diff --git a/app/controllers/exercise_controller.rb b/app/controllers/exercise_controller.rb
index d53dc067c..0a95fd025 100644
--- a/app/controllers/exercise_controller.rb
+++ b/app/controllers/exercise_controller.rb
@@ -5,14 +5,17 @@ class ExerciseController < ApplicationController
   before_filter :find_course, :only => [:index,:new,:create,:student_exercise_list]
   include ExerciseHelper
 
-  include ExerciseHelper
   def index
+    if @course.is_public == 0 && !User.current.member_of_course?(@course)
+      render_403
+      return
+    end
     remove_invalid_exercise(@course)
     @is_teacher = User.current.allowed_to?(:as_teacher,@course)
     if @is_teacher
-      exercises = @course.exercises
+      exercises = @course.exercises.order("created_at asc")
     else
-      exercises = @course.exercises.where(:exercise_status => 2)
+      exercises = @course.exercises.where(:exercise_status => 2).order("created_at asc")
     end
     @exercises = paginateHelper exercises,20 #分页
     respond_to do |format|
@@ -31,17 +34,24 @@ class ExerciseController < ApplicationController
       render_403
       return
     end
-    @can_edit_excercise = (!has_commit_exercise?(@exercise.id,User.current.id)) || User.current.admin?
+    exercise_end = Time.parse(format_time(@exercise.end_time)).strftime("%Y-%m-%d %H:%M:%S") > Time.now.strftime("%Y-%m-%d %H:%M:%S")
+    if @exercise.time == -1
+      @can_edit_excercise = exercise_end
+    else
+      @can_edit_excercise = (!has_commit_exercise?(@exercise.id,User.current.id)&& exercise_end) || User.current.admin?
+    end
     @exercise_user = ExerciseUser.where("user_id=? and exercise_id=?", User.current.id, @exercise.id).first
       # 学生点击的时候即创建关联,自动保存
       #eu = ExerciseUser.create(:user_id => User.current, :exercise_id => @exercise.id, :start_at => Time.now, :status => false)
 
     # 已提交问卷的用户不能再访问该界面
+=begin
     if has_commit_exercise?(@exercise.id, User.current.id) && (!User.current.admin?)
       respond_to do |format|
         format.html {render :layout => 'base_courses'}
       end
     else
+=end
       if !@is_teacher && !has_click_exercise?(@exercise.id, User.current.id)
         eu = ExerciseUser.create(:user_id => User.current.id, :exercise_id => @exercise.id, :start_at => Time.now, :status => false)
         @exercise_user = ExerciseUser.where("user_id=? and exercise_id=?", User.current.id, @exercise.id).first
@@ -52,7 +62,7 @@ class ExerciseController < ApplicationController
       respond_to do |format|
         format.html {render :layout => 'base_courses'}
       end
-    end
+    #end
   end
 
   def new
@@ -65,7 +75,6 @@ class ExerciseController < ApplicationController
         :end_time => "",
         :publish_time => "",
         :exercise_description => "",
-        :show_result => "",
         :show_result => 1
     }
     @exercise = Exercise.create option
@@ -80,7 +89,7 @@ class ExerciseController < ApplicationController
       exercise ||= Exercise.new
       exercise.exercise_name = params[:exercise][:exercise_name]
       exercise.exercise_description = params[:exercise][:exercise_description]
-      exercise.end_time = params[:exercise][:end_time]
+      exercise.end_time = Time.at(params[:exercise][:end_time].to_time.to_i + 16*60*60 -1)
       exercise.publish_time = params[:exercise][:publish_time]
       exercise.user_id = User.current.id
       exercise.time = params[:exercise][:time]
@@ -104,10 +113,10 @@ class ExerciseController < ApplicationController
   def update
     @exercise.exercise_name = params[:exercise][:exercise_name]
     @exercise.exercise_description = params[:exercise][:exercise_description]
-    @exercise.time =  params[:exercise][:time]
-    @exercise.end_time = params[:exercise][:end_time]
+    @exercise.time =  params[:exercise][:time].blank? ? -1 : params[:exercise][:time]
+    @exercise.end_time = Time.at(params[:exercise][:end_time].to_time.to_i + 16*60*60 -1)
     @exercise.publish_time = params[:exercise][:publish_time]
-    @exercise.show_result = params[:exercise][:show_result]
+    @exercise.show_result = params[:exercise][:show_result].blank? ? 1 : params[:exercise][:show_result]
     if @exercise.save
       respond_to do |format|
         format.js
@@ -300,6 +309,7 @@ class ExerciseController < ApplicationController
   # 发布试卷
   def publish_exercise
     @is_teacher = User.current.allowed_to?(:as_teacher,@course)
+    @index = params[:index]
     @exercise.exercise_status = 2
     @exercise.publish_time = Time.now
     if @exercise.save
@@ -314,11 +324,13 @@ class ExerciseController < ApplicationController
   # 重新发布的时候会删除所有的答题
   def republish_exercise
     @is_teacher = User.current.allowed_to?(:as_teacher,@course)
+    @index = params[:index]
     @exercise.exercise_questions.each do |exercise_question|
       exercise_question.exercise_answers.destroy_all
     end
     @exercise.exercise_users.destroy_all
     @exercise.exercise_status = 1
+    @exercise.publish_time = nil
     @exercise.save
     respond_to do |format|
       format.js
@@ -328,7 +340,7 @@ class ExerciseController < ApplicationController
   def student_exercise_list
     @is_teacher = User.current.allowed_to?(:as_teacher,@course) || User.current.admin?
     @exercise = Exercise.find params[:id]
-    @all_exercises = @course.exercises.order("created_at desc")
+    @all_exercises = @course.exercises.where("exercise_status > 1").order("created_at desc")
     @exercise_count = @exercise.exercise_users.where('score is not NULL').count
     if @is_teacher || (!@exercise.exercise_users.where(:user_id => User.current.id).empty? && Time.parse(@exercise.end_time.to_s).strftime("%Y-%m-%d-%H-%M-%S") <= Time.now.strftime("%Y-%m-%d-%H-%M-%S"))
       @exercise_users_list = @exercise.exercise_users.where('score is not NULL')
@@ -346,8 +358,8 @@ class ExerciseController < ApplicationController
   # 学生提交答卷，选中答案的过程中提交
   def commit_answer
     eq = ExerciseQuestion.find(params[:exercise_question_id])
-    # 已提交过的则不允许答题
-    if has_commit_exercise?(@exercise.id,User.current.id) && (!User.current.admin?)
+    # 已提交过的且是限时的则不允许答题
+    if (has_commit_exercise?(@exercise.id,User.current.id) && (!User.current.admin?) && @exercise.time != -1) || Time.parse(format_time(@exercise.end_time)).strftime("%Y-%m-%d %H:%M:%S") < Time.now.strftime("%Y-%m-%d %H:%M:%S")
       render :json => {:text => "failure"}
       return
     end
@@ -364,8 +376,14 @@ class ExerciseController < ApplicationController
       ea.exercise_choice_id = params[:exercise_choice_id]
       if ea.save
         # 保存成功返回成功信息及当前以答题百分比
+        uncomplete_question = get_uncomplete_question(@exercise, User.current)
+        if uncomplete_question.count < 1
+          complete = 1;
+        else
+          complete = 0;
+        end
         @percent = get_percent(@exercise,User.current)
-        render :json => {:text => "ok" ,:percent => format("%.2f" ,@percent)}
+        render :json => {:text => "ok" ,:complete => complete,:percent => format("%.2f" ,@percent)}
       else
         #返回失败信息
         render :json => {:text => "failure"}
@@ -380,8 +398,14 @@ class ExerciseController < ApplicationController
         ea.exercise_question_id = params[:exercise_question_id]
         ea.exercise_choice_id = params[:exercise_choice_id]
         if ea.save
+          uncomplete_question = get_uncomplete_question(@exercise, User.current)
+          if uncomplete_question.count < 1
+            complete = 1;
+          else
+            complete = 0;
+          end
           @percent = get_percent(@exercise,User.current)
-          render :json => {:text => "ok",:percent => format("%.2f" ,@percent)}
+          render :json => {:text => "ok",:complete => complete,:percent => format("%.2f" ,@percent)}
         else
           render :json => {:text => "failure"}
         end
@@ -410,8 +434,14 @@ class ExerciseController < ApplicationController
           ea.exercise_question_id = params[:exercise_question_id]
           ea.answer_text = params[:answer_text]
           if ea.save
+            uncomplete_question = get_uncomplete_question(@exercise, User.current)
+            if uncomplete_question.count < 1
+              complete = 1;
+            else
+              complete = 0;
+            end
             @percent = get_percent(@exercise,User.current)
-            render :json => {:text => ea.answer_text,:percent => format("%.2f",@percent)}
+            render :json => {:text => ea.answer_text,:complete => complete,:percent => format("%.2f",@percent)}
           else
             render :json => {:text => "failure"}
           end
@@ -447,6 +477,17 @@ class ExerciseController < ApplicationController
   def commit_exercise
     # 老师不需要提交
     if User.current.allowed_to?(:as_teacher,@course)
+      if @exercise.publish_time.nil?
+        @exercise.update_attributes(:show_result => params[:show_result])
+        @exercise.update_attributes(:exercise_status => 2)
+        @exercise.update_attributes(:publish_time => Time.now)
+        redirect_to exercise_url(@exercise)
+        return
+      elsif Time.parse(@exercise.publish_time.to_s).strftime("%Y-%m-%d-%H-%M-%S") > Time.now.strftime("%Y-%m-%d-%H-%M-%S")
+        @exercise.update_attributes(:show_result => params[:show_result])
+        redirect_to exercise_url(@exercise)
+        return
+      end
       @exercise.update_attributes(:show_result => params[:show_result])
       redirect_to exercise_url(@exercise)
       # REDO: 提示提交成功
@@ -490,7 +531,7 @@ class ExerciseController < ApplicationController
     exercise_qustions.each do |question|
       answer = get_user_answer(question, user)
       standard_answer = get_user_standard_answer(question, user)
-      unless answer.nil?
+      unless answer.empty?
         # 问答题有多个答案
         if question.question_type == 3
           if standard_answer.include?(answer.first.answer_text)
@@ -532,19 +573,6 @@ class ExerciseController < ApplicationController
     eu
   end
 
-  #获取未完成的题目
-  def get_uncomplete_question exercise,user
-    all_questions = exercise.exercise_questions
-    uncomplete_question = []
-    all_questions.each do |question|
-      answers = get_user_answer(question, user)
-      if answers.nil?
-        uncomplete_question << question
-      end
-    end
-    uncomplete_question
-  end
-
   # 获取当前学生回答问题的答案
   def get_user_answer(question,user)
     # user_answer = ExerciseAnswer.where("user_id=? and exercise_question_id=?", user.id, question.id).first
@@ -563,7 +591,8 @@ class ExerciseController < ApplicationController
       standard_answer = question.exercise_standard_answers.first
     end
     standard_answer
-  end  # 是否完成了答题
+  end
+  # 是否完成了答题
   def get_complete_question(exercise,user)
     questions = exercise.exercise_questions
     complete_question = []
diff --git a/app/controllers/files_controller.rb b/app/controllers/files_controller.rb
index a2902e3fc..b15be4896 100644
--- a/app/controllers/files_controller.rb
+++ b/app/controllers/files_controller.rb
@@ -374,6 +374,9 @@ class FilesController < ApplicationController
        if !attachments.empty? && !attachments[:files].blank? && Setting.notified_events.include?('file_added')
          Mailer.run.attachments_added(attachments[:files])
        end
+       # 更新课程英雄榜得分
+       update_contributor_score(@course, attachments[:files].first)
+       # end
        if params[:course_attachment_type] && params[:course_attachment_type].is_a?(Array)
          params[:course_attachment_type].each do |type|
            tag_name = get_tag_name_by_type_number  type
@@ -423,6 +426,20 @@ class FilesController < ApplicationController
    end
   end
 
+  def update_contributor_score(course, file )
+    unless  file.author.allowed_to?(:as_teacher, course)
+      course_contributor_score = CourseContributorScore.where("course_id =? and user_id =?", course.id,  file.author.id).first
+      if  course_contributor_score.nil?
+        CourseContributorScore.create(:course_id => course.id, :user_id => file.author.id, :message_num => 0, :message_reply_num => 0,
+                                      :news_reply_num => 0, :resource_num => 5, :journal_num => 0, :journal_reply_num => 0, :total_score => 5)
+      else
+        score = course_contributor_score.resource_num + 5
+        total_score = course_contributor_score.total_score + 5
+        course_contributor_score.update_attributes(:resource_num => score, :total_score => total_score)
+      end
+    end
+  end
+
   def get_tag_name_by_type_number type
     case type
       when "1"
diff --git a/app/controllers/repositories_controller.rb b/app/controllers/repositories_controller.rb
index 1f252cc24..2bd54954a 100644
--- a/app/controllers/repositories_controller.rb
+++ b/app/controllers/repositories_controller.rb
@@ -34,7 +34,7 @@ class RepositoriesController < ApplicationController
   before_filter :find_repository, :only => [:edit, :update, :destroy, :committers]
   before_filter :find_project_repository, :except => [:new, :create, :newcreate, :edit, :update, :destroy, :committers, :newrepo,:to_gitlab]
   before_filter :find_changeset, :only => [:revision, :add_related_issue, :remove_related_issue]
-  before_filter :authorize , :except => [:newrepo,:newcreate,:fork, :to_gitlab]
+  before_filter :authorize , :except => [:newrepo,:newcreate,:fork, :to_gitlab, :forked]
   accept_rss_auth :revisions
   # hidden repositories filter // 隐藏代码过滤器
   before_filter :check_hidden_repo, :only => [:show, :stats, :revisions, :revision, :diff ]
@@ -42,7 +42,7 @@ class RepositoriesController < ApplicationController
   include RepositoriesHelper
   helper :project_score
   #@root_path = RepositoriesHelper::ROOT_PATH
-
+  $g=Gitlab.client
 
   rescue_from Redmine::Scm::Adapters::CommandFailed, :with => :show_error_command_failed
   def new
@@ -63,6 +63,78 @@ class RepositoriesController < ApplicationController
 
   end
 
+  def forked
+    # 被forked的标识如果不满足单个用户唯一性，则不执行fork
+    if is_sigle_identifier?(User.current, @repository.identifier)
+      # REDO: 那些人有权限forked项目
+      g = Gitlab.client
+      gproject = g.post ("/projects/fork/#{@project.gpid}?user_id=#{User.current.gid}")
+      if gproject
+        copy_project(@project, gproject)
+      end
+    else
+      flash[:notice] = l(:project_gitlab_fork_double_message)
+      redirect_to settings_project_url(@project, :tab => 'repositories')
+    end
+  end
+
+  # copy a project for fork
+  def copy_project(project, gproject)
+    project = Project.new
+    project.name = @project.name
+    project.is_public = @project.is_public
+    project.status = @project.status
+    project.description = @project.description
+    project.hidden_repo = @project.hidden_repo
+    project.user_id = User.current.id
+    project.project_type = 0
+    project.project_new_type = @project.project_new_type
+    project.gpid = gproject.id
+    if project.save
+      r = Role.givable.find_by_id(Setting.new_project_user_role_id.to_i) || Role.givable.first
+      m = Member.new(:user => User.current, :roles => [r])
+      project_info = ProjectInfo.new(:user_id => User.current.id, :project_id => project.id)
+      user_grades =  UserGrade.create(:user_id => User.current.id, :project_id => project.id)
+      Rails.logger.debug "UserGrade created: #{user_grades.to_json}"
+      project_status = ProjectStatus.create(:project_id => @project.id, :watchers_count => 0, :changesets_count => 0, :project_type => @project.project_type,:grade => 0)
+      Rails.logger.debug "ProjectStatus created: #{project_status.to_json}"
+      project.members << m
+      project.project_infos << project_info
+      copy_repository(project, gproject)
+      respond_to do |format|
+        format.html {
+          flash[:notice] = l(:notice_successful_create)
+          if params[:continue]
+            attrs = {:parent_id => project.parent_id}.reject {|k,v| v.nil?}
+            redirect_to new_project_url(attrs, :course => '0')
+          else
+            redirect_to settings_project_url(project)
+          end
+        }
+        format.api  { render :action => 'show', :status => :created, :location => url_for(:controller => 'projects', :action => 'show', :id => project.id) }
+        format.js
+      end
+    else
+      respond_to do |format|
+        format.html { render :action => 'forked', :layout => 'base_projects'}
+        format.api  { render_validation_errors(@project) }
+      end
+    end
+  end
+
+  def copy_repository(project, gproject)
+    # 避免
+    if is_sigle_identifier?(project.user_id, gproject.name)
+      repository = Repository.factory('Git')
+      repository.project_id = project.id
+      repository.type = 'Repository::Gitlab'
+      repository.url = gproject.name
+      repository.identifier = gproject.name
+      repository = repository.save
+    else
+      flash[:notice] = l(:project_gitlab_create_double_message)
+    end
+  end
 
   def newrepo
     scm = params[:repository_scm] || (Redmine::Scm::Base.all & Setting.enabled_scm).first
@@ -115,21 +187,27 @@ update
   }
 
   def create
-    attrs = pickup_extra_info
-    @repository = Repository.factory('Git')
-    @repository.safe_attributes = params[:repository]
-    if attrs[:attrs_extra].keys.any?
-      @repository.merge_extra_info(attrs[:attrs_extra])
-    end
-    @repository.project = @project
-    @repository.type = 'Repository::Gitlab'
-    @repository.url = @repository.identifier
-    if request.post? && @repository.save
-      s = Trustie::Gitlab::Sync.new
-      s.create_project(@project, @repository)
+    # 判断版本库创建者是否有同名版本库，避免版本库路径一致问题
+    unless is_sigle_identifier?(@project.user_id, params[:repository].first[1])
+      flash[:notice] = l(:project_gitlab_create_double_message)
       redirect_to settings_project_url(@project, :tab => 'repositories')
     else
-      redirect_to settings_project_url(@project, :tab => 'repositories',:repository_error_message=>@repository.errors.full_messages)
+      attrs = pickup_extra_info
+      @repository = Repository.factory('Git')
+      @repository.safe_attributes = params[:repository]
+      if attrs[:attrs_extra].keys.any?
+        @repository.merge_extra_info(attrs[:attrs_extra])
+      end
+      @repository.project = @project
+      @repository.type = 'Repository::Gitlab'
+      @repository.url = @repository.identifier
+      if request.post? && @repository.save
+        s = Trustie::Gitlab::Sync.new
+        s.create_project(@project, @repository)
+        redirect_to settings_project_url(@project, :tab => 'repositories')
+      else
+        redirect_to settings_project_url(@project, :tab => 'repositories',:repository_error_message=>@repository.errors.full_messages)
+      end
     end
   end
 
@@ -237,14 +315,34 @@ update
       #Modified by young
       #  (show_error_not_found; return) unless @entries
       g = Gitlab.client
-      count = 0
-      (0..100).each do |page|
-        if g.commits(@project.gpid,:page => page).count == 0
-          break
-        else
-          count = count + g.commits(@project.gpid,:page => page).count
-        end
+
+      # count = 0
+      # (0..100).each do |page|
+      #   if g.commits(@project.gpid,:page => page).count == 0
+      #     break
+      #   else
+      #     count = count + g.commits(@project.gpid,:page => page).count
+      #   end
+      # end
+
+
+      #add by hx
+      if g.commits(@project.gpid , :page=>25).count==0
+        count = count_commits(@project.gpid , 0 , 25)
+      elsif g.commits(@project.gpid , :page=>50).count ==0
+        count = count_commits(@project.gpid , 25 , 50)+ 25 * 20
+      elsif g.commits(@project.gpid , :page=>75).count ==0
+        count = count_commits(@project.gpid , 50 , 75)+ 50 * 20
+      elsif g.commits(@project.gpid , :page=>100).count== 0
+        count = count_commits(@project.gpid , 75 , 100) + 75 * 20
+      elsif g.commits(@project.gpid , :page=>125).count==0
+        count = count_commits(@project.gpid , 100 , 125) + 100 * 20
+      elsif g.commits(@project.gpid , :page=>150).count==0
+        count = count_commits(@project.gpid , 125 , 150) + 125 * 20
+      else
+        count = count_commits(@project.gpid , 150 ,200) + 150 * 20
       end
+
       @changesets = g.commits(@project.gpid)
       # @changesets = @repository.latest_changesets(@path, @rev)
       # @changesets_count = @repository.latest_changesets(@path, @rev).count
@@ -271,11 +369,30 @@ update
 
   alias_method :browse, :show
 
+  #add by hx
+  def count_commits(project_id , left , right)
+    count = 0
+    (left..right).each do |page|
+      if $g.commits(project_id,:page => page).count == 0
+        break
+      else
+        count = count + $g.commits(project_id,:page => page).count
+      end
+    end
+    return count
+  end
+
   def changes
     @entry = @repository.entry(@path, @rev)
     (show_error_not_found; return) unless @entry
     g = Gitlab.client
-    @commits = g.commits(@project.gpid, page:params[:pamge])
+    limit = 20
+    #每次页面的换回值从1开始,但是gitlab的页面查询是从0开始,所以先改变page的类型减一在改回来
+    @commits = g.commits(@project.gpid, page:(params[:page].to_i - 1).to_s)
+    #页面传递必须要str类型,但是Paginator的初始化必须要num类型,需要类型转化
+    @commits_count = params[:commit_count].to_i
+    @commits_pages = Redmine::Pagination::Paginator.new @commits_count,limit,params[:page]
+
     @commit = g.commit(@project.gpid,@rev)
     # @changesets = g.get ("/projects/#{@project.gpid}/repository/commits?#{@rev}")
     #@changesets = @repository.latest_changesets(@path, @rev, Setting.repository_log_display_limit.to_i)
@@ -284,6 +401,7 @@ update
     render :layout => 'base_projects'
   end
 
+
   def revisions
     @changeset_count = @repository.changesets.count
     @changeset_pages = Paginator.new @changeset_count,
@@ -467,8 +585,8 @@ update
   def find_repository
     @repository = Repository.find(params[:id])
     @project = @repository.project
-  rescue ActiveRecord::RecordNotFound
-    render_404
+    rescue ActiveRecord::RecordNotFound
+      render_404
   end
 
   REV_PARAM_RE = %r{\A[a-f0-9]*\Z}i
diff --git a/app/controllers/student_work_controller.rb b/app/controllers/student_work_controller.rb
index 9ad46cd69..d2aba1386 100644
--- a/app/controllers/student_work_controller.rb
+++ b/app/controllers/student_work_controller.rb
@@ -76,7 +76,7 @@ class StudentWorkController < ApplicationController
     end
     ##################################################################################################################
     @order,@b_sort,@name,@group = params[:order] || "score",params[:sort] || "desc",params[:name] || "",params[:group]
-    @homework_commons = @course.homework_commons.order("created_at desc")
+    @homework_commons = @course.homework_commons.where("publish_time <= ?",Time.now.strftime("%Y-%m-%d")).order("created_at desc")
     @is_teacher = User.current.allowed_to?(:as_teacher,@course) || User.current.admin?
     @is_evaluation = @homework.homework_detail_manual && @homework.homework_detail_manual.comment_status == 2 && !@is_teacher #是不是匿评
     @show_all = false
@@ -167,6 +167,18 @@ class StudentWorkController < ApplicationController
   end
 
   def create
+    # 提交作品前先判断是否已经提交
+    @has_commit = false;
+    if hsd_committed_work?(User.current.id, @homework.id)
+      @work = StudentWork.where("user_id =? and homework_common_id =?", User.current.id, @homework.id).first
+      @has_commit = true;
+      #flash[:notice] = l(:notice_successful_create)
+      #redirect_to edit_student_work_url(params[:student_work])
+      respond_to do |format|
+        format.js
+      end
+      return
+    end
     if params[:student_work]
       @submit_result = true
       student_work = StudentWork.find(params[:student_work_id]) if params[:student_work_id]
@@ -499,6 +511,12 @@ class StudentWorkController < ApplicationController
   end
 
   private
+  def hsd_committed_work?(user, homework)
+    sw = StudentWork.where("user_id =? and homework_common_id =?", user, homework).first
+    sw.nil? ? result = false : result = true
+    result
+  end
+
   #获取作业
   def find_homework
     @homework = HomeworkCommon.find params[:homework]
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index f4e0f88ff..046e0c5a0 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -75,6 +75,50 @@ module ApplicationHelper
     end
   end
 
+  # 更新课程英雄榜得分
+  # user传过来必须是学生
+  def course_member_score(course_id,user_id,type)
+    course_contributor_score = CourseContributorScore.where("course_id =? and user_id =?", course_id, user_id).first
+    case type
+      when "JournalForMessage"
+        if  course_contributor_score.nil?
+          CourseContributorScore.create(:course_id => course_id, :user_id => user_id, :message_num => 0, :message_reply_num => 0,
+                                            :news_reply_num => 0, :resource_num => 0, :journal_num => 1, :journal_reply_num => 0, :total_score => 1)
+        else
+          score = course_contributor_score.journal_num + 1
+          total_score = course_contributor_score.total_score + 1
+          course_contributor_score.update_attributes(:journal_num => score, :total_score => total_score)
+        end
+      when  "Message"
+        if  course_contributor_score.nil?
+          CourseContributorScore.create(:course_id => course_id, :user_id => user_id, :message_num => 2, :message_reply_num => 0,
+                                            :news_reply_num => 0, :resource_num => 0, :journal_num => 0, :journal_reply_num => 0, :total_score => 2)
+        else
+          score = course_contributor_score.message_num + 2
+          total_score = course_contributor_score.total_score + 2
+          course_contributor_score.update_attributes(:message_num => score, :total_score => total_score)
+        end
+      when "MessageReply"
+        if  course_contributor_score.nil?
+          CourseContributorScore.create(:course_id => course_id, :user_id => user_id, :message_num => 0, :message_reply_num => 1,
+                                            :news_reply_num => 0, :resource_num => 0, :journal_num => 0, :journal_reply_num => 0, :total_score => 1)
+        else
+          score = course_contributor_score.message_reply_num + 1
+          total_score = course_contributor_score.total_score + 1
+          course_contributor_score.update_attributes(:message_reply_num => score, :total_score => total_score)
+        end
+      when "NewReply"
+        if  course_contributor_score.nil?
+          CourseContributorScore.create(:course_id => course_id, :user_id => user_id, :message_num => 0, :message_reply_num => 0,
+                                            :news_reply_num => 1, :resource_num => 0, :journal_num => 0, :journal_reply_num => 0, :total_score => 1)
+        else
+          score = course_contributor_score.news_reply_num + 1
+          total_score = course_contributor_score.total_score + 1
+          course_contributor_score.update_attributes(:news_reply_num => score, :total_score => total_score)
+        end
+    end
+  end
+
   # Added by young
   # Define the course menu's link class
   # 不是数组的转化成数组，然后判断当前menu_item是否在给定的列表
diff --git a/app/helpers/courses_helper.rb b/app/helpers/courses_helper.rb
index caca6fb1e..a1b119cb5 100644
--- a/app/helpers/courses_helper.rb
+++ b/app/helpers/courses_helper.rb
@@ -25,6 +25,10 @@ module CoursesHelper
     # searchTeacherAndAssistant(project).count
   end
 
+  def show_nav?(count)
+    count == 0 ? true : false
+  end
+
   #课程模块需要展示的模块
   def course_model
     @nav_dispaly_course_all_label = 1
@@ -733,4 +737,26 @@ module CoursesHelper
     end
     desc.html_safe
   end
+
+  # 学生按作业总分排序，取前8个
+  def hero_homework_score(course, score_sort_by)
+    sql_select = "SELECT members.*,(
+          SELECT SUM(student_works.final_score)
+          FROM student_works,homework_commons
+          WHERE student_works.homework_common_id = homework_commons.id
+          AND homework_commons.course_id = #{course.id}
+          AND student_works.user_id = members.user_id
+        ) AS score
+        FROM members
+        JOIN students_for_courses
+        ON students_for_courses.student_id = members.user_id AND students_for_courses.course_id = members.course_id
+        WHERE members.course_id = #{course.id} ORDER BY score #{score_sort_by} limit 9"
+    homework_scores = Member.find_by_sql(sql_select)
+  end
+
+  def contributor_course_scor(course_id)
+    ccs = CourseContributorScore.where("course_id =?", course_id).order("total_score desc") .limit(9)
+  end
+
 end
+
diff --git a/app/helpers/exercise_helper.rb b/app/helpers/exercise_helper.rb
index bb87f3b82..b0d0118e5 100644
--- a/app/helpers/exercise_helper.rb
+++ b/app/helpers/exercise_helper.rb
@@ -107,6 +107,19 @@ module ExerciseHelper
     end
   end
 
+  #获取未完成的题目
+  def get_uncomplete_question exercise,user
+    all_questions = exercise.exercise_questions
+    uncomplete_question = []
+    all_questions.each do |question|
+      answers = get_user_answer(question, user)
+      if answers.empty?
+        uncomplete_question << question
+      end
+    end
+    uncomplete_question
+  end
+
   #获取文本题答案
   def get_anwser_vote_text(question_id,user_id)
     pv = ExerciseAnswer.find_by_exercise_question_id_and_user_id(question_id,user_id)
diff --git a/app/helpers/repositories_helper.rb b/app/helpers/repositories_helper.rb
index f32bef51b..ff4aa61fb 100644
--- a/app/helpers/repositories_helper.rb
+++ b/app/helpers/repositories_helper.rb
@@ -27,6 +27,20 @@ module RepositoriesHelper
   REPO_IP_ADDRESS = Setting.host_repository
   REPO_GITLAB_ADDRESS = "git.trustie.net"
 
+  # 某个成员不能拥有同名版本库，不同的成员可以创建同名版本库
+  def is_sigle_identifier?(user_id, iden)
+    projects = Project.where("user_id =?",user_id)
+    identifiers = []
+    projects.each do |project|
+      # 只针对gitlab类型的，git类型的后期清掉
+      repository = Repository.where("project_id =? and type =?", project.id, "Repository::Gitlab").first
+      if repository
+        identifiers << repository.identifier
+      end
+    end
+    identifiers.include?(iden) ? false :true
+  end
+
   def format_revision(revision)
     if revision.respond_to? :format_identifier
       revision.format_identifier
@@ -47,7 +61,7 @@ module RepositoriesHelper
 
   def user_commit_rep(mail)
     user = User.find_by_mail(mail)
-    user.nil? ? User.find(2) :  User.find_by_mail(mail)
+    #user.nil? ? User.find(2) :  User.find_by_mail(mail)
   end
 
   def render_properties(properties)
diff --git a/app/models/attachment.rb b/app/models/attachment.rb
index f7fb9b1aa..9c6bb9cb1 100644
--- a/app/models/attachment.rb
+++ b/app/models/attachment.rb
@@ -560,4 +560,5 @@ class Attachment < ActiveRecord::Base
       self.course_acts << CourseActivity.new(:user_id => self.author_id,:course_id => self.container_id)
     end
   end
+
 end
diff --git a/app/models/comment.rb b/app/models/comment.rb
index bb31eb894..9de25c50d 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -35,7 +35,7 @@ class Comment < ActiveRecord::Base
   belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
   validates_presence_of :commented, :author, :comments
   safe_attributes 'comments'
-  after_create :send_mail, :act_as_system_message
+  after_create :send_mail, :act_as_system_message, :act_as_student_score
 
   def act_as_system_message
     if self.commented.course
@@ -66,13 +66,24 @@ class Comment < ActiveRecord::Base
   def set_notify_id(notify_id)
     @notify_id= notify_id
   end
+
   def get_notify_id()
     return @notify_id
   end
+
   def set_notify_is_read(notify_is_read)
     @notify_is_read = notify_is_read
   end
+
   def get_notify_is_read()
     return @notify_is_read
   end
+
+  # 课程成员得分（英雄榜）
+  def act_as_student_score
+    unless self.author.allowed_to?(:as_teacher, self.commented.course)
+      course_member_score(self.commented.course.id, self.author_id, "NewReply")
+    end
+  end
+
 end
diff --git a/app/models/course.rb b/app/models/course.rb
index 1350b8cf7..ec1afd611 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -40,8 +40,10 @@ class Course < ActiveRecord::Base
 
   has_many :course_activities
   # 课程消息
-  has_many :course_messages,  :class_name =>'CourseMessage', :as => :course_message, :dependent => :destroy
+  has_many :course_messages, :class_name =>'CourseMessage', :as => :course_message, :dependent => :destroy
   has_many :exercises, :dependent => :destroy
+  # 课程贡献榜
+  has_many :course_contributor_scores, :dependent => :destroy
 
   acts_as_taggable
   acts_as_nested_set :order => 'name', :dependent => :destroy
diff --git a/app/models/course_contributor_score.rb b/app/models/course_contributor_score.rb
new file mode 100644
index 000000000..f2b05458f
--- /dev/null
+++ b/app/models/course_contributor_score.rb
@@ -0,0 +1,5 @@
+class CourseContributorScore < ActiveRecord::Base
+  attr_accessible :course_id, :journal_num, :journal_reply_num, :message_num, :message_reply_num, :news_reply_num, :resource_num, :user_id, :total_score
+  belongs_to :course
+  belongs_to :user
+end
diff --git a/app/models/journals_for_message.rb b/app/models/journals_for_message.rb
index 5e40267cb..eaece95ce 100644
--- a/app/models/journals_for_message.rb
+++ b/app/models/journals_for_message.rb
@@ -64,7 +64,7 @@ class JournalsForMessage < ActiveRecord::Base
   has_many :user_feedback_messages, :class_name => 'UserFeedbackMessage', :as =>:journals_for_message, :dependent => :destroy
 
   validates :notes, presence: true, if: :is_homework_jour?
-  after_create :act_as_activity, :act_as_course_activity, :act_as_course_message, :act_as_user_feedback_message, :act_as_principal_activity
+  after_create :act_as_activity, :act_as_course_activity, :act_as_course_message, :act_as_user_feedback_message, :act_as_principal_activity, :act_as_student_score
   after_create :reset_counters!
   after_destroy :reset_counters!
   after_save :be_user_score
@@ -263,4 +263,12 @@ class JournalsForMessage < ActiveRecord::Base
 
     end
   end
+
+  # 课程成员得分（英雄榜）
+  def act_as_student_score
+    unless self.user.allowed_to?(:as_teacher, self.jour)
+      course_member_score(self.jour_id, self.user_id, "JournalForMessage")
+    end
+  end
+
 end
diff --git a/app/models/message.rb b/app/models/message.rb
index 7af59815b..21e5e1c71 100644
--- a/app/models/message.rb
+++ b/app/models/message.rb
@@ -74,7 +74,7 @@ class Message < ActiveRecord::Base
   after_update :update_messages_board
   after_destroy :reset_counters!,:down_user_score,:delete_kindeditor_assets
   
-  after_create :act_as_activity,:act_as_course_activity,:be_user_score,:act_as_forge_activity, :act_as_system_message, :send_mail
+  after_create :act_as_activity,:act_as_course_activity,:be_user_score,:act_as_forge_activity, :act_as_system_message, :send_mail, :act_as_student_score
   #before_save :be_user_score
 
   scope :visible, lambda {|*args|
@@ -285,4 +285,16 @@ class Message < ActiveRecord::Base
     delete_kindeditor_assets_from_disk self.id,OwnerTypeHelper::MESSAGE
   end
 
+  # 课程成员得分（英雄榜）
+  def act_as_student_score
+    unless  self.author.allowed_to?(:as_teacher, self.course)
+      if self.parent_id.nil?
+        # 发帖
+        course_member_score(self.course.id, self.author_id, "Message")
+      else
+        # 回帖
+        course_member_score(self.course.id, self.author_id, "MessageReply")
+      end
+    end
+  end
 end
diff --git a/app/models/repository.rb b/app/models/repository.rb
index 94b7905c6..f50f37f31 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -40,7 +40,8 @@ class Repository < ActiveRecord::Base
   validates_length_of :identifier, :maximum => IDENTIFIER_MAX_LENGTH, :allow_blank => true
   validates_presence_of :identifier#, :unless => Proc.new { |r| r.is_default? || r.set_as_default? }
   #validates_uniqueness_of :identifier, :scope => :project_id, :allow_blank => true
-  validates_uniqueness_of :identifier, :allow_blank => true
+  # 改成同一用户不能有两个相同名字的版本库
+  # validates_uniqueness_of :identifier, :allow_blank => true
   validates_exclusion_of :identifier, :in => %w(show entry raw changes annotate diff show stats graph)
   # donwcase letters, digits, dashes, underscores but not digits only
   validates_format_of :identifier, :with => /^[a-z0-9_\-]+$/, :allow_blank => true
@@ -52,7 +53,8 @@ class Repository < ActiveRecord::Base
     'password',
     'path_encoding',
     'log_encoding',
-    'is_default'
+    'is_default',
+    'type'
 
   safe_attributes 'url',
     :if => lambda {|repository, user| repository.new_record?}
@@ -63,6 +65,10 @@ class Repository < ActiveRecord::Base
   end
 
   def repo_create_validation
+    # 之所以可以这样改，是因为Fork的时候不需要从Trustie创建版本库，只需从Gitlab关联即可
+    if self.class.name.demodulize == "Repository"
+      return
+    end
     unless Setting.enabled_scm.include?(self.class.name.demodulize)
       errors.add(:type, :invalid)
     end
diff --git a/app/models/user.rb b/app/models/user.rb
index 3e7bc2ddb..cd8b96d47 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -153,6 +153,8 @@ class User < Principal
   # 邮件邀请状态
   has_many :invite_lists,  :dependent => :destroy
   # end
+  # 课程贡献榜
+  has_many :course_contributor_scores, :dependent => :destroy
 
 ######added by nie
   has_many :project_infos, :dependent => :destroy
diff --git a/app/views/courses/_tool_expand.html.erb b/app/views/courses/_tool_expand.html.erb
new file mode 100644
index 000000000..9a36b8efb
--- /dev/null
+++ b/app/views/courses/_tool_expand.html.erb
@@ -0,0 +1,47 @@
+<% course_file_num = visable_attachemnts_incourse(@course).count%>
+<% is_teacher = User.current.logged? && (User.current.admin? || User.current.allowed_to?(:as_teacher,@course)) %>
+<% if show_nav?(@course.homework_commons.count) %>
+    <div class="subNav">
+      <%= link_to l(:label_homework), homework_common_index_path(:course => @course.id), :class => "f14 c_blue02 ml10"%>
+      <%= link_to( "", homework_common_index_path(:course => @course.id,:is_new => 1), :class => 'courseMenuSetting', :title =>"#{l(:label_course_homework_new)}") if is_teacher %>
+    </div>
+<% end %>
+<% if show_nav?(@course.news.count) %>
+    <div class="subNav">
+      <%= link_to l(:label_course_news), course_news_index_path(@course), :class => "f14 c_blue02 ml10" %>
+      <%= link_to( "", new_course_news_path(@course), :class => 'courseMenuSetting', :title =>"#{l(:label_course_news_new)}") if is_teacher %>
+    </div>
+<% end %>
+<% if show_nav?(course_file_num) %>
+    <div class="subNav">
+      <%= link_to l(:label_course_file), course_files_path(@course), :class => "f14 c_blue02 ml10" %>
+      <% if is_teacher || (@course.publish_resource == 1  && User.current.member_of_course?(@course)) %>
+          <!--link_to( "+#{l(:label_upload_files)}", course_files_path(@course), :class => 'subnav_green ml95 c_white')-->
+          <a class="courseMenuSetting" title="上传资源" href="javascript:void(0);" onclick="course_files_upload();"> </a>
+      <% end %>
+    </div>
+<% end %>
+<% if show_nav?(@course.boards.first ? @course.boards.first.topics.count : 0) %>
+    <div class="subNav">
+      <%= link_to l(:label_course_board), course_boards_path(@course), :class => "f14 c_blue02 ml10" %>
+      <%= link_to( "",course_boards_path(@course, :flag => true, :is_new => 1), :class => 'courseMenuSetting', :title =>"#{l(:label_message_new)}") if User.current.member_of_course?(@course) && @course.boards.first %>
+    </div>
+<% end %>
+<% if show_nav?(course_feedback_count) %>
+    <div class="subNav">
+      <%= link_to l(:label_course_feedback), course_feedback_path(@course), :class => "f14 c_blue02 ml10" %>
+      <%= link_to "", course_feedback_path(@course), :class => 'courseMenuSetting', :title =>"#{l(:label_message_new)}", :id => "course_jour_count"%>
+    </div>
+<% end %>
+<% if show_nav?(course_poll_count) %>
+    <div class="subNav">
+      <%= link_to l(:label_poll), poll_index_path(:polls_type => "Course", :polls_group_id => @course.id), :class => " f14 c_blue02 ml10"%>
+      <%= link_to( "", new_poll_path(:polls_type => "Course",:polls_group_id => @course.id), :class => 'courseMenuSetting', :title =>"#{l(:label_new_poll)}") if is_teacher %>
+    </div>
+<% end %>
+<% if show_nav?(User.current.allowed_to?(:as_teacher,@course)? @course.exercises.count : @course.exercises.where("exercise_status=2").count) %>
+    <div class="subNav">
+      <%= link_to "在线测验", exercise_index_path(:course_id => @course.id), :class => " f14 c_blue02 ml10"%>
+      <%= link_to( "", new_exercise_path(:course_id => @course.id), :class => 'courseMenuSetting', :title =>"新建试卷") if is_teacher %>
+    </div>
+<% end %>
\ No newline at end of file
diff --git a/app/views/exercise/_commit_alert.html.erb b/app/views/exercise/_commit_alert.html.erb
index d92ca51fb..e9c3ebf57 100644
--- a/app/views/exercise/_commit_alert.html.erb
+++ b/app/views/exercise/_commit_alert.html.erb
@@ -1,12 +1,21 @@
 <div id="popbox" style="text-align: center;margin-top: 25px">
-  <% if status == 0 %>
+  <% if status == 0 && exercise.time != -1%>
       <h3 style="font-weight: normal;color: green">提交成功!您的分数是：<%=@score %>分。</h3>
       <%= link_to "确定", exercise_path(),:class => 'commit'%>
-  <% elsif status == 1 %>
-      <h3 style="font-weight: normal;color: red">您还有尚未作答的题目请完成后再提交!</h3>
-      <%= link_to "确定", "javascript:void(0)",:onclick => 'hidden_atert_form();',:class => 'commit'%>
-  <% else %>
+  <% elsif status == 0 && Time.parse(format_time(exercise.end_time)).strftime("%Y-%m-%d %H:%M:%S") > Time.now.strftime("%Y-%m-%d %H:%M:%S") %>
+      <h3 style="font-weight: normal;color: green">提交成功!</h3>
+      <%= link_to "确定", exercise_index_path(:course_id => @course.id),:class => 'commit'%>
+  <% elsif status == 1 && Time.parse(format_time(exercise.end_time)).strftime("%Y-%m-%d %H:%M:%S") > Time.now.strftime("%Y-%m-%d %H:%M:%S")%>
+      <h3 style="font-weight: normal;color: red">保存成功!</h3>
+      <%= link_to "确定",exercise_index_path(:course_id => @course.id),:class => 'commit'%>
+  <% elsif status == 1 && Time.parse(format_time(exercise.end_time)).strftime("%Y-%m-%d %H:%M:%S") <= Time.now.strftime("%Y-%m-%d %H:%M:%S")%>
+      <h3 style="font-weight: normal;color: red">时间已到!</h3>
+      <%= link_to "确定", exercise_path(),:class => 'commit'%>
+  <% elsif status == 2 %>
       <h3 style="font-weight: normal;color: red">发生未知错误，请检查您的网络。</h3>
       <%= link_to "确定", "javascript:void(0)",:onclick => 'hidden_atert_form();',:class => 'commit'%>
+  <% else %>
+      <h3 style="font-weight: normal;color: green">时间已到!您的分数是：<%=@score %>分。</h3>
+      <%= link_to "确定", exercise_path(),:class => 'commit'%>
   <% end %>
 </div>
diff --git a/app/views/exercise/_edit_MC.html.erb b/app/views/exercise/_edit_MC.html.erb
index 008c95c24..f4ececf8f 100644
--- a/app/views/exercise/_edit_MC.html.erb
+++ b/app/views/exercise/_edit_MC.html.erb
@@ -1,63 +1,63 @@
-<%= form_for("",:url => update_exercise_question_exercise_index_path(:exercise_question => exercise_question.id),:remote => true) do |f|%>
-    <!--编辑单选start-->
-    <script type="text/javascript">
-        function resetQuestion<%=exercise_question.id%>()
-        {
-            $("#poll_questions_title_<%=exercise_question.id%>").val("<%= exercise_question.question_title%>")
-            $("#poll_question_score_<%=exercise_question.id %>").val("<%= exercise_question.question_score%>")
-            $("#poll_question_standard_answer_<%=exercise_question.id %>").val("<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s)%>")
-            $("#poll_answers_<%=exercise_question.id%>").html("<% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>" +
-                    "<li class='ur_item'>" +
-                    "<label>选项<%=convert_to_char (index+1).to_s %><span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label>" +
-                    "<input maxlength='200' type='text' name='question_answer[<%=exercise_choice.id %>]' placeholder='输入选项内容' value='<%=exercise_choice.choice_text %>'/>" +
-                    "<a class='icon_add' title='向下插入选项' onclick='add_single_answer($(this));'></a>" +
-                    "<a class='icon_remove'  title='删除' onclick='remove_single_answer($(this))'></a>" +
-                    "</li>" +
-                    "<div class='cl'></div>" +
-                    "<% end%>");
-        }
-    </script>
-
-    <div class="questionContainer" style="width: 680px;">
-      <div class="ur_editor_title">
-        <label>问题：&nbsp;&nbsp;</label>
-        <input name="question_type" value="<%=exercise_question.question_type %>" type="hidden">
-        <input name="question_title" id="poll_questions_title_<%=exercise_question.id %>" class="questionTitle" placeholder="请输入单选题题目" type="text" value="<%=exercise_question.question_title %>">
-      </div>
-      <div class="ur_editor_content">
-        <ul>
-          <li class="ur_item">
-            <label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-            <input type="text" id="poll_question_score_<%=exercise_question.id %>" name="question_score" style="width:40px; text-align:center; padding-left:0px;" value="<%= exercise_question.question_score %>">分
-          </li>
-          <div class="cl"></div>
-          <div id="poll_answers_<%=exercise_question.id%>">
-              <% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>
-                  <li class="ur_item">
-                    <label>选项<%=convert_to_char (index+1).to_s %><span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-                    <input maxlength="200" type='text' name='question_answer[<%=exercise_choice.id %>]' placeholder='输入选项内容' value="<%=exercise_choice.choice_text %>">
-                    <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
-                    <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-                  </li>
-                  <div class="cl"></div>
-              <% end %>
-          </div>
-          <li class="ur_item">
-            <label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-            <input id="poll_question_standard_answer_<%=exercise_question.id %>" name="exercise_choice" placeholder="若标准答案为A，在此输入A即可" type="text" value="<%=convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>">
-          </li>
-          <div class="cl"></div>
-        </ul>
-      </div>
-      <div class="ur_editor_footer">
-        <a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="edit_poll_question($(this),<%= exercise_question.id %>,1);">
-          保存
-        </a>
-        <a class="btn btn_light btn_cancel" data-button="cancel" onclick="resetQuestion<%=exercise_question.id%>();pollQuestionCancel(<%= exercise_question.id%>);">
-          <%= l(:button_cancel)%>
-        </a>
-      </div>
-      <div class="cl"></div>
-    </div>
-    <!--编辑单选 end-->
+<%= form_for("",:url => update_exercise_question_exercise_index_path(:exercise_question => exercise_question.id),:remote => true) do |f|%>
+    <!--编辑单选start-->
+    <script type="text/javascript">
+        function resetQuestion<%=exercise_question.id%>()
+        {
+            $("#poll_questions_title_<%=exercise_question.id%>").val("<%= exercise_question.question_title%>")
+            $("#poll_question_score_<%=exercise_question.id %>").val("<%= exercise_question.question_score%>")
+            $("#poll_question_standard_answer_<%=exercise_question.id %>").val("<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s)%>")
+            $("#poll_answers_<%=exercise_question.id%>").html("<% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>" +
+                    "<li class='ur_item'>" +
+                    "<label>选项<%=convert_to_char (index+1).to_s %><span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label>" +
+                    "<input maxlength='200' type='text' name='question_answer[<%=exercise_choice.id %>]' placeholder='输入选项内容' value='<%=exercise_choice.choice_text %>'/>" +
+                    "<a class='icon_add' title='向下插入选项' onclick='add_single_answer($(this));'></a>" +
+                    "<a class='icon_remove'  title='删除' onclick='remove_single_answer($(this))'></a>" +
+                    "</li>" +
+                    "<div class='cl'></div>" +
+                    "<% end%>");
+        }
+    </script>
+
+    <div class="questionContainer" style="width: 680px;">
+      <div class="ur_editor_title">
+        <label>问题：&nbsp;&nbsp;</label>
+        <input name="question_type" value="<%=exercise_question.question_type %>" type="hidden">
+        <input name="question_title" id="poll_questions_title_<%=exercise_question.id %>" class="questionTitle" placeholder="请输入单选题题目" type="text" value="<%=exercise_question.question_title %>">
+      </div>
+      <div class="ur_editor_content">
+        <ul>
+          <li class="ur_item">
+            <label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input type="text" id="poll_question_score_<%=exercise_question.id %>" name="question_score" style="width:40px; text-align:center; padding-left:0px;" value="<%= exercise_question.question_score %>">分
+          </li>
+          <div class="cl"></div>
+          <div id="poll_answers_<%=exercise_question.id%>">
+              <% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>
+                  <li class="ur_item">
+                    <label>选项<%=convert_to_char (index+1).to_s %><span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+                    <input maxlength="200" type='text' name='question_answer[<%=exercise_choice.id %>]' placeholder='输入选项内容' value="<%=exercise_choice.choice_text %>">
+                    <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+                    <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+                  </li>
+                  <div class="cl"></div>
+              <% end %>
+          </div>
+          <li class="ur_item">
+            <label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input id="poll_question_standard_answer_<%=exercise_question.id %>" name="exercise_choice" placeholder="若标准答案为A，在此输入A即可" type="text" value="<%=convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>">
+          </li>
+          <div class="cl"></div>
+        </ul>
+      </div>
+      <div class="ur_editor_footer">
+        <a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="edit_poll_question($(this),<%= exercise_question.id %>,1);">
+          保存
+        </a>
+        <a class="btn btn_light btn_cancel" data-button="cancel" onclick="resetQuestion<%=exercise_question.id%>();pollQuestionCancel(<%= exercise_question.id%>);">
+          <%= l(:button_cancel)%>
+        </a>
+      </div>
+      <div class="cl"></div>
+    </div>
+    <!--编辑单选 end-->
 <% end%>
\ No newline at end of file
diff --git a/app/views/exercise/_edit_MCQ.html.erb b/app/views/exercise/_edit_MCQ.html.erb
index 2b900d648..18ae79d1c 100644
--- a/app/views/exercise/_edit_MCQ.html.erb
+++ b/app/views/exercise/_edit_MCQ.html.erb
@@ -1,63 +1,63 @@
-<%= form_for("",:url => update_exercise_question_exercise_index_path(:exercise_question => exercise_question.id),:remote => true) do |f|%>
-    <!--编辑单选start-->
-    <script type="text/javascript">
-        function resetQuestion<%=exercise_question.id%>()
-        {
-            $("#poll_questions_title_<%=exercise_question.id%>").val("<%= exercise_question.question_title%>")
-            $("#poll_question_score_<%=exercise_question.id %>").val("<%= exercise_question.question_score%>")
-            $("#poll_question_standard_answer_<%=exercise_question.id %>").val("<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s)%>")
-            $("#poll_answers_<%=exercise_question.id%>").html("<% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>" +
-                    "<li class='ur_item'>" +
-                    "<label>选项<%=convert_to_char (index+1).to_s %><span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label>" +
-                    "<input maxlength='200' type='text' name='question_answer[<%= exercise_choice.id %>]' placeholder='输入选项内容' value='<%=exercise_choice.choice_text %>'/>" +
-                    "<a class='icon_add' title='向下插入选项' onclick='add_single_answer($(this));'></a>" +
-                    "<a class='icon_remove'  title='删除' onclick='remove_single_answer($(this))'></a>" +
-                    "</li>" +
-                    "<div class='cl'></div>" +
-                    "<% end%>");
-        }
-    </script>
-
-    <div class="questionContainer" style="width: 680px;">
-      <div class="ur_editor_title">
-        <label>问题：&nbsp;&nbsp;</label>
-        <input name="question_type" value="<%=exercise_question.question_type %>" type="hidden">
-        <input name="question_title" id="poll_questions_title_<%=exercise_question.id %>" class="questionTitle" placeholder="请输入多选题题目" type="text" value="<%=exercise_question.question_title %>">
-      </div>
-      <div class="ur_editor_content">
-        <ul>
-          <li class="ur_item">
-            <label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-            <input type="text" id="poll_question_score_<%=exercise_question.id %>" name="question_score" style="width:40px; text-align:center; padding-left:0px;" value="<%= exercise_question.question_score %>">分
-          </li>
-          <div class="cl"></div>
-          <div id="poll_answers_<%=exercise_question.id%>">
-            <% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>
-                <li class="ur_item">
-                  <label>选项<%=convert_to_char (index+1).to_s %><span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-                  <input maxlength="200" type='text' name='question_answer[<%= exercise_choice.id %>]' placeholder='输入选项内容' value="<%=exercise_choice.choice_text %>">
-                  <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
-                  <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-                </li>
-                <div class="cl"></div>
-            <% end %>
-          </div>
-          <li class="ur_item">
-            <label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-            <input id="poll_question_standard_answer_<%=exercise_question.id %>" name="exercise_choice" placeholder="若标准答案为A,B,C，在答案输入框填入ABC即可" type="text" value="<%=convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>">
-          </li>
-          <div class="cl"></div>
-        </ul>
-      </div>
-      <div class="ur_editor_footer">
-        <a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="edit_poll_question($(this),<%= exercise_question.id %>,2);">
-          保存
-        </a>
-        <a class="btn btn_light btn_cancel" data-button="cancel" onclick="resetQuestion<%=exercise_question.id%>();pollQuestionCancel(<%= exercise_question.id%>);">
-          <%= l(:button_cancel)%>
-        </a>
-      </div>
-      <div class="cl"></div>
-    </div>
-    <!--编辑单选 end-->
+<%= form_for("",:url => update_exercise_question_exercise_index_path(:exercise_question => exercise_question.id),:remote => true) do |f|%>
+    <!--编辑单选start-->
+    <script type="text/javascript">
+        function resetQuestion<%=exercise_question.id%>()
+        {
+            $("#poll_questions_title_<%=exercise_question.id%>").val("<%= exercise_question.question_title%>")
+            $("#poll_question_score_<%=exercise_question.id %>").val("<%= exercise_question.question_score%>")
+            $("#poll_question_standard_answer_<%=exercise_question.id %>").val("<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s)%>")
+            $("#poll_answers_<%=exercise_question.id%>").html("<% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>" +
+                    "<li class='ur_item'>" +
+                    "<label>选项<%=convert_to_char (index+1).to_s %><span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label>" +
+                    "<input maxlength='200' type='text' name='question_answer[<%= exercise_choice.id %>]' placeholder='输入选项内容' value='<%=exercise_choice.choice_text %>'/>" +
+                    "<a class='icon_add' title='向下插入选项' onclick='add_single_answer($(this));'></a>" +
+                    "<a class='icon_remove'  title='删除' onclick='remove_single_answer($(this))'></a>" +
+                    "</li>" +
+                    "<div class='cl'></div>" +
+                    "<% end%>");
+        }
+    </script>
+
+    <div class="questionContainer" style="width: 680px;">
+      <div class="ur_editor_title">
+        <label>问题：&nbsp;&nbsp;</label>
+        <input name="question_type" value="<%=exercise_question.question_type %>" type="hidden">
+        <input name="question_title" id="poll_questions_title_<%=exercise_question.id %>" class="questionTitle" placeholder="请输入多选题题目" type="text" value="<%=exercise_question.question_title %>">
+      </div>
+      <div class="ur_editor_content">
+        <ul>
+          <li class="ur_item">
+            <label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input type="text" id="poll_question_score_<%=exercise_question.id %>" name="question_score" style="width:40px; text-align:center; padding-left:0px;" value="<%= exercise_question.question_score %>">分
+          </li>
+          <div class="cl"></div>
+          <div id="poll_answers_<%=exercise_question.id%>">
+            <% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>
+                <li class="ur_item">
+                  <label>选项<%=convert_to_char (index+1).to_s %><span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+                  <input maxlength="200" type='text' name='question_answer[<%= exercise_choice.id %>]' placeholder='输入选项内容' value="<%=exercise_choice.choice_text %>">
+                  <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+                  <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+                </li>
+                <div class="cl"></div>
+            <% end %>
+          </div>
+          <li class="ur_item">
+            <label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input id="poll_question_standard_answer_<%=exercise_question.id %>" name="exercise_choice" placeholder="若标准答案为A,B,C，在答案输入框填入ABC即可" type="text" value="<%=convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>">
+          </li>
+          <div class="cl"></div>
+        </ul>
+      </div>
+      <div class="ur_editor_footer">
+        <a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="edit_poll_question($(this),<%= exercise_question.id %>,2);">
+          保存
+        </a>
+        <a class="btn btn_light btn_cancel" data-button="cancel" onclick="resetQuestion<%=exercise_question.id%>();pollQuestionCancel(<%= exercise_question.id%>);">
+          <%= l(:button_cancel)%>
+        </a>
+      </div>
+      <div class="cl"></div>
+    </div>
+    <!--编辑单选 end-->
 <% end%>
\ No newline at end of file
diff --git a/app/views/exercise/_edit_head.html.erb b/app/views/exercise/_edit_head.html.erb
index 3090cc2c5..c8ba0c4d7 100644
--- a/app/views/exercise/_edit_head.html.erb
+++ b/app/views/exercise/_edit_head.html.erb
@@ -3,31 +3,37 @@
       <div>
         <input name="exercise[exercise_name]" maxlength="100" id="exercise_name" class="testTitle mb10" type="text" placeholder="测验标题" value="<%=@exercise.exercise_name%>" />
       </div>
-      <%# if edit_mode %>
-      <!--<label class="fl c_grey f14" style="margin-top: 4px;">发布日期(可选)：</label>-->
-      <%# end %>
-      <div class="calendar_div fl mr10">
-        <input  type="text" name="exercise[publish_time]" id="exercise_publish_time" placeholder="发布时间" class="InputBox fl W120 calendar_input" readonly="readonly" value="<%= Time.parse(format_time(exercise.publish_time)).strftime("%Y-%m-%d") if exercise.publish_time %>"  >
-        <%= calendar_for('exercise_publish_time')%>
-      </div>
-      <%# if edit_mode %>
-      <!--<label class="fl c_grey f14" style="margin-top: 4px;">截止日期：</label>-->
-      <%# end %>
+      <label class="fl c_grey f14" style="margin-top: 4px;">截止时间：</label>
       <div class="calendar_div fl">
-        <input  type="text" name="exercise[end_time]" id="exercise_end_time" placeholder="截止时间" class="InputBox fl W120 calendar_input" readonly="readonly" value="<%= Time.parse(format_time(exercise.end_time)).strftime("%Y-%m-%d") if exercise.end_time %>"  >
+        <input  type="text" name="exercise[end_time]" id="exercise_end_time" placeholder="截止时间" class="InputBox fl W120 calendar_input" readonly="readonly" value="<%= Time.parse(format_time(exercise.end_time)).strftime("%Y-%m-%d") if exercise.end_time %>"/>
         <%= calendar_for('exercise_end_time')%>
       </div>
-      <div class="fl ml10 f14 fontGrey2"><span class="mr5">测验时长:</span><input name="exercise[time]" id="exercise_time" type="text" class="examTime mr5" value="<%=exercise.time %>" />分钟</div>
+      <div class="fl ml15 f14 fontGrey2"><span class="mr5">测验时长:</span><input name="exercise[time]" id="exercise_time" type="text" class="examTime mr5" placeholder="不填即不限时" value="<%=exercise.time if exercise.time!= -1 %>" />分钟</div>
+      <label class="fl c_grey ml15 f14" style="margin-top: 4px;">发布时间(可选)：</label>
+      <div class="calendar_div fl">
+        <input  type="text" name="exercise[publish_time]" id="exercise_publish_time" placeholder="发布时间(可选)" class="InputBox fl W120 calendar_input" readonly="readonly" value="<%= Time.parse(format_time(exercise.publish_time)).strftime("%Y-%m-%d") if !exercise.publish_time.nil? %>"/>
+        <%= calendar_for('exercise_publish_time')%>
+      </div>
       <div class="cl"></div>
       <textarea class="testDes mt10" name="exercise[exercise_description]" id="exercise_description" placeholder="发布须知：试题类型有选择和填空两种，其中选择题包括单选题和多选题。您可以在此处填写测验相关说明。" ><%=exercise.exercise_description %></textarea>
       <div class="ur_editor_footer" style="padding-top: 10px;">
         <a class="btn_submit c_white" data-button="ok" onclick="pollsSubmit($(this));">
           保存
         </a>
-        <a class="btn_cancel" data-button="cancel" onclick="pollsCancel();">
+        <a class="btn_cancel" data-button="cancel" onclick="resetHead();pollsCancel();">
           <%= l(:button_cancel)%>
         </a>
       </div>
       <div class="cl"></div>
     </div>
-<% end %>
\ No newline at end of file
+<% end %>
+<script type="text/javascript">
+    function resetHead()
+    {
+        $("#exercise_name").val("<%=@exercise.exercise_name%>");
+        $("#exercise_end_time").val("<%= Time.parse(format_time(exercise.end_time)).strftime("%Y-%m-%d") if exercise.end_time %>");
+        $("#exercise_time").val("<%=exercise.time if exercise.time!= -1 %>");
+        $("#exercise_publish_time").val("<%= Time.parse(format_time(exercise.publish_time)).strftime("%Y-%m-%d") if !exercise.publish_time.nil?%>");
+        $("#exercise_description").val("<%=exercise.exercise_description %>");
+    }
+</script>
\ No newline at end of file
diff --git a/app/views/exercise/_edit_single.html.erb b/app/views/exercise/_edit_single.html.erb
index d2e4a6f2c..0ce2f0943 100644
--- a/app/views/exercise/_edit_single.html.erb
+++ b/app/views/exercise/_edit_single.html.erb
@@ -8,7 +8,7 @@
             $("#poll_answers_<%=exercise_question.id%>").html("<% exercise_question.exercise_standard_answers.reorder("created_at").each_with_index do |exercise_choice,index| %>" +
                     "<li class='ur_item'>" +
                     "<label>候选答案<span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label>" +
-                    "<input  name='exercise_choice[<%=exercise_choice.id %>]' placeholder='请输入候选答案' type='text' value='<%=exercise_choice.answer_text %>'/>" +
+                    "<input class='candiate_answer' name='exercise_choice[<%=exercise_choice.id %>]' placeholder='请输入候选答案' type='text' value='<%=exercise_choice.answer_text %>'/>" +
 
                     "<a class='icon_add' title='向下插入选项' onclick='add_candidate_answer($(this));'></a>" +
                     "<a class='icon_remove'  title='删除' onclick='remove_single_answer($(this))'></a>" +
@@ -24,7 +24,7 @@
         <input name="question_type" value="<%=exercise_question.question_type %>" type="hidden">
         <input name="question_title" id="poll_questions_title_<%=exercise_question.id %>" class="questionTitle" placeholder="请输入填空题的内容（注意：目前填空题暂时仅支持一个空）" type="text" value="<%=exercise_question.question_title %>">
       </div>
-      <div class="ur_editor_content">
+      <div class="ur_editor_content" id="edit_single">
         <ul>
           <li class="ur_item">
             <label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
@@ -35,7 +35,7 @@
             <% exercise_question.exercise_standard_answers.reorder("created_at").each_with_index do |exercise_choice,index| %>
                 <li class="ur_item">
                   <label>候选答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-                  <input  name="exercise_choice[<%=exercise_choice.id %>]" placeholder="请输入候选答案" type="text" value="<%=exercise_choice.answer_text %>"/>
+                  <input class="candiate_answer" name="exercise_choice[<%=exercise_choice.id %>]" placeholder="请输入候选答案" type="text" value="<%=exercise_choice.answer_text %>"/>
                   <a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>
                   <a class="icon_remove" title="删除" onclick="remove_single_answer($(this));"></a>
                 </li>
diff --git a/app/views/exercise/_exercise.html.erb b/app/views/exercise/_exercise.html.erb
index f5896c5e3..db412672c 100644
--- a/app/views/exercise/_exercise.html.erb
+++ b/app/views/exercise/_exercise.html.erb
@@ -1,61 +1,60 @@
-<%# has_commit = has_commit_poll?(poll.id ,User.current)%>
-<% exercise_name = exercise.exercise_name.empty? ? l(:label_poll_new) : exercise.exercise_name%>
-<% if @is_teacher%>
-    <li title="<%= exercise.exercise_name %>">
-      <div style="width: 310px;float: left;">
-        <%# if has_commit %>
-            <%#= link_to poll_name, poll_result_poll_path(poll.id), :class => "polls_title polls_title_w fl c_dblue"%>
-        <%# else %>
-            <%#= link_to poll_name, exercise_path(poll.id), :class => "polls_title polls_title_w fl c_dblue" %>
-        <%# end %>
-        <%= link_to exercise_name, exercise_path(exercise.id), :class => "polls_title polls_title_w fl c_dblue" %>
-      </div>
-    </li>
-
-    <% if exercise.exercise_status == 1%>
-        <li class="pollsbtn fl ml10 pollsbtn_grey">统计结果</li>
-    <% else %>
-        <li><%= link_to l(:label_statistical_results), student_exercise_list_exercise_path(exercise.id,:course_id => @course.id), :class => "pollsbtn fl ml10"%></li>
-    <% end%>
-
-    <% if exercise.exercise_status == 1 %>
-        <li><a href="javascript:" class="pollsbtn btn_pu fl ml5" onclick="exercise_submit(<%= exercise.id%>,<%= exercise.exercise_name.length %>);">发布试卷</a></li>
-    <% elsif exercise.exercise_status == 2%>
-        <li><a href="javascript:" class="pollsbtn btn_de fl ml5" onclick="republish_exercise(<%= exercise.id%>);">取消发布</a></li>
-    <% else%>
-        <li class="pollsbtn fl ml10 pollsbtn_grey" style="margin-left: 5px;" >发布试卷</li>
-    <% end%>
-
-    <%= link_to(l(:button_delete), exercise,:method => :delete, :confirm => l(:text_are_you_sure), :remote => true, :class => "polls_de fr ml5 mr10")  %>
-
-    <% if exercise.exercise_status == 1 %>
-        <li><%= link_to l(:button_edit), edit_exercise_path(exercise.id), :class => "polls_de fr ml5"%></li>
-    <% else%>
-        <li class="polls_de_grey fr ml5" title="未发布的试卷才能进行编辑">编辑</li>
-    <% end%>
-
-    <%# if exercise.exercise_status == 2 %>
-        <!--<li><a class="polls_de fr ml5" onclick="" href="javascript:">关闭</a></li>-->
-    <%# else %>
-        <!--<li class="polls_de_grey fr ml5" title="发布的问卷才能进行关闭">关闭</li>-->
-    <%# end%>
-
-    <%# if exercise.exercise_status == 1%>
-        <!--<li class="polls_de_grey fr ml5">导出</li>-->
-    <%# elsif exercise.exercise_status == 2 || exercise.exercise_status == 3 %>
-        <!--<li><%#= link_to "导出", export_exercise_exercise_path(exercise.id,:format => "xls"), :class => "polls_de fr ml5"%></li>-->
-    <%# end%>
-
-
-    <li class="polls_date fr"><%= format_date exercise.created_at.to_date%></li>
-<% else%>
-    <% if exercise.exercise_status == 2%>
-        <%# if has_commit%>
-            <!--li><%#= link_to poll_name, poll_result_poll_path(poll.id), :class => "polls_title polls_title_st fl c_dblue" %></li>
-            <li class="pollsbtn_tip fl ml5">已答</li-->
-        <%#else%>
-            <%= link_to exercise_name, exercise_path(exercise.id), :class => "polls_title polls_title_st fl c_dblue"%>
-        <%#end%>
-    <% end%>
-    <li class="polls_date fr mr10"><%= format_date exercise.created_at.to_date%></li>
+<%# has_commit = has_commit_poll?(poll.id ,User.current)%>
+<% exercise_name = exercise.exercise_name.empty? ? l(:label_poll_new) : exercise.exercise_name%>
+<% if @is_teacher%>
+    <li title="<%= exercise.exercise_name %>">
+      <div style="width: 310px;float: left;">
+        <%# if has_commit %>
+            <%#= link_to poll_name, poll_result_poll_path(poll.id), :class => "polls_title polls_title_w fl c_dblue"%>
+        <%# else %>
+            <%#= link_to poll_name, exercise_path(poll.id), :class => "polls_title polls_title_w fl c_dblue" %>
+        <%# end %>
+        <%= link_to (index.to_i+1).to_s+". "+exercise_name, exercise_path(exercise.id), :class => "polls_title polls_title_w fl c_dblue" %>
+      </div>
+    </li>
+
+    <%# if exercise.exercise_status == 2 %>
+        <!--<li><a class="polls_de fr ml5" onclick="" href="javascript:">关闭</a></li>-->
+    <%# else %>
+        <!--<li class="polls_de_grey fr ml5" title="发布的问卷才能进行关闭">关闭</li>-->
+    <%# end%>
+
+    <%# if exercise.exercise_status == 1%>
+        <!--<li class="polls_de_grey fr ml5">导出</li>-->
+    <%# elsif exercise.exercise_status == 2 || exercise.exercise_status == 3 %>
+        <!--<li><%#= link_to "导出", export_exercise_exercise_path(exercise.id,:format => "xls"), :class => "polls_de fr ml5"%></li>-->
+    <%# end%>
+    <% if exercise.exercise_status == 1 %>
+        <li><a href="javascript:" class="pollsbtn btn_pu fr mr5" onclick="exercise_submit(<%= exercise.id%>,<%= exercise.exercise_name.length %>,<%=index.to_i %>);">发布试卷</a></li>
+    <% elsif exercise.exercise_status == 2%>
+        <li><a href="javascript:" class="pollsbtn btn_de fr mr5" onclick="republish_exercise(<%= exercise.id%>,<%=index.to_i %>);">取消发布</a></li>
+    <% else%>
+        <li class="pollsbtn fr mr10 pollsbtn_grey" style="margin-left: 5px;" >发布试卷</li>
+    <% end%>
+
+    <% if exercise.exercise_status == 1%>
+        <li class="pollsbtn fr mr10 pollsbtn_grey">统计结果</li>
+    <% else %>
+        <li><%= link_to l(:label_statistical_results), student_exercise_list_exercise_path(exercise.id,:course_id => @course.id), :class => "pollsbtn fr mr10"%></li>
+    <% end%>
+
+    <%= link_to(l(:button_delete), exercise,:method => :delete, :confirm => l(:text_are_you_sure), :remote => true, :class => "polls_de fr ml5 mr10")  %>
+
+    <% if exercise.exercise_status == 1 %>
+        <li><%= link_to l(:button_edit), edit_exercise_path(exercise.id), :class => "polls_de fr ml10"%></li>
+        <li class="polls_date fr"><%=exercise.publish_time.nil? ? "未发布" : "将于"+format_time(exercise.publish_time.to_s)+"发布"%></li>
+    <% else%>
+        <li class="polls_de_grey fr ml10" title="未发布的试卷才能进行编辑">编辑</li>
+        <li class="polls_date fr">已发布</li>
+    <% end%>
+
+<% else%>
+    <% if exercise.exercise_status == 2%>
+        <%# if has_commit%>
+            <!--li><%#= link_to poll_name, poll_result_poll_path(poll.id), :class => "polls_title polls_title_st fl c_dblue" %></li>
+            <li class="pollsbtn_tip fl ml5">已答</li-->
+        <%#else%>
+            <%= link_to (index.to_i+1).to_s+". "+exercise_name, exercise_path(exercise.id), :class => "polls_title polls_title_st fl c_dblue"%>
+        <%#end%>
+    <% end%>
+    <li class="polls_date fr mr10">截止时间：<%= format_time(exercise.end_time.to_s)%></li>
 <% end%>
\ No newline at end of file
diff --git a/app/views/exercise/_exercise_form.html.erb b/app/views/exercise/_exercise_form.html.erb
index 1f415886f..e283f8b0c 100644
--- a/app/views/exercise/_exercise_form.html.erb
+++ b/app/views/exercise/_exercise_form.html.erb
@@ -1,194 +1,219 @@
-<%= stylesheet_link_tag  'polls', :media => 'all' %>
-<script type="text/javascript">
-    $(function(){
-        $("#RSide").removeAttr("id");
-        $("#homework_page_right").css("min-height",$("#LSide").height()-30);
-        $("#Container").css("width","1000px");
-    });
-    //编辑问卷描述之后
-    var popWindow ; //弹出框的引用
-    var importPollPopWindow; //选择导入的弹出框引用
-    function edit_head(){
-        $("#polls_description").val($("#polls_description_div").html());
-    }
-    $(function(){
-        //点击空白处
-        $(document).bind('click',function(e){
-            //弹出框非空 不是a标签 点击的不是弹出框 ，那么弹出框就会隐藏
-            if(popWindow && e.target.nodeName != 'A' && !popWindow.is(e.target) && popWindow.has(e.target).length === 0){ // Mark 1
-                popWindow.css('display', 'none');
-            }
-            if(importPollPopWindow && e.target.nodeName != 'A' && !importPollPopWindow.is(e.target) && importPollPopWindow.has(e.target).length === 0){
-                importPollPopWindow.css('display', 'none');
-            }
-        });
-    })
-
-    function dismiss(quest_type,quest_id){
-        popWindow = $("#div_"+quest_type+"_"+quest_id);
-        if(popWindow){
-            popWindow.css('display', 'none');
-        }
-    }
-
-    function chooseQuestionType(quest_type,quest_id){
-        //quest_type 分为 mc mcq single multi
-        //quest_id 是quetion的id  下同
-        if(popWindow){
-            popWindow.css('display', 'none');
-        }
-        popWindow = $("#div_"+quest_type+"_"+quest_id);
-        $("#div_"+quest_type+"_"+quest_id).click(function(e){
-            e.stopPropagation(); //组织冒泡到document.body中去
-        });
-        $("#div_"+quest_type+"_"+quest_id).css("position", "absolute");
-
-        $("#div_"+quest_type+"_"+quest_id).css("top", $("#add_"+quest_type+"_"+quest_id).offset().top+30);
-
-        $("#div_"+quest_type+"_"+quest_id).css("left", $("#add_"+quest_type+"_"+quest_id).offset().left-10);
-        if( $("#div_"+quest_type+"_"+quest_id).css('display') == 'block') {
-            $("#div_"+quest_type+"_"+quest_id).css('display', 'none');
-        }
-        else{
-            $("#div_"+quest_type+"_"+quest_id).css('display', 'block');
-        }
-    }
-
-    //选择导入调查问卷
-    function importPoll(){
-        importPollPopWindow = $("#import_poll");
-        $("#import_poll").css("position", "absolute");
-
-        $("#import_poll").css("top", $("#import_btn").offset().top+30);
-
-        $("#import_poll").css("left", $("#import_btn").offset().left-65);
-        $("#import_poll").css("display","block")
-    }
-
-    function remote_import(){
-        importPollPopWindow.css('display', 'none');
-        if($("#import_poll").val() === 0){
-            return;
-        }else{
-            if(confirm("确认导入问卷"+$("#import_poll").find("option:selected").text()+"?")){
-                $("#import_form").submit();
-            }else{
-                return;
-            }
-        }
-
-    }
-
-    //添加标题时确定按钮
-    function add_poll_question(doc,quest_type)
-    {
-        var title = $.trim($("#poll_questions_title").val());
-        var score = $.trim($("#question_score").val());
-        var standard_ans = $.trim($("#question_standard_ans").val());
-        if(title.length == 0 || score.length == 0){
-            alert("题目标题/分数不能为空");
-        }else if(quest_type !=3 && standard_ans.length == 0) {
-            alert("标准答案不能为空");
-        }else{
-            doc.parent().parent().parent().submit();}
-    }
-    //修改标题时确定按钮
-    function edit_poll_question(doc,id,quest_type)
-    {
-        var title = $.trim($("#poll_questions_title_" + id).val());
-        var score = $.trim($("#poll_question_score_"+ id).val());
-        var standard_ans = $.trim($("#poll_question_standard_answer_" + id).val());
-        if(title.length == 0 || score.length == 0){
-            alert("题目标题/分数不能为空");
-        }else if(quest_type !=3 && standard_ans.length == 0) {
-            alert("标准答案不能为空");
-        }else{
-            doc.parent().parent().parent().submit();}
-    }
-
-    //问卷头
-    function pollsCancel(){$("#polls_head_edit").hide();$("#polls_head_show").show();}
-    function pollsSubmit(doc){
-        var title = $.trim($("#exercise_name").val());
-        if(title.length == 0){
-            alert("测验标题不能为空");
-        } else if($.trim($("#exercise_publish_time").val()) =="") {
-            alert("发布时间不能为空");
-        } else if($.trim($("#exercise_end_time").val()) =="") {
-            alert("截止时间不能为空");
-        } else if($.trim($("#exercise_time").val()) =="") {
-            alert("考试时长不能为空");
-        } else if(Date.parse($("#exercise_end_time").val()) <= Date.parse($("#exercise_publish_time").val())) {
-            alert("截止时间必须大于发布时间");
-        }
-        else {
-            doc.parent().parent().parent().submit();
-        }
-    }
-    function pollsEdit(){$("#polls_head_edit").show();$("#polls_head_show").hide();}
-    //
-    function pollQuestionCancel(question_id){
-        $("#show_poll_questions_"+question_id).show();
-        $("#edit_poll_questions_"+question_id).hide();
-    }
-    function pollQuestionEdit(question_id){
-        $("#show_poll_questions_"+question_id).hide();
-        $("#edit_poll_questions_"+question_id).show();
-        $("#poll_questions_title_"+question_id).focus();
-    }
-    //单选题
-    function add_single_answer(doc)
-    {
-        doc.parent().after("<li class='ur_item'><label>选项<span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label><input maxlength='200' type='text' name='question_answer["+new Date().getTime()+"]' placeholder='输入选项内容'/>" +
-                "<a class='icon_add' title='向下插入选项' onclick='add_single_answer($(this));'></a><a class='icon_remove'  title='删除' onclick='remove_single_answer($(this))'></a>"+
-                "</li><div class='cl'></div>");
-    }
-    function add_candidate_answer(doc)
-    {
-        doc.parent().after("<li class='ur_item'><label>候选答案<span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label><input maxlength='200' type='text' name='exercise_choice["+new Date().getTime()+"]' placeholder='请输入候选答案（选填）'/>" +
-                "<a class='icon_add' title='向下插入选项' onclick='add_candidate_answer($(this));'></a><a class='icon_remove'  title='删除' onclick='remove_single_answer($(this))'></a>"+
-                "</li><div class='cl'></div>");
-    }
-    function remove_single_answer(doc)
-    {
-        if(doc.parent().siblings("li").length == 0)
-        {
-            alert("选择题至少有一个选项");
-        }
-        else
-        {
-            doc.parent().remove();
-        }
-    }
-</script>
-<div class="homepageRight mt0 ml10">
-<div class="resources">
-  <!-- 头部 -->
-  <div id="polls_head_show"  style="display: none;">
-    <%= render :partial => 'show_head', :locals => {:exercise => @exercise}%>
-  </div>
-  <div id="polls_head_edit">
-    <%= render :partial => 'edit_head', :locals => {:exercise => @exercise}%>
-  </div>
-  <% current_score = get_current_score @exercise %>
-  <div class="mb5" style="display: <%= current_score == 0 ? "none" : "" %>" id="current_score_div">目前试卷总分：<span class="c_red" id="current_score"><%=current_score %>分</span></div>
-  <!-- 问题 -->
-  <div id="poll_content">
-    <%= render :partial => 'exercise_content', :locals => {:exercise => @exercise}%>
-  </div>
-
-  <div class="testQuestion" id="new_exercise_question">
-    <%= render :partial => 'new_question', :locals => {:exercise => @exercise} %>
-  </div><!--选项 end-->
-
-  <!-- 新增问题 -->
-  <div id="new_poll_question">
-  </div>
-
-  <div id="exercise_submit">
-    <%= render :partial => 'exercise_submit', :locals => {:exercise => @exercise} %>
-  </div>
-  <div class="cl"></div>
-  <!--contentbox end-->
-</div>
-</div><!--编辑end-->
+<%= stylesheet_link_tag  'polls', :media => 'all' %>
+<script type="text/javascript">
+    $(function(){
+        $("#RSide").removeAttr("id");
+        $("#homework_page_right").css("min-height",$("#LSide").height()-30);
+        $("#Container").css("width","1000px");
+    });
+    //编辑问卷描述之后
+    var popWindow ; //弹出框的引用
+    var importPollPopWindow; //选择导入的弹出框引用
+    function edit_head(){
+        $("#polls_description").val($("#polls_description_div").html());
+    }
+    $(function(){
+        //点击空白处
+        $(document).bind('click',function(e){
+            //弹出框非空 不是a标签 点击的不是弹出框 ，那么弹出框就会隐藏
+            if(popWindow && e.target.nodeName != 'A' && !popWindow.is(e.target) && popWindow.has(e.target).length === 0){ // Mark 1
+                popWindow.css('display', 'none');
+            }
+            if(importPollPopWindow && e.target.nodeName != 'A' && !importPollPopWindow.is(e.target) && importPollPopWindow.has(e.target).length === 0){
+                importPollPopWindow.css('display', 'none');
+            }
+        });
+    })
+
+    function dismiss(quest_type,quest_id){
+        popWindow = $("#div_"+quest_type+"_"+quest_id);
+        if(popWindow){
+            popWindow.css('display', 'none');
+        }
+    }
+
+    function chooseQuestionType(quest_type,quest_id){
+        //quest_type 分为 mc mcq single multi
+        //quest_id 是quetion的id  下同
+        if(popWindow){
+            popWindow.css('display', 'none');
+        }
+        popWindow = $("#div_"+quest_type+"_"+quest_id);
+        $("#div_"+quest_type+"_"+quest_id).click(function(e){
+            e.stopPropagation(); //组织冒泡到document.body中去
+        });
+        $("#div_"+quest_type+"_"+quest_id).css("position", "absolute");
+
+        $("#div_"+quest_type+"_"+quest_id).css("top", $("#add_"+quest_type+"_"+quest_id).offset().top+30);
+
+        $("#div_"+quest_type+"_"+quest_id).css("left", $("#add_"+quest_type+"_"+quest_id).offset().left-10);
+        if( $("#div_"+quest_type+"_"+quest_id).css('display') == 'block') {
+            $("#div_"+quest_type+"_"+quest_id).css('display', 'none');
+        }
+        else{
+            $("#div_"+quest_type+"_"+quest_id).css('display', 'block');
+        }
+    }
+
+    //选择导入调查问卷
+    function importPoll(){
+        importPollPopWindow = $("#import_poll");
+        $("#import_poll").css("position", "absolute");
+
+        $("#import_poll").css("top", $("#import_btn").offset().top+30);
+
+        $("#import_poll").css("left", $("#import_btn").offset().left-65);
+        $("#import_poll").css("display","block")
+    }
+
+    function remote_import(){
+        importPollPopWindow.css('display', 'none');
+        if($("#import_poll").val() === 0){
+            return;
+        }else{
+            if(confirm("确认导入问卷"+$("#import_poll").find("option:selected").text()+"?")){
+                $("#import_form").submit();
+            }else{
+                return;
+            }
+        }
+
+    }
+
+    //添加标题时确定按钮
+    function add_poll_question(doc,quest_type)
+    {
+        var title = $.trim($("#poll_questions_title").val());
+        var score = $.trim($("#question_score").val());
+        var standard_ans = $.trim($("#question_standard_ans").val());
+        if(title.length == 0 || score.length == 0){
+            alert("题目标题/分数不能为空");
+        }else if(!/^[1-9][0-9]*$/.test(score)) {
+            alert("分数必须是非零开头的数字");
+        }else if(quest_type !=3 && standard_ans.length == 0) {
+            alert("标准答案不能为空");
+        }else{
+            doc.parent().parent().parent().submit();}
+    }
+    //修改标题时确定按钮
+    function edit_poll_question(doc,id,quest_type)
+    {
+        var title = $.trim($("#poll_questions_title_" + id).val());
+        var score = $.trim($("#poll_question_score_"+ id).val());
+        var standard_ans = $.trim($("#poll_question_standard_answer_" + id).val());
+        if(title.length == 0 || score.length == 0){
+            alert("题目标题/分数不能为空");
+        }else if(!/^[1-9][0-9]*$/.test(score)) {
+            alert("分数必须是非零开头的数字");
+        }else if(quest_type !=3 && standard_ans.length == 0) {
+            alert("标准答案不能为空");
+        }else if(quest_type ==3) {
+            var div = $("#poll_answers_" + id);
+            var candiate_answer = $(".candiate_answer",div);
+            if(candiate_answer.length > 0) {
+                for(i=0;i<candiate_answer.length;i++) {
+                    if(i<candiate_answer.length-1 && $.trim($(candiate_answer[i]).val()) == "") {
+                        continue;
+                    } else if(i == (candiate_answer.length-1) && $.trim($(candiate_answer[i]).val()) == "") {
+                        alert("候选答案不能为空");
+                    } else if($.trim($(candiate_answer[i]).val()) != ""){
+                        doc.parent().parent().parent().submit();
+                        break;
+                    }
+
+                }
+            } else{
+                alert("候选答案不能为空");
+            }
+        }else{
+            doc.parent().parent().parent().submit();}
+    }
+
+    //问卷头
+    function pollsCancel(){$("#polls_head_edit").hide();$("#polls_head_show").show();}
+    function pollsSubmit(doc){
+        var title = $.trim($("#exercise_name").val());
+        if(title.length == 0){
+            alert("测验标题不能为空");
+        } else if($.trim($("#exercise_end_time").val()) =="") {
+            alert("截止时间不能为空");
+        } else if((Date.parse($("#exercise_end_time").val())+(24*60*60-1)*1000) < Date.now()) {
+            alert("截止时间不能小于当前时间");
+        } else if($.trim($("#exercise_time").val()) !="" && !/^[1-9][0-9]*$/.test($.trim($("#exercise_time").val()))) {
+            alert("测验时长必须为非零开头的数字");
+        } else if($.trim($("#exercise_publish_time").val()) !="" && Date.parse($("#exercise_publish_time").val()) < Date.now()) {
+            alert("发布时间不能小于当前时间");
+        } else if($.trim($("#exercise_publish_time").val()) !="" && Date.parse($("#exercise_end_time").val()) < Date.parse($("#exercise_publish_time").val())) {
+            alert("截止时间不能小于发布时间");
+        } else {
+            doc.parent().parent().parent().submit();
+        }
+    }
+    function pollsEdit(){$("#polls_head_edit").show();$("#polls_head_show").hide();}
+    //
+    function pollQuestionCancel(question_id){
+        $("#show_poll_questions_"+question_id).show();
+        $("#edit_poll_questions_"+question_id).hide();
+    }
+    function pollQuestionEdit(question_id){
+        $("#show_poll_questions_"+question_id).hide();
+        $("#edit_poll_questions_"+question_id).show();
+        $("#poll_questions_title_"+question_id).focus();
+    }
+    //单选题
+    function add_single_answer(doc)
+    {
+        doc.parent().after("<li class='ur_item'><label>选项<span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label><input maxlength='200' type='text' name='question_answer["+new Date().getTime()+"]' placeholder='输入选项内容'/>" +
+                "<a class='icon_add' title='向下插入选项' onclick='add_single_answer($(this));'></a><a class='icon_remove'  title='删除' onclick='remove_single_answer($(this))'></a>"+
+                "</li><div class='cl'></div>");
+    }
+    function add_candidate_answer(doc)
+    {
+        doc.parent().after("<li class='ur_item'><label>候选答案<span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label><input maxlength='200' type='text' name='exercise_choice["+new Date().getTime()+"]' placeholder='请输入候选答案（选填）'/>" +
+                "<a class='icon_add' title='向下插入选项' onclick='add_candidate_answer($(this));'></a><a class='icon_remove'  title='删除' onclick='remove_single_answer($(this))'></a>"+
+                "</li><div class='cl'></div>");
+    }
+    function remove_single_answer(doc)
+    {
+        if(doc.parent().siblings("li").length == 0)
+        {
+            alert("至少有一个选项或一个候选答案");
+        }
+        else
+        {
+            doc.parent().remove();
+        }
+    }
+</script>
+<div class="homepageRight mt0 ml10">
+  <div class="resources">
+    <!-- 头部 -->
+    <div id="polls_head_show" style="display: none;">
+      <%= render :partial => 'show_head', :locals => {:exercise => @exercise} %>
+    </div>
+    <div id="polls_head_edit">
+      <%= render :partial => 'edit_head', :locals => {:exercise => @exercise} %>
+    </div>
+    <% current_score = get_current_score @exercise %>
+    <div class="mb5" style="display: <%= current_score == 0 ? "none" : "" %>" id="current_score_div">目前试卷总分：<span class="c_red" id="current_score"><%= current_score %>
+      分</span></div>
+    <!-- 问题 -->
+    <div id="poll_content">
+      <%= render :partial => 'exercise_content', :locals => {:exercise => @exercise} %>
+    </div>
+
+    <div class="testQuestion" id="new_exercise_question">
+      <%= render :partial => 'new_question', :locals => {:exercise => @exercise} %>
+    </div>
+    <!--选项 end-->
+
+    <!-- 新增问题 -->
+    <div id="new_poll_question">
+    </div>
+
+    <div id="exercise_submit">
+      <%= render :partial => 'exercise_submit', :locals => {:exercise => @exercise} %>
+    </div>
+    <div class="cl"></div>
+    <!--contentbox end-->
+  </div>
+</div><!--编辑end-->
diff --git a/app/views/exercise/_exercise_student.html.erb b/app/views/exercise/_exercise_student.html.erb
index 45d6ccf70..adaab5021 100644
--- a/app/views/exercise/_exercise_student.html.erb
+++ b/app/views/exercise/_exercise_student.html.erb
@@ -3,6 +3,12 @@
         $("#RSide").removeAttr("id");
         $("#homework_page_right").css("min-height",$("#LSide").height()-30);
         $("#Container").css("width","1000px");
+        <%uncomplete_question =get_uncomplete_question(exercise, User.current) %>;
+        <% if (uncomplete_question.count < 1) %>
+            $("#exercise_submit_btn").html("提交");
+        <% end %>
+        var end_time = <%=exercise.end_time.to_i%>;
+        getTime(end_time);
         /*start_time = new Date();
         start_time.setFullYear(<%#=exercise_user.start_at.year%>);
         start_time.setMonth(<%#=exercise_user.start_at.month%>);
@@ -17,11 +23,16 @@
     function getTime(end_time) {
         //alert(end_time);
         now = new Date();
-        var total_seconds = (now.getTime() - end_time)/1000;
+        var total_seconds = now.getTime()/1000 - end_time;
+        if (total_seconds > 0) {
+            $("#exercise_submit_btn").click();
+            return;
+        }
+        setTimeout("getTime("+end_time+");", 1000);
         //start = new Date(start_time);
         //end_time = start_time;
         //var total_seconds = total_seconds - 1;
-        var hours = total_seconds / 60 / 60;
+        /*var hours = total_seconds / 60 / 60;
         var hoursRound = Math.floor(hours);
         var minutes = total_seconds /60 - (60 * hoursRound);
         var minutesRound = Math.floor(minutes);
@@ -29,9 +40,9 @@
         var secondsRound = Math.round(seconds);
         $("#rest_hours").html(hoursRound);
         $("#rest_minutes").html(minutesRound);
-        $("#rest_seconds").html(secondsRound);
+        $("#rest_seconds").html(secondsRound);*/
         //if(total_seconds >0) {
-            setTimeout("getTime("+end_time+");", 1000);
+            //setTimeout("getTime("+end_time+");", 1000);
         //}
     }
 </script>
@@ -41,8 +52,11 @@
       <h1 class="ur_page_title" id="polls_name_h"><%= exercise.exercise_name%></h1>
       <div id="start_time" style="display: none"><%=exercise_user.start_at %></div>
       <div class="fontGrey2">
-        <span class="mr130">开始时间：<%=format_time(exercise_user.start_at.to_s)%></span>
-        <span class="mr130">测验时长：<%=exercise.time %>分钟</span>
+        <span class="mr100">开始时间：<%=Time.parse(h(exercise_user.start_at)).strftime("%Y-%m-%d %H:%M:%S")%></span>
+        <span class="mr100">截止时间：<%=Time.parse(h(exercise.end_time)).strftime("%Y-%m-%d %H:%M:%S")%></span>
+        <% unless exercise.time == -1 %>
+            <span class="fr">测验时长：<%=exercise.time %>分钟</span>
+        <% end %>
 <!--
         <span class="fr">剩余时长：<span class="c_red" id="rest_hours"></span>&nbsp;小时&nbsp;<span class="c_red" id="rest_minutes"></span>&nbsp;分钟&nbsp;<span class="c_red" id="rest_seconds"></span>&nbsp;秒</span>
 -->
@@ -90,6 +104,11 @@
                                               {
                                                   obj.checked = false;
                                               }
+                                              if(dataObj.complete == 1) {
+                                                  $("#exercise_submit_btn").html("提交");
+                                              } else {
+                                                  $("#exercise_submit_btn").html("保存");
+                                              }
                                           }
                                       });
                                   }
@@ -144,6 +163,11 @@
                                               {
                                                   obj.checked = false;
                                               }
+                                              if(dataObj.complete == 1) {
+                                                  $("#exercise_submit_btn").html("提交");
+                                              } else {
+                                                  $("#exercise_submit_btn").html("保存");
+                                              }
                                           }
                                       });
                                   }
@@ -186,12 +210,17 @@
                               success: function (data) {
                                   var dataObj = eval(data);
                                   obj.value = dataObj.text;
+                                  if(dataObj.complete == 1) {
+                                      $("#exercise_submit_btn").html("提交");
+                                  } else {
+                                      $("#exercise_submit_btn").html("保存");
+                                  }
                               }
                           });
 
                       }
                   </script>
-                  <input class="fillInput" placeholder="在此填入答案" type="text" value="" onblur="onblur_<%= exercise_question.id %>(this);" <%= @can_edit_excercise?"":"disabled=disabled" %>>
+                  <input class="fillInput" placeholder="在此填入答案" type="text" value="<%= get_anwser_vote_text(exercise_question.id,User.current.id).html_safe %>" onblur="onblur_<%= exercise_question.id %>(this);" <%= @can_edit_excercise?"":"disabled=disabled" %>>
                 </div>
               </div>
             </div>
@@ -199,7 +228,7 @@
       <% end %>
     </div>
     <div class="ur_buttons">
-      <%= link_to l(:button_submit),commit_exercise_exercise_path(exercise), :method => :post,:class => "ur_button_submit",:style => "margin-left:80px;",:format => 'js',:remote=>true %>
+      <%= link_to "保存",commit_exercise_exercise_path(exercise),:id=>"exercise_submit_btn", :method => :post,:class => "ur_button_submit",:style => "margin-left:80px;",:format => 'js',:remote=>true %>
     </div>
     <div class="cl"></div>
     <!--contentbox end-->
diff --git a/app/views/exercise/_exercise_student_result.html.erb b/app/views/exercise/_exercise_student_result.html.erb
index b9306b0d2..93e52b0a1 100644
--- a/app/views/exercise/_exercise_student_result.html.erb
+++ b/app/views/exercise/_exercise_student_result.html.erb
@@ -10,8 +10,11 @@
     <div class="testStatus"><!--头部显示 start-->
       <h1 class="ur_page_title" id="polls_name_h"><%= exercise.exercise_name%></h1>
       <div class="fontGrey2">
-        <span class="mr130">开始时间：<%=format_time(exercise_user.start_at.to_s) %></span>
-        <span class="mr130">测验时长：<%=exercise.time %>分钟</span>
+        <span class="mr100">开始时间：<%=Time.parse(h(exercise_user.start_at)).strftime("%Y-%m-%d %H:%M:%S") %></span>
+        <span class="mr100">截止时间：<%=Time.parse(h(exercise.end_time)).strftime("%Y-%m-%d %H:%M:%S")%></span>
+        <% unless exercise.time == -1 %>
+            <span class="fr">测验时长：<%=exercise.time %>分钟</span>
+        <% end %>
         <%# time = exercise_user.end_at - exercise_user.start_at %>
         </div>
       <div class="testDesEdit mt5"><%= exercise.exercise_description.nil? ? "" : exercise.exercise_description.html_safe%></div>
@@ -31,12 +34,12 @@
                   <span class="ml15 c_red">
                     <% answer = get_user_answer(exercise_question, User.current)%>
                     <% standard_answer = get_user_standard_answer(exercise_question, User.current)%>
-                    <% if answer.first.exercise_choice.choice_position == standard_answer.first.exercise_choice_id %>
+                    <% if !answer.empty? && !standard_answer.empty? && answer.first.exercise_choice.choice_position == standard_answer.first.exercise_choice_id %>
                         √
                     <% else %>
                         ×
                     <% end %></span><br />
-                  标准答案：<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>
+                  标准答案：<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) if exercise_question.exercise_standard_answers.first %>
                 </div>
                 <div class="cl"></div>
                 <div class="ur_inputs">
@@ -70,7 +73,7 @@
                   <span class="ml15 c_red">
                     <% answer = get_user_answer(exercise_question, User.current)%>
                     <% standard_answer = get_user_standard_answer(exercise_question, User.current)%>
-                    <% if get_mulscore(exercise_question, User.current).to_i == standard_answer.first.exercise_choice_id %>
+                    <% if !standard_answer.empty? && get_mulscore(exercise_question, User.current).to_i == standard_answer.first.exercise_choice_id %>
                         √
                     <% else %>
                         ×
@@ -109,12 +112,12 @@
                   <span class="ml15 c_red">
                     <% answer = get_user_answer(exercise_question, User.current)%>
                     <% standard_answer = get_user_standard_answer(exercise_question, User.current)%>
-                    <% if standard_answer.include?(answer.first.answer_text) %>
+                    <% if !answer.empty? && !standard_answer.empty? && standard_answer.include?(answer.first.answer_text) %>
                         √
                     <% else %>
                         ×
                     <% end %></span><br />
-                  标准答案：<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>
+                  标准答案：<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) if exercise_question.exercise_standard_answers.first %>
                 </div>
                 <div class="cl"></div>
                 <div>
diff --git a/app/views/exercise/_exercise_submit_info.html.erb b/app/views/exercise/_exercise_submit_info.html.erb
index 0d7e8928c..0744b4fd1 100644
--- a/app/views/exercise/_exercise_submit_info.html.erb
+++ b/app/views/exercise/_exercise_submit_info.html.erb
@@ -19,14 +19,9 @@
       <% mc_count = exercise.exercise_questions.where("question_type=1").count %>
       <% mcq_count = exercise.exercise_questions.where("question_type=2").count %>
       <% single_count = exercise.exercise_questions.where("question_type=3").count %>
-      <p class="f14">当前测验
-        <% if question_count > 0 %>共有<%= question_count %>道题，其中<% end %>
-        <% if mc_count > 0 %><%= mc_count %>道单选、<% end %>
-        <% if mcq_count > 0 %><%= mcq_count %>道多选、<% end %>
-        <% if single_count > 0%><%= single_count %>道填空,<% end %>
-        总分为<span class="c_red"><%=current_score %></span>分。
+      <p class="f14">当前测验<%if question_count >0%>共有<%= question_count %>道题，其中<%end%><%if mc_count > 0%><%=mc_count %>道单选、<%end%><%if mcq_count > 0%><%=mcq_count %>道多选、<%end%><%if single_count > 0%><%=single_count %>道填空，<%end%>总分为<span class="c_red"><%=current_score %></span>分。
         <br /><br />
-        是否确定提交该测验？
+        <% if exercise.publish_time.nil? %>点击提交后测验将立即发布，<% end %>是否确定提交该测验？
       </p>
       <div class="polls_btn_box">
         <a class="upload_btn" onclick="exercise_submit();">
diff --git a/app/views/exercise/_exercise_teacher.html.erb b/app/views/exercise/_exercise_teacher.html.erb
index a3f6380cf..24687d28b 100644
--- a/app/views/exercise/_exercise_teacher.html.erb
+++ b/app/views/exercise/_exercise_teacher.html.erb
@@ -10,9 +10,13 @@
     <div class="testStatus"><!--头部显示 start-->
       <h1 class="ur_page_title" id="polls_name_h"><%= exercise.exercise_name%></h1>
       <div class="fontGrey2">
-        <span class="mr130">发布时间：<%=format_time(exercise.publish_time.to_s) %></span>
-        <span class="mr130">截止时间：<%=format_time(exercise.end_time.to_s) %></span>
-        <span class="fr">测验时长：<%=exercise.time %>分钟</span>
+        <% unless exercise.publish_time.nil? %>
+            <span class="mr100">发布时间：<%=Time.parse(h(exercise.publish_time)).strftime("%Y-%m-%d %H:%M:%S") %></span>
+        <% end %>
+        <span class="mr100">截止时间：<%=Time.parse(h(exercise.end_time)).strftime("%Y-%m-%d %H:%M:%S") %></span>
+        <% if exercise.time != -1 %>
+            <span class="fr">测验时长：<%=exercise.time %>分钟</span>
+        <% end %>
       </div>
       <div class="testDesEdit mt5"><%= exercise.exercise_description.nil? ? "" : exercise.exercise_description.html_safe%></div>
       <div class="cl"></div>
@@ -92,7 +96,7 @@
               <div>
                 <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
                   <br />
-                  标准答案：<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>
+                  标准答案：<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) if exercise_question.exercise_standard_answers.first%>
                 </div>
                 <div class="cl"></div>
                 <div>
diff --git a/app/views/exercise/_exercises_list.html.erb b/app/views/exercise/_exercises_list.html.erb
index d1774f637..89964f032 100644
--- a/app/views/exercise/_exercises_list.html.erb
+++ b/app/views/exercise/_exercises_list.html.erb
@@ -1,25 +1,25 @@
-<div class="polls_head">
-  <h2>所有试卷
-    <span>（<%= @obj_count%>）</span>
-  </h2>
-  <% if @is_teacher%>
-      <%#= link_to "导入", other_poll_poll_index_path(:polls_group_id => @course.id), :remote=>true,:class => "newbtn"%>
-      <%= link_to "新建试卷 ", new_exercise_path(:course_id => @course.id), :class => "newbtn" %>
-  <% end%>
-</div>
-<div class="cl"></div>
-<div id="polls_list" class="polls_list">
-
-  <% @exercises.each do |exercise|%>
-      <ul id="exercises_<%= exercise.id %>" class="polls_list_ul">
-        <%= render :partial => 'exercise', :locals => {:exercise => exercise} %>
-      </ul>
-      <div class="cl"></div>
-  <% end%>
-
-  <ul class="wlist">
-    <%= pagination_links_full @obj_pages, @obj_count, :per_page_links => false, :remote => false, :flag => true%>
-  </ul>
-
-  <div class="cl"></div>
+<div class="polls_head" style="width:730px;">
+  <h2>所有试卷
+    <span>（<%= @obj_count%>）</span>
+  </h2>
+  <% if @is_teacher%>
+      <%#= link_to "导入", other_poll_poll_index_path(:polls_group_id => @course.id), :remote=>true,:class => "newbtn"%>
+      <%= link_to "新建试卷 ", new_exercise_path(:course_id => @course.id), :class => "newbtn" %>
+  <% end%>
+</div>
+<div class="cl"></div>
+<div id="polls_list" class="polls_list">
+
+  <% @exercises.each_with_index do |exercise,index|%>
+      <ul id="exercises_<%= exercise.id %>" class="polls_list_ul">
+        <%= render :partial => 'exercise', :locals => {:exercise => exercise,:index => index} %>
+      </ul>
+      <div class="cl"></div>
+  <% end%>
+
+  <ul class="wlist">
+    <%= pagination_links_full @obj_pages, @obj_count, :per_page_links => false, :remote => false, :flag => true%>
+  </ul>
+
+  <div class="cl"></div>
 </div><!--列表end-->
\ No newline at end of file
diff --git a/app/views/exercise/_new_MC.html.erb b/app/views/exercise/_new_MC.html.erb
index d65e01ca7..0d7350570 100644
--- a/app/views/exercise/_new_MC.html.erb
+++ b/app/views/exercise/_new_MC.html.erb
@@ -1,60 +1,62 @@
-<%= form_for(ExerciseQuestion.new,
-             :html => { :multipart => true },
-             :url=>create_exercise_question_exercise_path(exercise.id),
-             :remote=>true ) do |f| %>
-<div class="questionContainer">
-  <div class="ur_editor_title">
-    <label>问题：&nbsp;&nbsp;</label>
-    <input name="question_type" value="1" type="hidden">
-    <input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入单选题题目" type="text">
-  </div>
-  <div class="ur_editor_content">
-    <ul>
-      <li class="ur_item">
-        <% score = exercise.exercise_questions.where("question_type=1").last.nil? ? "": exercise.exercise_questions.where("question_type=1").last.question_score %>
-         <label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-         <input id="question_score" value="<%=score %>" type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;">分
-      </li>
-      <div class="cl"></div>
-      <li class="ur_item">
-        <label>选项A<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input maxlength="200" type='text' name='question_answer[0]' placeholder='输入选项内容'>
-        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
-        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-      </li>
-      <div class="cl"></div>
-      <li class="ur_item">
-        <label>选项B<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input maxlength="200" type='text' name='question_answer[1]' placeholder='输入选项内容'>
-        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
-        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-      </li>
-      <div class="cl"></div>
-      <li class="ur_item">
-        <label>选项C<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input maxlength="200" type='text' name='question_answer[2]' placeholder='输入选项内容'/>
-        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
-        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-      </li>
-      <div class="cl"></div>
-      <li class="ur_item">
-        <label>选项D<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input maxlength="200" type='text' name='question_answer[3]' placeholder='输入选项内容'/>
-        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
-        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-      </li>
-      <div class="cl"></div>
-      <li class="ur_item">
-        <label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input id="question_standard_ans" name="exercise_choice" placeholder="若标准答案为A，在此输入A即可" type="text">
-      </li>
-      <div class="cl"></div>
-    </ul>
-  </div>
-  <div class="ur_editor_footer">
-    <a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this),1);"> 保存 </a>
-    <a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();"> 取消 </a>
-  </div>
-  <div class="cl"></div>
-</div>
+<%= form_for(ExerciseQuestion.new,
+             :html => { :multipart => true },
+             :url=>create_exercise_question_exercise_path(exercise.id),
+             :remote=>true ) do |f| %>
+<div class="questionContainer">
+  <div class="ur_editor_title">
+    <label>问题：&nbsp;&nbsp;</label>
+    <input name="question_type" value="1" type="hidden">
+    <input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入单选题题目" type="text">
+  </div>
+  <div class="ur_editor_content">
+    <ul>
+      <li class="ur_item">
+        <% score = exercise.exercise_questions.where("question_type=1").last.nil? ? "": exercise.exercise_questions.where("question_type=1").last.question_score %>
+         <label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+         <input id="question_score" value="<%=score %>" type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;">分
+      </li>
+      <div class="cl"></div>
+      <div>
+          <li class="ur_item">
+            <label>选项A<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input maxlength="200" type='text' name='question_answer[0]' placeholder='输入选项内容'>
+            <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+            <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+          </li>
+          <div class="cl"></div>
+          <li class="ur_item">
+            <label>选项B<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input maxlength="200" type='text' name='question_answer[1]' placeholder='输入选项内容'>
+            <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+            <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+          </li>
+          <div class="cl"></div>
+          <li class="ur_item">
+            <label>选项C<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input maxlength="200" type='text' name='question_answer[2]' placeholder='输入选项内容'/>
+            <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+            <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+          </li>
+          <div class="cl"></div>
+          <li class="ur_item">
+            <label>选项D<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input maxlength="200" type='text' name='question_answer[3]' placeholder='输入选项内容'/>
+            <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+            <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+          </li>
+      </div>
+      <div class="cl"></div>
+      <li class="ur_item">
+        <label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+        <input id="question_standard_ans" name="exercise_choice" placeholder="若标准答案为A，在此输入A即可" type="text">
+      </li>
+      <div class="cl"></div>
+    </ul>
+  </div>
+  <div class="ur_editor_footer">
+    <a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this),1);"> 保存 </a>
+    <a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();"> 取消 </a>
+  </div>
+  <div class="cl"></div>
+</div>
 <% end %>
\ No newline at end of file
diff --git a/app/views/exercise/_new_MCQ.html.erb b/app/views/exercise/_new_MCQ.html.erb
index 0555b997c..3ea198d8f 100644
--- a/app/views/exercise/_new_MCQ.html.erb
+++ b/app/views/exercise/_new_MCQ.html.erb
@@ -1,60 +1,62 @@
-<%= form_for(ExerciseQuestion.new,
-             :html => { :multipart => true },
-             :url=>create_exercise_question_exercise_path(exercise.id),
-             :remote=>true ) do |f| %>
-<div class="questionContainer">
-  <div class="ur_editor_title">
-    <label>问题：&nbsp;&nbsp;</label>
-    <input name="question_type" value="2" type="hidden">
-    <input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入多选题题目" type="text">
-  </div>
-  <div class="ur_editor_content">
-    <ul>
-      <li class="ur_item">
-        <% score = exercise.exercise_questions.where("question_type=2").last.nil? ? "": exercise.exercise_questions.where("question_type=2").last.question_score %>
-        <label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input id="question_score" value="<%=score %>" type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;">分
-      </li>
-      <div class="cl"></div>
-      <li class="ur_item">
-        <label>选项A<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input maxlength="200" type='text' name='question_answer[0]' placeholder='输入选项内容'>
-        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
-        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-      </li>
-      <div class="cl"></div>
-      <li class="ur_item">
-        <label>选项B<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input maxlength="200" type='text' name='question_answer[1]' placeholder='输入选项内容'>
-        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
-        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-      </li>
-      <div class="cl"></div>
-      <li class="ur_item">
-        <label>选项C<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input maxlength="200" type='text' name='question_answer[2]' placeholder='输入选项内容'>
-        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
-        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-      </li>
-      <div class="cl"></div>
-      <li class="ur_item">
-        <label>选项D<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input maxlength="200" type='text' name='question_answer[3]' placeholder='输入选项内容'>
-        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
-        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-      </li>
-      <div class="cl"></div>
-      <li class="ur_item">
-        <label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input id="question_standard_ans" name="exercise_choice" placeholder="若标准答案为A,B,C，在答案输入框填入ABC即可" type="text">
-      </li>
-      <div class="cl"></div>
-    </ul>
-  </div>
-  <div class="ur_editor_footer">
-    <a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this),2);"> 保存 </a>
-    <a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();"> 取消 </a>
-  </div>
-  <div class="cl"></div>
-</div>
+<%= form_for(ExerciseQuestion.new,
+             :html => { :multipart => true },
+             :url=>create_exercise_question_exercise_path(exercise.id),
+             :remote=>true ) do |f| %>
+<div class="questionContainer">
+  <div class="ur_editor_title">
+    <label>问题：&nbsp;&nbsp;</label>
+    <input name="question_type" value="2" type="hidden">
+    <input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入多选题题目" type="text">
+  </div>
+  <div class="ur_editor_content">
+    <ul>
+      <li class="ur_item">
+        <% score = exercise.exercise_questions.where("question_type=2").last.nil? ? "": exercise.exercise_questions.where("question_type=2").last.question_score %>
+        <label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+        <input id="question_score" value="<%=score %>" type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;">分
+      </li>
+      <div class="cl"></div>
+      <div>
+          <li class="ur_item">
+            <label>选项A<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input maxlength="200" type='text' name='question_answer[0]' placeholder='输入选项内容'>
+            <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+            <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+          </li>
+          <div class="cl"></div>
+          <li class="ur_item">
+            <label>选项B<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input maxlength="200" type='text' name='question_answer[1]' placeholder='输入选项内容'>
+            <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+            <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+          </li>
+          <div class="cl"></div>
+          <li class="ur_item">
+            <label>选项C<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input maxlength="200" type='text' name='question_answer[2]' placeholder='输入选项内容'>
+            <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+            <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+          </li>
+          <div class="cl"></div>
+          <li class="ur_item">
+            <label>选项D<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input maxlength="200" type='text' name='question_answer[3]' placeholder='输入选项内容'>
+            <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+            <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+          </li>
+      </div>
+      <div class="cl"></div>
+      <li class="ur_item">
+        <label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+        <input id="question_standard_ans" name="exercise_choice" placeholder="若标准答案为A,B,C，在答案输入框填入ABC即可" type="text">
+      </li>
+      <div class="cl"></div>
+    </ul>
+  </div>
+  <div class="ur_editor_footer">
+    <a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this),2);"> 保存 </a>
+    <a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();"> 取消 </a>
+  </div>
+  <div class="cl"></div>
+</div>
 <% end %>
\ No newline at end of file
diff --git a/app/views/exercise/_new_single.html.erb b/app/views/exercise/_new_single.html.erb
index 08b31087a..061b053fd 100644
--- a/app/views/exercise/_new_single.html.erb
+++ b/app/views/exercise/_new_single.html.erb
@@ -8,7 +8,7 @@
     <input name="question_type" value="3" type="hidden">
     <input maxlength="250" class="questionTitle" name="question_title" id="poll_questions_title" placeholder="请输入填空题的内容（注意：目前填空题暂时仅支持一个空）" type="text">
   </div>
-  <div class="ur_editor_content">
+  <div class="ur_editor_content" id="new_single">
     <ul>
       <li class="ur_item">
         <% score = exercise.exercise_questions.where("question_type=3").last.nil? ? "": exercise.exercise_questions.where("question_type=3").last.question_score %>
@@ -16,26 +16,28 @@
         <input id="question_score" value="<%= score%>" type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;">分
       </li>
       <div class="cl"></div>
-      <li class="ur_item">
-        <label>候选答案一<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input  name="exercise_choice[0]" placeholder="请输入候选答案一" type="text">
-        <a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>
-        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-      </li>
-      <div class="cl"></div>
-      <li class="ur_item">
-        <label>候选答案二<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input  name="exercise_choice[1]" placeholder="请输入候选答案二（选填）" type="text">
-        <a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>
-        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-      </li>
-      <div class="cl"></div>
-      <li class="ur_item">
-        <label>候选答案三<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
-        <input  name="exercise_choice[2]" placeholder="请输入候选答案三（选填）" type="text">
-        <a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>
-        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
-      </li>
+      <div>
+          <li class="ur_item">
+            <label>候选答案一<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input  class="candiate_answer" name="exercise_choice[0]" placeholder="请输入候选答案一" type="text">
+            <a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>
+            <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+          </li>
+          <div class="cl"></div>
+          <li class="ur_item">
+            <label>候选答案二<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input  class="candiate_answer" name="exercise_choice[1]" placeholder="请输入候选答案二（选填）" type="text">
+            <a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>
+            <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+          </li>
+          <div class="cl"></div>
+          <li class="ur_item">
+            <label>候选答案三<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <input  class="candiate_answer" name="exercise_choice[2]" placeholder="请输入候选答案三（选填）" type="text">
+            <a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>
+            <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+          </li>
+      </div>
       <div class="cl"></div>
     </ul>
   </div>
diff --git a/app/views/exercise/_show_MC.html.erb b/app/views/exercise/_show_MC.html.erb
index f6ee29266..d052bd6da 100644
--- a/app/views/exercise/_show_MC.html.erb
+++ b/app/views/exercise/_show_MC.html.erb
@@ -1,111 +1,111 @@
-<div>
-  <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
-    <%= exercise_question.question_title %>
-    <span class="ml10">(<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>)</span>
-  </div>
-
-  <%= link_to("", delete_exercise_question_exercise_index_path(:exercise_question => exercise_question.id, :quest_num => exercise_question.question_number),
-              method: :delete, :confirm => l(:text_are_you_sure), :remote => true, :class => "ur_icon_de")  %>
-  <a class="ur_icon_edit" title="编辑" onclick="pollQuestionEdit(<%= exercise_question.id%>);"></a>
-  <a class='ur_icon_add' title='向下插入' id="add_mc_<%=exercise_question.id%>" onclick="dismiss('mc',<%=exercise_question.id%>);insert_MC('mc',<%=exercise_question.question_number%>,<%=exercise_question.id%>);"></a>
-  <div class="cl"></div>
-  <div class="ur_inputs">
-    <table class="ur_table"  style="width:675px;">
-      <tbody>
-      <% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>
-          <tr>
-            <td>
-              <label>
-                <input class="ur_radio" type="radio" name="<%= exercise_question %>" value="<%= exercise_choice.choice_text%>" >
-                <%= convert_to_char((index+1).to_s)%>&nbsp;&nbsp;<%= exercise_choice.choice_text%>
-              </label>
-            </td>
-          </tr>
-      <% end %>
-      </tbody>
-    </table>
-  </div>
-</div><!--单选题显示 end-->
-<!-- 新增问题 -->
-<div id="insert_new_poll_question_mc_<%=exercise_question.id%>">
-</div>
-
-<script type="text/javascript">
-    function insert_MC(quest_type,quest_num,quest_id){
-        var forms = $("form.new_exercise_question");
-        if($.trim($("#insert_new_poll_question_"+quest_type+"_"+quest_id).html()) == "") {
-            if(forms.length > 0){
-                alert("请先保存正在编辑的题目再新建。");
-            } else{
-                <% score =exercise_question.question_score %>
-                $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html(
-                                '<%= form_for(ExerciseQuestion.new,:html=>{:multipart=>true},:url=>create_exercise_question_exercise_path(exercise_question.exercise.id),:remote=>true) do |f|%>'+
-                                ' <div class="questionContainer" style="width: 680px;"> '+
-                                '<div class="ur_editor_title"> '+
-                                '<label>问题：&nbsp;&nbsp;</label>'+
-                                '<input type="hidden" name="quest_id" value="'+quest_id+'"/>'+
-                                '<input type="hidden" name="quest_num" value="'+quest_num+'"/>'+
-                                '<input type="hidden" name="question_type" value="1"/>'+
-                                '<input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入单选题题目" type="text"/>'+
-                                '</div>'+
-                                '<div class="ur_editor_content">'+
-                                '<ul>'+
-                                '<li class="ur_item">'+
-                                '<label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input value="<%=score %>" id="question_score" type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;"/>分'+
-                                '</li>'+
-                                '<li class="ur_item">'+
-                                '<label>选项A<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input maxlength="200" type="text" name="question_answer[0]" placeholder="输入选项内容"/>'+
-                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                                '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '<li class="ur_item">'+
-                                '<label>选项B<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input maxlength="200" type="text" name="question_answer[1]" placeholder="输入选项内容"/>'+
-                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                                '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '<li class="ur_item">'+
-                                '<label>选项C<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input maxlength="200" type="text" name="question_answer[2]" placeholder="输入选项内容"/>'+
-                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                                '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '<li class="ur_item">'+
-                                '<label>选项D<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input maxlength="200" type="text" name="question_answer[3]" placeholder="输入选项内容"/>'+
-                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                                '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '<li class="ur_item">'+
-                                '<label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input name="exercise_choice" id="question_standard_ans" placeholder="若标准答案为A，在此输入A即可" type="text">'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '</ul>'+
-                                '</div>'+
-                                '<div class="ur_editor_footer">'+
-                                '<a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this),1);">'+
-                                '保存'+
-                                '</a>'+
-                                '<a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">'+
-                                '<%= l(:button_cancel)%>'+
-                                '</a>'+
-                                '</div>'+
-                                '<div class="cl"></div>'+
-                                '</div>'+
-                                '<% end%>'
-                );
-                $("#poll_questions_title").focus();
-                }
-       }
-        else {
-            $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html("");
-        }
-    }
+<div>
+  <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
+    <%= exercise_question.question_title %>
+    <span class="ml10">(<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>)</span>
+  </div>
+
+  <%= link_to("", delete_exercise_question_exercise_index_path(:exercise_question => exercise_question.id, :quest_num => exercise_question.question_number),
+              method: :delete, :confirm => l(:text_are_you_sure), :remote => true, :class => "ur_icon_de")  %>
+  <a class="ur_icon_edit" title="编辑" onclick="pollQuestionEdit(<%= exercise_question.id%>);"></a>
+  <a class='ur_icon_add' title='向下插入' id="add_mc_<%=exercise_question.id%>" onclick="dismiss('mc',<%=exercise_question.id%>);insert_MC('mc',<%=exercise_question.question_number%>,<%=exercise_question.id%>);"></a>
+  <div class="cl"></div>
+  <div class="ur_inputs">
+    <table class="ur_table"  style="width:675px;">
+      <tbody>
+      <% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>
+          <tr>
+            <td>
+              <label>
+                <input class="ur_radio" type="radio" name="<%= exercise_question %>" value="<%= exercise_choice.choice_text%>" >
+                <%= convert_to_char((index+1).to_s)%>&nbsp;&nbsp;<%= exercise_choice.choice_text%>
+              </label>
+            </td>
+          </tr>
+      <% end %>
+      </tbody>
+    </table>
+  </div>
+</div><!--单选题显示 end-->
+<!-- 新增问题 -->
+<div id="insert_new_poll_question_mc_<%=exercise_question.id%>">
+</div>
+
+<script type="text/javascript">
+    function insert_MC(quest_type,quest_num,quest_id){
+        var forms = $("form.new_exercise_question");
+        if($.trim($("#insert_new_poll_question_"+quest_type+"_"+quest_id).html()) == "") {
+            if(forms.length > 0){
+                alert("请先保存正在编辑的题目再新建。");
+            } else{
+                <% score =exercise_question.question_score %>
+                $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html(
+                                '<%= form_for(ExerciseQuestion.new,:html=>{:multipart=>true},:url=>create_exercise_question_exercise_path(exercise_question.exercise.id),:remote=>true) do |f|%>'+
+                                ' <div class="questionContainer" style="width: 680px;"> '+
+                                '<div class="ur_editor_title"> '+
+                                '<label>问题：&nbsp;&nbsp;</label>'+
+                                '<input type="hidden" name="quest_id" value="'+quest_id+'"/>'+
+                                '<input type="hidden" name="quest_num" value="'+quest_num+'"/>'+
+                                '<input type="hidden" name="question_type" value="1"/>'+
+                                '<input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入单选题题目" type="text"/>'+
+                                '</div>'+
+                                '<div class="ur_editor_content">'+
+                                '<ul>'+
+                                '<li class="ur_item">'+
+                                '<label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input value="<%=score %>" id="question_score" type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;"/>分'+
+                                '</li><div>'+
+                                '<li class="ur_item">'+
+                                '<label>选项A<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input maxlength="200" type="text" name="question_answer[0]" placeholder="输入选项内容"/>'+
+                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                                '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
+                                '</li>'+
+                                '<div class="cl"></div>'+
+                                '<li class="ur_item">'+
+                                '<label>选项B<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input maxlength="200" type="text" name="question_answer[1]" placeholder="输入选项内容"/>'+
+                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                                '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
+                                '</li>'+
+                                '<div class="cl"></div>'+
+                                '<li class="ur_item">'+
+                                '<label>选项C<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input maxlength="200" type="text" name="question_answer[2]" placeholder="输入选项内容"/>'+
+                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                                '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
+                                '</li>'+
+                                '<div class="cl"></div>'+
+                                '<li class="ur_item">'+
+                                '<label>选项D<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input maxlength="200" type="text" name="question_answer[3]" placeholder="输入选项内容"/>'+
+                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                                '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
+                                '</li></div>'+
+                                '<div class="cl"></div>'+
+                                '<li class="ur_item">'+
+                                '<label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input name="exercise_choice" id="question_standard_ans" placeholder="若标准答案为A，在此输入A即可" type="text">'+
+                                '</li>'+
+                                '<div class="cl"></div>'+
+                                '</ul>'+
+                                '</div>'+
+                                '<div class="ur_editor_footer">'+
+                                '<a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this),1);">'+
+                                '保存'+
+                                '</a>'+
+                                '<a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">'+
+                                '<%= l(:button_cancel)%>'+
+                                '</a>'+
+                                '</div>'+
+                                '<div class="cl"></div>'+
+                                '</div>'+
+                                '<% end%>'
+                );
+                $("#poll_questions_title").focus();
+                }
+       }
+        else {
+            $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html("");
+        }
+    }
 </script>
\ No newline at end of file
diff --git a/app/views/exercise/_show_MCQ.html.erb b/app/views/exercise/_show_MCQ.html.erb
index d7a7c2b6d..a477303d7 100644
--- a/app/views/exercise/_show_MCQ.html.erb
+++ b/app/views/exercise/_show_MCQ.html.erb
@@ -1,109 +1,109 @@
-<div>
-  <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
-    <%= exercise_question.question_title %>
-    <span class="ml10">(<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>)</span>
-  </div>
-  <%= link_to("", delete_exercise_question_exercise_index_path(:exercise_question => exercise_question.id, :quest_num => exercise_question.question_number),
-              method: :delete, :confirm => l(:text_are_you_sure), :remote => true, :class => "ur_icon_de")  %>
-  <a class="ur_icon_edit" title="编辑" onclick="pollQuestionEdit(<%= exercise_question.id%>);"></a>
-  <a class='ur_icon_add' title='向下插入' id="add_mcq_<%=exercise_question.id%>" onclick="dismiss('mcq',<%=exercise_question.id%>);insert_MCQ('mcq',<%=exercise_question.question_number%>,<%=exercise_question.id%>);"></a>
-  <div class="cl"></div>
-  <div class="ur_inputs">
-    <table class="ur_table" style="width:675px;">
-      <tbody>
-      <% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>
-          <tr>
-            <td>
-              <label>
-                <input class="ur_radio" type="checkbox" name="<%= exercise_question  %>" value="<%= exercise_choice.choice_text%>" >
-                <%= convert_to_char((index+1).to_s)%>&nbsp;&nbsp;<%= exercise_choice.choice_text%>
-              </label>
-            </td>
-          </tr>
-      <% end %>
-      </tbody>
-    </table>
-  </div>
-</div><!--多选题显示 end-->
-<!-- 新增问题 -->
-<div id="insert_new_poll_question_mcq_<%=exercise_question.id%>">
-</div>
-
-<script type="text/javascript">
-    function insert_MCQ(quest_type,quest_num,quest_id){
-        var forms = $("form.new_exercise_question");
-        if($.trim($("#insert_new_poll_question_"+quest_type+"_"+quest_id).html()) == ""){
-            if(forms.length > 0){
-                alert("请先保存正在编辑的题目再新建。");
-            } else {
-                <% score =exercise_question.question_score %>
-                $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html(
-                                '<%= form_for(ExerciseQuestion.new,:html=>{:multipart=>true},:url=>create_exercise_question_exercise_path(exercise_question.exercise.id),:remote=>true) do |f|%>'+
-                                ' <div class="questionContainer" style="width: 680px;"> '+
-                                '<div class="ur_editor_title"> '+
-                                '<label>问题：&nbsp;&nbsp;</label>'+
-                                '<input type="hidden" name="quest_id" value="'+quest_id+'"/>'+
-                                '<input type="hidden" name="quest_num" value="'+quest_num+'"/>'+
-                                '<input type="hidden" name="question_type" value="2"/>'+
-                                '<input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入多选题题目" type="text"/>'+
-                                '</div>'+
-                                '<div class="ur_editor_content">'+
-                                '<ul>'+
-                                '<li class="ur_item">'+
-                                '<label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input value="<%= score %>" id="question_score" type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;"/>分'+
-                                '</li>'+
-                                '<li class="ur_item">'+
-                                '<label>选项A<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input maxlength="200" type="text" name="question_answer[0]" placeholder="输入选项内容"/>'+
-                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                                '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '<li class="ur_item">'+
-                                '<label>选项B<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input maxlength="200" type="text" name="question_answer[1]" placeholder="输入选项内容"/>'+
-                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                                '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '<li class="ur_item">'+
-                                '<label>选项C<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input maxlength="200" type="text" name="question_answer[2]" placeholder="输入选项内容"/>'+
-                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                                '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '<li class="ur_item">'+
-                                '<label>选项D<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input maxlength="200" type="text" name="question_answer[3]" placeholder="输入选项内容"/>'+
-                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                                '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '<li class="ur_item">'+
-                                '<label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input name="exercise_choice" id="question_standard_ans" placeholder="若标准答案为A,B,C，在答案输入框填入ABC即可" type="text">'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '</ul>'+
-                                '</div>'+
-                                '<div class="ur_editor_footer">'+
-                                '<a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this),2);">'+
-                                '保存'+
-                                '</a>'+
-                                '<a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">'+
-                                '<%= l(:button_cancel)%>'+
-                                '</a>'+
-                                '</div>'+
-                                '<div class="cl"></div>'+
-                                '</div>'+
-                                '<% end%>'
-                );
-                $("#poll_questions_title").focus();
-        }
-        }else {
-            $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html("");
-        }
-    }
+<div>
+  <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
+    <%= exercise_question.question_title %>
+    <span class="ml10">(<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>)</span>
+  </div>
+  <%= link_to("", delete_exercise_question_exercise_index_path(:exercise_question => exercise_question.id, :quest_num => exercise_question.question_number),
+              method: :delete, :confirm => l(:text_are_you_sure), :remote => true, :class => "ur_icon_de",:title => "删除")  %>
+  <a class="ur_icon_edit" title="编辑" onclick="pollQuestionEdit(<%= exercise_question.id%>);"></a>
+  <a class='ur_icon_add' title='向下插入' id="add_mcq_<%=exercise_question.id%>" onclick="dismiss('mcq',<%=exercise_question.id%>);insert_MCQ('mcq',<%=exercise_question.question_number%>,<%=exercise_question.id%>);"></a>
+  <div class="cl"></div>
+  <div class="ur_inputs">
+    <table class="ur_table" style="width:675px;">
+      <tbody>
+      <% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>
+          <tr>
+            <td>
+              <label>
+                <input class="ur_radio" type="checkbox" name="<%= exercise_question  %>" value="<%= exercise_choice.choice_text%>" >
+                <%= convert_to_char((index+1).to_s)%>&nbsp;&nbsp;<%= exercise_choice.choice_text%>
+              </label>
+            </td>
+          </tr>
+      <% end %>
+      </tbody>
+    </table>
+  </div>
+</div><!--多选题显示 end-->
+<!-- 新增问题 -->
+<div id="insert_new_poll_question_mcq_<%=exercise_question.id%>">
+</div>
+
+<script type="text/javascript">
+    function insert_MCQ(quest_type,quest_num,quest_id){
+        var forms = $("form.new_exercise_question");
+        if($.trim($("#insert_new_poll_question_"+quest_type+"_"+quest_id).html()) == ""){
+            if(forms.length > 0){
+                alert("请先保存正在编辑的题目再新建。");
+            } else {
+                <% score =exercise_question.question_score %>
+                $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html(
+                                '<%= form_for(ExerciseQuestion.new,:html=>{:multipart=>true},:url=>create_exercise_question_exercise_path(exercise_question.exercise.id),:remote=>true) do |f|%>'+
+                                ' <div class="questionContainer" style="width: 680px;"> '+
+                                '<div class="ur_editor_title"> '+
+                                '<label>问题：&nbsp;&nbsp;</label>'+
+                                '<input type="hidden" name="quest_id" value="'+quest_id+'"/>'+
+                                '<input type="hidden" name="quest_num" value="'+quest_num+'"/>'+
+                                '<input type="hidden" name="question_type" value="2"/>'+
+                                '<input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入多选题题目" type="text"/>'+
+                                '</div>'+
+                                '<div class="ur_editor_content">'+
+                                '<ul>'+
+                                '<li class="ur_item">'+
+                                '<label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input value="<%= score %>" id="question_score" type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;"/>分'+
+                                '</li><div>'+
+                                '<li class="ur_item">'+
+                                '<label>选项A<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input maxlength="200" type="text" name="question_answer[0]" placeholder="输入选项内容"/>'+
+                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                                '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
+                                '</li>'+
+                                '<div class="cl"></div>'+
+                                '<li class="ur_item">'+
+                                '<label>选项B<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input maxlength="200" type="text" name="question_answer[1]" placeholder="输入选项内容"/>'+
+                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                                '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
+                                '</li>'+
+                                '<div class="cl"></div>'+
+                                '<li class="ur_item">'+
+                                '<label>选项C<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input maxlength="200" type="text" name="question_answer[2]" placeholder="输入选项内容"/>'+
+                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                                '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
+                                '</li>'+
+                                '<div class="cl"></div>'+
+                                '<li class="ur_item">'+
+                                '<label>选项D<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input maxlength="200" type="text" name="question_answer[3]" placeholder="输入选项内容"/>'+
+                                '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                                '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
+                                '</li></div>'+
+                                '<div class="cl"></div>'+
+                                '<li class="ur_item">'+
+                                '<label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input name="exercise_choice" id="question_standard_ans" placeholder="若标准答案为A,B,C，在答案输入框填入ABC即可" type="text">'+
+                                '</li>'+
+                                '<div class="cl"></div>'+
+                                '</ul>'+
+                                '</div>'+
+                                '<div class="ur_editor_footer">'+
+                                '<a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this),2);">'+
+                                '保存'+
+                                '</a>'+
+                                '<a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">'+
+                                '<%= l(:button_cancel)%>'+
+                                '</a>'+
+                                '</div>'+
+                                '<div class="cl"></div>'+
+                                '</div>'+
+                                '<% end%>'
+                );
+                $("#poll_questions_title").focus();
+        }
+        }else {
+            $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html("");
+        }
+    }
 </script>
\ No newline at end of file
diff --git a/app/views/exercise/_show_head.html.erb b/app/views/exercise/_show_head.html.erb
index ac7c1c162..f385e58b8 100644
--- a/app/views/exercise/_show_head.html.erb
+++ b/app/views/exercise/_show_head.html.erb
@@ -3,9 +3,14 @@
   <!--  <a class='ur_icon_add' title='导入' id="import_btn" onclick="importPoll();"></a> -->
   <h1 class="ur_page_title" id="polls_name_h"><%= exercise.exercise_name%></h1>
   <div class="fontGrey2">
-    <span class="mr100">发布时间：<%=Time.parse(format_time(exercise.publish_time)).strftime("%Y-%m-%d %H:%M:%S") if exercise.publish_time%></span>
-    <span class="mr100">截止时间：<%=Time.parse(format_time(exercise.end_time)).strftime("%Y-%m-%d %H:%M:%S") if exercise.end_time %></span>
-    <span>测验时长：<%= exercise.time %>分钟</span></div>
+    <% unless exercise.publish_time.nil? %>
+        <span class="mr100">发布时间：<%=Time.parse(h(exercise.publish_time)).strftime("%Y-%m-%d %H:%M:%S") if exercise.publish_time%></span>
+    <% end %>
+    <span class="mr100">截止时间：<%=Time.parse(h(exercise.end_time)).strftime("%Y-%m-%d %H:%M:%S") if exercise.end_time %></span>
+    <% if exercise.time != -1 %>
+        <span>测验时长：<%= exercise.time %>分钟</span>
+    <% end %>
+  </div>
   <div class="testDesEdit mt5"><%= exercise.exercise_description.nil? ? "" : exercise.exercise_description.html_safe%></div>
   <div class="cl"></div>
   <div class="cl"></div>
diff --git a/app/views/exercise/_show_single.html.erb b/app/views/exercise/_show_single.html.erb
index a6bb5afe9..86203b8bb 100644
--- a/app/views/exercise/_show_single.html.erb
+++ b/app/views/exercise/_show_single.html.erb
@@ -1,85 +1,85 @@
-<div>
-  <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
-    <%= exercise_question.question_title %>
-  </div>
-  <%= link_to("", delete_exercise_question_exercise_index_path(:exercise_question => exercise_question.id, :quest_num => exercise_question.question_number),
-              method: :delete, :confirm => l(:text_are_you_sure), :remote => true,  :class => "ur_icon_de") %>
-  <a class="ur_icon_edit" title="编辑" onclick="pollQuestionEdit(<%= exercise_question.id%>);"></a>
-  <a class='ur_icon_add' title='向下插入' id="add_single_<%=exercise_question.id%>" onclick="dismiss('single',<%=exercise_question.id%>);insert_SINGLE('single',<%=exercise_question.question_number%>,<%=exercise_question.id%>);"></a>
-  <div class="cl"></div>
-  <div>
-    <% exercise_question.exercise_standard_answers.reorder("created_at").each_with_index do |exercise_choice,index| %>
-        候选答案：<%= exercise_choice.answer_text%><br />
-    <% end %>
-  </div>
-</div>
-<!-- 新增问题 -->
-<div id="insert_new_poll_question_single_<%=exercise_question.id%>">
-</div>
-
-<script type="text/javascript">
-    function insert_SINGLE(quest_type,quest_num,quest_id){
-        var forms = $("form.new_exercise_question");
-        if($.trim($("#insert_new_poll_question_"+quest_type+"_"+quest_id).html()) == "") {
-            if(forms.length > 0){
-                alert("请先保存正在编辑的题目再新建。");
-            } else {
-                <% score =exercise_question.question_score %>
-                $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html(
-                                '<%= form_for(ExerciseQuestion.new,:html=>{:multipart=>true},:url=>create_exercise_question_exercise_path(exercise_question.exercise.id),:remote=>true) do |f|%>'+
-                                ' <div class="questionContainer" style="width: 680px;"> '+
-                                '<div class="ur_editor_title"> '+
-                                '<label>问题：&nbsp;&nbsp;</label>'+
-                                '<input type="hidden" name="quest_id" value="'+quest_id+'"/>'+
-                                '<input type="hidden" name="quest_num" value="'+quest_num+'"/>'+
-                                '<input type="hidden" name="question_type" value="3"/>'+
-                                '<input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入填空题的内容（注意：目前填空题暂时仅支持一个空）" type="text"/>'+
-                                '</div>'+
-                                '<div class="ur_editor_content">'+
-                                '<ul>'+
-                                '<li class="ur_item">'+
-                                '<label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input value="<%= score %>" id="question_score" type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;"/>分'+
-                                '</li>'+
-                                '<li class="ur_item">'+
-                                '<label>候选答案一<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input type="text" name="exercise_choice[0]" placeholder="请输入候选答案一"/>'+
-                                '<a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>'+
-                                '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '<li class="ur_item">'+
-                                '<label>候选答案二<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input type="text" name="exercise_choice[1]" placeholder="请输入候选答案二（选填）"/>'+
-                                '<a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>'+
-                                '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '<li class="ur_item">'+
-                                '<label>候选答案三<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                                '<input maxlength="200" type="text" name="exercise_choice[2]" placeholder="请输入候选答案三（选填）"/>'+
-                                '<a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>'+
-                                '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
-                                '</li>'+
-                                '<div class="cl"></div>'+
-                                '</ul>'+
-                                '</div>'+
-                                '<div class="ur_editor_footer">'+
-                                '<a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this),3);">'+
-                                '保存'+
-                                '</a>'+
-                                '<a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">'+
-                                '<%= l(:button_cancel)%>'+
-                                '</a>'+
-                                '</div>'+
-                                '<div class="cl"></div>'+
-                                '</div>'+
-                                '<% end%>'
-                );
-                $("#poll_questions_title").focus();
-            }
-        } else {
-            $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html("");
-        }
-    }
+<div>
+  <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
+    <%= exercise_question.question_title %>
+  </div>
+  <%= link_to("", delete_exercise_question_exercise_index_path(:exercise_question => exercise_question.id, :quest_num => exercise_question.question_number),
+              method: :delete, :confirm => l(:text_are_you_sure), :remote => true,  :class => "ur_icon_de",:title => "删除") %>
+  <a class="ur_icon_edit" title="编辑" onclick="pollQuestionEdit(<%= exercise_question.id%>);"></a>
+  <a class='ur_icon_add' title='向下插入' id="add_single_<%=exercise_question.id%>" onclick="dismiss('single',<%=exercise_question.id%>);insert_SINGLE('single',<%=exercise_question.question_number%>,<%=exercise_question.id%>);"></a>
+  <div class="cl"></div>
+  <div>
+    <% exercise_question.exercise_standard_answers.reorder("created_at").each_with_index do |exercise_choice,index| %>
+        候选答案：<%= exercise_choice.answer_text%><br />
+    <% end %>
+  </div>
+</div>
+<!-- 新增问题 -->
+<div id="insert_new_poll_question_single_<%=exercise_question.id%>">
+</div>
+
+<script type="text/javascript">
+    function insert_SINGLE(quest_type,quest_num,quest_id){
+        var forms = $("form.new_exercise_question");
+        if($.trim($("#insert_new_poll_question_"+quest_type+"_"+quest_id).html()) == "") {
+            if(forms.length > 0){
+                alert("请先保存正在编辑的题目再新建。");
+            } else {
+                <% score =exercise_question.question_score %>
+                $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html(
+                                '<%= form_for(ExerciseQuestion.new,:html=>{:multipart=>true},:url=>create_exercise_question_exercise_path(exercise_question.exercise.id),:remote=>true) do |f|%>'+
+                                ' <div class="questionContainer" style="width: 680px;"> '+
+                                '<div class="ur_editor_title"> '+
+                                '<label>问题：&nbsp;&nbsp;</label>'+
+                                '<input type="hidden" name="quest_id" value="'+quest_id+'"/>'+
+                                '<input type="hidden" name="quest_num" value="'+quest_num+'"/>'+
+                                '<input type="hidden" name="question_type" value="3"/>'+
+                                '<input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入填空题的内容（注意：目前填空题暂时仅支持一个空）" type="text"/>'+
+                                '</div>'+
+                                '<div class="ur_editor_content" id="new_single">'+
+                                '<ul>'+
+                                '<li class="ur_item">'+
+                                '<label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input value="<%= score %>" id="question_score" type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;"/>分'+
+                                '</li><div>'+
+                                '<li class="ur_item">'+
+                                '<label>候选答案一<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input class="candiate_answer" type="text" name="exercise_choice[0]" placeholder="请输入候选答案一"/>'+
+                                '<a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>'+
+                                '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
+                                '</li>'+
+                                '<div class="cl"></div>'+
+                                '<li class="ur_item">'+
+                                '<label>候选答案二<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input class="candiate_answer" type="text" name="exercise_choice[1]" placeholder="请输入候选答案二（选填）"/>'+
+                                '<a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>'+
+                                '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
+                                '</li>'+
+                                '<div class="cl"></div>'+
+                                '<li class="ur_item">'+
+                                '<label>候选答案三<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<input class="candiate_answer" type="text" name="exercise_choice[2]" placeholder="请输入候选答案三（选填）"/>'+
+                                '<a class="icon_add" title="向下插入选项" onclick="add_candidate_answer($(this));"></a>'+
+                                '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
+                                '</li></div>'+
+                                '<div class="cl"></div>'+
+                                '</ul>'+
+                                '</div>'+
+                                '<div class="ur_editor_footer">'+
+                                '<a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this),3);">'+
+                                '保存'+
+                                '</a>'+
+                                '<a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">'+
+                                '<%= l(:button_cancel)%>'+
+                                '</a>'+
+                                '</div>'+
+                                '<div class="cl"></div>'+
+                                '</div>'+
+                                '<% end%>'
+                );
+                $("#poll_questions_title").focus();
+            }
+        } else {
+            $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html("");
+        }
+    }
 </script>
\ No newline at end of file
diff --git a/app/views/exercise/commit_exercise.js.erb b/app/views/exercise/commit_exercise.js.erb
index 2a40df2a5..5ede8a951 100644
--- a/app/views/exercise/commit_exercise.js.erb
+++ b/app/views/exercise/commit_exercise.js.erb
@@ -1,4 +1,4 @@
-$('#ajax-modal').html('<%= escape_javascript(render :partial => 'commit_alert',:locals => {:status => @status}) %>');
+$('#ajax-modal').html('<%= escape_javascript(render :partial => 'commit_alert',:locals => {:status => @status,:exercise =>@exercise}) %>');
 showModal('ajax-modal', '270px');
 $('#ajax-modal').css('height','110px');
 $('#ajax-modal').siblings().remove();
diff --git a/app/views/exercise/index.html.erb b/app/views/exercise/index.html.erb
index 3cff84e1c..9b6961e6c 100644
--- a/app/views/exercise/index.html.erb
+++ b/app/views/exercise/index.html.erb
@@ -1,63 +1,68 @@
-<%= stylesheet_link_tag  'polls', :media => 'all' %>
-<script type="text/javascript">
-    function republish_exercise(exercise_id)
-    {
-        $('#ajax-modal').html("<div id='popbox02'>" +
-                "<div class='upload_con'>" +
-                "<div class='upload_box'>" +
-                "<p class='polls_box_p'>取消发布后学生答题将会被清空<br />是否确定取消发布该测验？</p>" +
-                "<div class='polls_btn_box'>" +
-                "<a href='/exercise/"+ exercise_id +"/republish_exercise' class='upload_btn' onclick='clickCanel();' data-remote='true'>确&nbsp;&nbsp;定</a>" +
-                "<a class='upload_btn upload_btn_grey' onclick='clickCanel();'>取&nbsp;&nbsp;消</a>" +
-                "</div>" +
-                "<div class='cl'></div>" +
-                "</div>" +
-                "</div>" +
-                "</div>");
-        showModal('ajax-modal', '310px');
-        $('#ajax-modal').css('height','120px');
-        $('#ajax-modal').siblings().remove();
-        $('#ajax-modal').before("<span style='float: right;cursor:pointer;'>" +
-                "<a onclick='clickCanel();'><img src='/images/bid/close.png' width='26px' height='26px' /></a></span>");
-        $('#ajax-modal').parent().removeClass("alert_praise");
-        $('#ajax-modal').parent().css("top","").css("left","");
-        $('#ajax-modal').parent().addClass("popbox_polls");
-    }
-
-    function clickCanel(){hideModal("#popbox02");}
-
-    function exercise_submit(exercise_id,exercise_name)
-    {
-        if(exercise_name == 0)
-        {
-            alert("试卷标题不能为空");
-        }
-        else
-        {
-            $('#ajax-modal').html("<div id='popbox02'>" +
-                    "<div class='upload_con'>" +
-                    "<div class='upload_box'>" +
-                    "<p class='polls_box_p'>测验发布后将不能对测验进行修改，<br />是否确定发布该测验？</p>" +
-                    "<div class='polls_btn_box'>" +
-                    "<a href='/exercise/"+ exercise_id +"/publish_exercise' class='upload_btn' onclick='clickCanel();' data-remote='true'>确&nbsp;&nbsp;定</a>" +
-                    "<a class='upload_btn upload_btn_grey' onclick='clickCanel();'>取&nbsp;&nbsp;消</a>" +
-                    "</div>" +
-                    "<div class='cl'></div>" +
-                    "</div>" +
-                    "</div>" +
-                    "</div>");
-            showModal('ajax-modal', '310px');
-            $('#ajax-modal').css('height','120px');
-            $('#ajax-modal').siblings().remove();
-            $('#ajax-modal').before("<span style='float: right;cursor:pointer;'>" +
-                    "<a href='javascript:' onclick='clickCanel();'><img src='/images/bid/close.png' width='26px' height='26px' /></a></span>");
-            $('#ajax-modal').parent().removeClass("alert_praise");
-            $('#ajax-modal').parent().css("top","").css("left","");
-            $('#ajax-modal').parent().addClass("popbox_polls");
-        }
-    }
-
-</script>
-<div class="polls_content02" id="exercise">
-  <%= render :partial => 'exercises_list'%>
+<%= stylesheet_link_tag  'polls', :media => 'all' %>
+<script type="text/javascript">
+    $(function(){
+        $("#RSide").css("width","730px");
+        $("#homework_page_right").css("min-height",$("#LSide").height()-30);
+        $("#Container").css("width","1000px");
+    });
+    function republish_exercise(exercise_id,index)
+    {
+        $('#ajax-modal').html("<div id='popbox02'>" +
+                "<div class='upload_con'>" +
+                "<div class='upload_box'>" +
+                "<p class='polls_box_p'>取消发布后学生答题将会被清空<br />是否确定取消发布该测验？</p>" +
+                "<div class='polls_btn_box'>" +
+                "<a href='/exercise/"+ exercise_id +"/republish_exercise?index="+index+"' class='upload_btn' onclick='clickCanel();' data-remote='true'>确&nbsp;&nbsp;定</a>" +
+                "<a class='upload_btn upload_btn_grey' onclick='clickCanel();'>取&nbsp;&nbsp;消</a>" +
+                "</div>" +
+                "<div class='cl'></div>" +
+                "</div>" +
+                "</div>" +
+                "</div>");
+        showModal('ajax-modal', '310px');
+        $('#ajax-modal').css('height','120px');
+        $('#ajax-modal').siblings().remove();
+        $('#ajax-modal').before("<span style='float: right;cursor:pointer;'>" +
+                "<a onclick='clickCanel();'><img src='/images/bid/close.png' width='26px' height='26px' /></a></span>");
+        $('#ajax-modal').parent().removeClass("alert_praise");
+        $('#ajax-modal').parent().css("top","").css("left","");
+        $('#ajax-modal').parent().addClass("popbox_polls");
+    }
+
+    function clickCanel(){hideModal("#popbox02");}
+
+    function exercise_submit(exercise_id,exercise_name,index)
+    {
+        if(exercise_name == 0)
+        {
+            alert("试卷标题不能为空");
+        }
+        else
+        {
+            $('#ajax-modal').html("<div id='popbox02'>" +
+                    "<div class='upload_con'>" +
+                    "<div class='upload_box'>" +
+                    "<p class='polls_box_p'>测验发布后将不能对测验进行修改，<br />是否确定发布该测验？</p>" +
+                    "<div class='polls_btn_box'>" +
+                    "<a href='/exercise/"+ exercise_id +"/publish_exercise?index="+index+"' class='upload_btn' onclick='clickCanel();' data-remote='true'>确&nbsp;&nbsp;定</a>" +
+                    "<a class='upload_btn upload_btn_grey' onclick='clickCanel();'>取&nbsp;&nbsp;消</a>" +
+                    "</div>" +
+                    "<div class='cl'></div>" +
+                    "</div>" +
+                    "</div>" +
+                    "</div>");
+            showModal('ajax-modal', '310px');
+            $('#ajax-modal').css('height','120px');
+            $('#ajax-modal').siblings().remove();
+            $('#ajax-modal').before("<span style='float: right;cursor:pointer;'>" +
+                    "<a href='javascript:' onclick='clickCanel();'><img src='/images/bid/close.png' width='26px' height='26px' /></a></span>");
+            $('#ajax-modal').parent().removeClass("alert_praise");
+            $('#ajax-modal').parent().css("top","").css("left","");
+            $('#ajax-modal').parent().addClass("popbox_polls");
+        }
+    }
+
+</script>
+<div class="polls_content02" id="exercise" style="width: 730px;">
+  <%= render :partial => 'exercises_list'%>
 </div><!--问卷内容end-->
\ No newline at end of file
diff --git a/app/views/exercise/publish_exercise.js.erb b/app/views/exercise/publish_exercise.js.erb
index ac2899402..c1c4a4fd5 100644
--- a/app/views/exercise/publish_exercise.js.erb
+++ b/app/views/exercise/publish_exercise.js.erb
@@ -1,4 +1,4 @@
-$("#exercises_<%= @exercise.id %>").html("<%= escape_javascript(render :partial => 'exercise',:locals => {:exercise => @exercise}) %>");
+$("#exercises_<%= @exercise.id %>").html("<%= escape_javascript(render :partial => 'exercise',:locals => {:exercise => @exercise,:index =>@index}) %>");
 $('#ajax-modal').html("<%= escape_javascript(render :partial => 'alert', locals: { :message => l(:label_memo_create_succ)}) %>");
 showModal('ajax-modal', '250px');
 //$('#ajax-modal').css('height','111px');
diff --git a/app/views/exercise/republish_exercise.js.erb b/app/views/exercise/republish_exercise.js.erb
index b7172fe9e..2b4e67606 100644
--- a/app/views/exercise/republish_exercise.js.erb
+++ b/app/views/exercise/republish_exercise.js.erb
@@ -1,4 +1,4 @@
-$("#exercises_<%= @exercise.id %>").html("<%= escape_javascript(render :partial => 'exercise',:locals => {:exercise => @exercise}) %>");
+$("#exercises_<%= @exercise.id %>").html("<%= escape_javascript(render :partial => 'exercise',:locals => {:exercise => @exercise,:index => @index}) %>");
 $('#ajax-modal').html("<%= escape_javascript(render :partial => 'alert', locals: { :message => l(:label_poll_republish_success)}) %>");
 showModal('ajax-modal', '250px');
 //$('#ajax-modal').css('height','80px');
diff --git a/app/views/exercise/student_exercise_list.html.erb b/app/views/exercise/student_exercise_list.html.erb
index 8653836ca..2e51d61af 100644
--- a/app/views/exercise/student_exercise_list.html.erb
+++ b/app/views/exercise/student_exercise_list.html.erb
@@ -73,7 +73,7 @@
             <ul>
               <% @all_exercises.each_with_index do |exercise,index |%>
                   <li class="pr10">
-                    <%= link_to "作业#{@all_exercises.count - index}：#{exercise.exercise_name}",''%>
+                    <%= link_to "测验#{@all_exercises.count - index}：#{exercise.exercise_name}",student_exercise_list_exercise_path(exercise.id,:course_id => @course.id)%>
                     <%#= link_to "第#{@homework_commons.count - index}次作业",student_work_index_path(:homework => homework_common.id)%>
                   </li>
               <% end%>
diff --git a/app/views/layouts/base_courses.html.erb b/app/views/layouts/base_courses.html.erb
index 106aa35a7..603f7febb 100644
--- a/app/views/layouts/base_courses.html.erb
+++ b/app/views/layouts/base_courses.html.erb
@@ -136,50 +136,125 @@
       </div>
 
       <div class="subNavBox">
+        <% unless show_nav?(@course.course_activities.count) %>
         <div class="subNav">
           <%= link_to l(:label_activity), course_path(@course), :class => "f14 c_blue02" %>
           <!--暂时不显示课程动态数，优化后在显示-->
           <%= link_to "(#{@course.course_activities.count})", course_path(@course), :class => "subnav_num c_orange"%>
         </div>
+        <% end %>
+        <% unless show_nav?(@course.homework_commons.count) %>
         <div class="subNav">
           <%= link_to l(:label_homework), homework_common_index_path(:course => @course.id), :class => "f14 c_blue02"%>
           <%= link_to "(#{@course.homework_commons.count})", homework_common_index_path(:course => @course.id), :class => "subnav_num c_orange"%>
-          <%= link_to( "+#{l(:label_course_homework_new)}", homework_common_index_path(:course => @course.id,:is_new => 1), :class => 'subnav_green c_white') if is_teacher %>
+          <%= link_to( "", homework_common_index_path(:course => @course.id,:is_new => 1), :class => 'courseMenuSetting', :title =>"#{l(:label_course_homework_new)}") if is_teacher %>
         </div>
+        <% end %>
+        <% unless show_nav?(@course.news.count) %>
         <div class="subNav">
           <%= link_to l(:label_course_news), course_news_index_path(@course), :class => "f14 c_blue02" %>
           <%= link_to "(#{@course.news.count})", course_news_index_path(@course), :class => "subnav_num c_orange"%>
-          <%= link_to( "+#{l(:label_course_news_new)}", new_course_news_path(@course), :class => 'subnav_green c_white') if is_teacher %>
+          <%= link_to( "", new_course_news_path(@course), :class => 'courseMenuSetting', :title =>"#{l(:label_course_news_new)}") if is_teacher %>
         </div>
+        <% end %>
+        <% unless show_nav?(course_file_num) %>
         <div class="subNav">
           <%= link_to l(:label_course_file), course_files_path(@course), :class => "f14 c_blue02" %>
           <%= link_to "(#{course_file_num})", course_files_path(@course), :class => "subnav_num c_orange",:id=>'courses_files_count_nav' %>
           <% if is_teacher || (@course.publish_resource == 1  && User.current.member_of_course?(@course)) %>
               <!--link_to( "+#{l(:label_upload_files)}", course_files_path(@course), :class => 'subnav_green ml95 c_white')-->
-              <a class="subnav_green ml95 c_white" href="javascript:void(0);" onclick="course_files_upload();">+上传资源 </a>
+              <a class="courseMenuSetting" title="上传资源" href="javascript:void(0);" onclick="course_files_upload();"> </a>
           <% end %>
         </div>
+        <% end %>
+        <% unless show_nav?(@course.boards.first ? @course.boards.first.topics.count : 0) %>
         <div class="subNav">
           <%= link_to l(:label_course_board), course_boards_path(@course), :class => "f14 c_blue02" %>
           <%= link_to "(#{@course.boards.first ? @course.boards.first.topics.count : 0})", course_boards_path(@course), :class => "subnav_num c_orange" %>
-          <%= link_to( "+#{l(:label_message_new)}",course_boards_path(@course, :flag => true, :is_new => 1),:class => 'subnav_green ml95 c_white') if User.current.member_of_course?(@course) && @course.boards.first %>
+          <%= link_to( "",course_boards_path(@course, :flag => true, :is_new => 1), :class => 'courseMenuSetting', :title =>"#{l(:label_message_new)}") if User.current.member_of_course?(@course) && @course.boards.first %>
         </div>
+        <% end %>
+        <% unless show_nav?(course_feedback_count) %>
         <div class="subNav">
           <%= link_to l(:label_course_feedback), course_feedback_path(@course), :class => "f14 c_blue02" %>
           <%= link_to "(#{course_feedback_count})", course_feedback_path(@course), :class => "subnav_num c_orange", :id => "course_jour_count"%>
+          <%= link_to "", course_feedback_path(@course), :class => 'courseMenuSetting', :title =>"#{l(:label_course_feedback)}", :id => "course_jour_count"%>
         </div>
+        <% end %>
+        <% unless show_nav?(course_poll_count) %>
         <div class="subNav">
           <%= link_to l(:label_poll), poll_index_path(:polls_type => "Course", :polls_group_id => @course.id), :class => " f14 c_blue02"%>
           <%= link_to "(#{course_poll_count})", poll_index_path(:polls_type => "Course", :polls_group_id => @course.id), :class => "subnav_num c_orange" %>
-          <%= link_to( "+#{l(:label_new_poll)}", new_poll_path(:polls_type => "Course",:polls_group_id => @course.id), :class => 'subnav_green c_white') if is_teacher %>
+          <%= link_to( "", new_poll_path(:polls_type => "Course",:polls_group_id => @course.id), :class => 'courseMenuSetting', :title =>"#{l(:label_new_poll)}") if is_teacher %>
         </div>
+        <% end %>
+        <% unless show_nav?(User.current.allowed_to?(:as_teacher,@course)? @course.exercises.count : @course.exercises.where("exercise_status=2").count) %>
         <div class="subNav">
           <%= link_to "在线测验", exercise_index_path(:course_id => @course.id), :class => " f14 c_blue02"%>
           <%= link_to "(#{User.current.allowed_to?(:as_teacher,@course)? @course.exercises.count : @course.exercises.where("exercise_status=2").count})", exercise_index_path(:course_id => @course.id), :class => "subnav_num c_orange" %>
-          <%= link_to( "+新建试卷", new_exercise_path(:course_id => @course.id), :class => 'subnav_green c_white') if is_teacher %>
+          <%= link_to( "", new_exercise_path(:course_id => @course.id), :class => 'courseMenuSetting', :title =>"新建试卷") if is_teacher %>
         </div>
+        <% end %>
+        <%# 工具栏展开 %>
+        <% if @course.homework_commons.count == 0 || @course.news.count == 0 || course_file_num == 0 || course_poll_count == 0 || @course.exercises.count == 0 ||
+             course_feedback_count == 0 || @course.exercises.count == 0 || (@course.boards.first ? @course.boards.first.topics.count : 0) == 0 %>
+            <div class="subNav subNav_jiantou" id="expand_tools_expand" nhtype="toggle4cookie" data-id="expand_tool_more" data-target="#navContentCourse" data-val="retract"><%= l(:label_project_more) %></div>
+            <ul class="navContent" id="navContentCourse">
+              <%= render 'courses/tool_expand', :locals => {:is_teacher => is_teacher, :course_file_num => course_file_num} %>
+            </ul>
+        <% end %>
       </div><!--项目侧导航 end-->
+      <%# 课程贡献榜 %>
       <div class="cl"></div>
+      <% unless contributor_course_scor(@course.id).count == 0 %>
+        <ul class="rankList">
+        <h4>课程贡献榜</h4>
+        <% contributor_course_scor(@course.id).each do |contributor_score| %>
+          <% unless contributor_score.total_score ==0 %>
+            <li> <a href="javascript:void:(0);"><%=link_to image_tag(url_to_avatar(contributor_score.user), :width => "35", :height => "35", :class=> "rankPortrait"),user_path(contributor_score.user) %></a>
+              <p><a href="javascript:void:(0);"><%=link_to contributor_score.user, user_path(contributor_score.user), :title => contributor_score.user %></a></p>
+              <p><span class="c_green" style="cursor:pointer">
+                <a onmouseover ="message_titile_show($(this),event)" onmouseout ="message_titile_hide($(this))" class="c_green"><%= contributor_score.total_score.to_i %></a></span></p>
+              <div  style="display: none" class="numIntro">
+                <% unless contributor_score.resource_num == 0 %>
+                    课程资源：<%= contributor_score.resource_num %><br />
+                <% end %>
+                <% unless contributor_score.message_num == 0 %>
+                    课程讨论：<%= contributor_score.message_num %><br />
+                <% end %>
+                <% unless contributor_score.message_reply_num == 0 %>
+                    评论回复：<%= contributor_score.message_reply_num %><br />
+                <% end %>
+                <% unless contributor_score.journal_num == 0 %>
+                    课程留言：<%= contributor_score.journal_num %><br />
+                <% end %>
+                <% unless contributor_score.news_reply_num == 0 %>
+                    课程通知：<%= contributor_score.news_reply_num %><br />
+                <% end %>
+              </div>
+            </li>
+          <% end %>
+        <% end %>
+        <div class="cl"></div>
+      </ul>
+      <% end %>
+
+      <% hero_homework_scores = hero_homework_score(@course, "desc") %>
+      <% unless hero_homework_scores.map(&:score).detect{|s| s != nil}.nil? %>
+        <ul class="rankList">
+          <h4>课程英雄榜</h4>
+          <% hero_homework_scores.each do |student_score| %>
+              <% unless student_score.score.nil? %>
+                  <li> <a href="javascript:void:(0);"><%=link_to image_tag(url_to_avatar(student_score.user), :width => "35", :height => "35", :class=> "rankPortrait"),user_path(student_score.user) %></a>
+                    <p><a href="javascript:void:(0);"><%=link_to student_score.user, user_path(student_score.user), :title => student_score.user %></a></p>
+                    <p><span class="c_red" style="cursor:pointer" title="作业总分：<%= student_score.score  %>"><%= student_score.score.to_i %></span></p>
+                  </li>
+              <% end %>
+          <% end %>
+          <div class="cl"></div>
+        </ul>
+    <% end %>
+
       <div class="project_intro">
         <div id="course_description" class="course_description">
           <h4 ><%= l(:label_course_brief_introduction)%>：</h4>
@@ -278,6 +353,16 @@
             $('#ajax-modal').parent().css("top","").css("left","");
             $('#ajax-modal').parent().addClass("popbox_polls");
     }
+//    鼠标经过的时候显示内容
+    function message_titile_show(obj,e)
+    {
+        obj.parent().parent().next("div").show();
+        obj.parent().next("div").css("top",e.pageY).css("left",e.pageX).css("position","absolute");
+    }
+    function message_titile_hide(obj)
+    {
+        obj.parent().parent().next("div").hide();
+    }
 
 </script>
 
diff --git a/app/views/projects/_development_group.html.erb b/app/views/projects/_development_group.html.erb
index ec8562885..83b65fe90 100644
--- a/app/views/projects/_development_group.html.erb
+++ b/app/views/projects/_development_group.html.erb
@@ -47,7 +47,7 @@
     <% else %>
         <%= link_to l(:project_module_repository),({:controller => 'repositories', :action => 'show', :id => @project, :repository_id => gitlab_repository(@project).identifier}), :class => "f14 c_blue02" %>
     <% end %>
-    <a class="subnav_num">(<%= @project.repositories.count %>)</a>
+    <!--<a class="subnav_num">(<%= @project.repositories.count %>)</a>-->
     <% if (User.current.admin? || User.current.allowed_to?({:controller => 'projects', :action => 'settings'}, @project)) && rep_is_gitlab?(@project) %>
         <%= link_to "+"+l(:project_gitlab_create_repository), url_for(:controller => 'projects', :action => 'settings', :id => @project.id, :tab=>'repositories') , :class => "subnav_green" %>
     <% end %>
diff --git a/app/views/projects/settings/_join_org.html.erb b/app/views/projects/settings/_join_org.html.erb
index 982e7b79e..6270e5477 100644
--- a/app/views/projects/settings/_join_org.html.erb
+++ b/app/views/projects/settings/_join_org.html.erb
@@ -12,11 +12,11 @@
       <span class="pic_add fl mr5 mt3"></span><span class="f14 fontBlue fl">关联组织</span>
       <div class="cl mb5"></div>
       <%= form_tag url_for(:controller => 'org_projects', :action => 'create', :project_id => @project.id), :id => 'join_orgs_for_project', :remote => true do %>
-        <input type="text" name="orgs" class="searchOrg mb5 ml20" placeholder="请输入组织名称" />
-        <div id="search_orgs_result_list" class="ml20"></div>
-        <ul id="paginator" class="wlist ml20" style="float:none;"></ul>
+      <input type="text" name="orgs" class="searchOrg mb5 ml20" placeholder="请输入组织名称" />
+      <div id="search_orgs_result_list" class="ml20"></div>
+      <ul id="paginator" class="wlist ml20" style="float:none;"></ul>
         <a href="javascript:void(0);" class="saveBtn db fl ml20 mr15 mb5" onclick="join_org(<%= @project.id %>);">关联</a>
-        <a href="javascript:void(0);" class="cancelBtn db fl" onclick="cancel_join_orgs();">取消</a>
+      <a href="javascript:void(0);" class="cancelBtn db fl" onclick="cancel_join_orgs();">取消</a>
       <% end %>
     </div>
     <div class="relatedList fr">
diff --git a/app/views/projects/show.html.erb b/app/views/projects/show.html.erb
index 22317dc91..a3a2845f8 100644
--- a/app/views/projects/show.html.erb
+++ b/app/views/projects/show.html.erb
@@ -111,4 +111,4 @@
         <% end %>
     <% end %>
 <% end %>
-<%= paginate @events_pages, :left => 3, :right => 3 %>
\ No newline at end of file
+<%= paginate @events_pages, :left => 3, :right => 3 %>
diff --git a/app/views/repositories/_breadcrumbs.html.erb b/app/views/repositories/_breadcrumbs.html.erb
index 84111afeb..2c675cc1e 100644
--- a/app/views/repositories/_breadcrumbs.html.erb
+++ b/app/views/repositories/_breadcrumbs.html.erb
@@ -1,12 +1,12 @@
 <div class="git_usr_title">
+  <%=link_to @project.owner, user_path(@project.owner), :class => "repository-title-dec" %>
+  /
   <span><%= link_to @repository.identifier.present? ? h(@repository.identifier) : 'root',
                     {:action => 'show', :id => @project,
                      :repository_id => @repository.identifier_param,
                      :path => nil, :rev => @rev },
                      :class => "repository-title-dec"
   %>
-    /
-    <%=link_to @project.owner, user_path(@project.owner), :class => "repository-title-dec" %>
   </span>
 </div>
 
diff --git a/app/views/repositories/_revisions.html.erb b/app/views/repositories/_revisions.html.erb
index 837096c89..50c973fb4 100644
--- a/app/views/repositories/_revisions.html.erb
+++ b/app/views/repositories/_revisions.html.erb
@@ -13,6 +13,7 @@
         <!--<th><%= l(:field_comments) %></th>-->
       <!--</tr></thead>-->
       <tbody>
+
       <% show_diff = revisions.size > 1 %>
       <% line_num = 1 %>
       <% revisions.each do |changeset| %>
@@ -48,4 +49,9 @@
       <%#= submit_tag(l(:label_view_diff), :name => nil, :class=>"c_blue") if show_diff %>
     </p>
 
+    <ul class="wlist">
+      <%= pagination_links_full commits_pages, commits_count, :per_page_links => false, :remote => false, :flag => true%>
+    </ul>
+
 <% end %>
+
diff --git a/app/views/repositories/changes.html.erb b/app/views/repositories/changes.html.erb
index 428799f07..3780df172 100644
--- a/app/views/repositories/changes.html.erb
+++ b/app/views/repositories/changes.html.erb
@@ -14,7 +14,9 @@
 <%= render_properties(@properties) %>
 
 <div class="mt10">
-    <%= render(:partial => 'revisions', :locals => {:project => @project, :path => @path, :revisions => @commits, :entry => @entry }) unless @commits.empty? %>
+
+  <%= render(:partial => 'revisions', :locals => {:project => @project, :path => @path ,:revisions => @commits, :entry => @entry ,:commits_pages =>@commits_pages , :commits_count => @commits_count}) unless @commits.empty? %>
+
 </div>
 <% content_for :header_tags do %>
 <%=   stylesheet_link_tag "scm" %>
diff --git a/app/views/repositories/forked.html.erb b/app/views/repositories/forked.html.erb
new file mode 100644
index 000000000..2860b9898
--- /dev/null
+++ b/app/views/repositories/forked.html.erb
@@ -0,0 +1,10 @@
+<div class="project_r_h">
+  <div class="fl"><h2 class="project_h2_repository"><%= render :partial => 'breadcrumbs', :locals => {:path => @path, :kind => 'dir', :revision => @rev} %></h2></div>
+</div>
+<%= form_for('forked',:url =>  {:controller => 'repositories', :action => 'forked'},:method => "post") do |f| %>
+    <input type="text" name="repo_name"/>
+    <button type="submit">确定</button>
+<% end %>
+<%= @project.id %>
+<%= @repository.id %>
+<%= User.current %>
diff --git a/app/views/repositories/show.html.erb b/app/views/repositories/show.html.erb
index 9601e5188..e06542cba 100644
--- a/app/views/repositories/show.html.erb
+++ b/app/views/repositories/show.html.erb
@@ -26,21 +26,30 @@
       <a href="javascript:void(0);" class="clone_btn mt5" onclick="jsCopy()"><span class="vl_copy" title="点击复制版本库地址"></span></a>
       <div class="fl mt5 ml15"><a href="javascript:void(0);" class="vl_btn fb" onclick="zip()"><span class="vl_zip"></span>ZIP</a> </div>
       <div class="fr mt5"><a href="javascript:void(0);" class="vl_btn fb" onclick="zip()"><span class="vl_fork"></span>Fork</a> <span href="javascript:void(0);" class="vl_btn_2 fb">0</span> </div>
+      <!--<div class="fr mt5"><a href="javascript:void(0);" class="vl_btn fb" onclick="zip()"><span class="vl_fork"></span><%= link_to "Fork", :controller => 'repositories', :action => 'forked' %></a> <span href="javascript:void(0);" class="vl_btn_2 fb">0</span> </div>-->
       <div class="cl"></div>
       <div class="recordBanner mt10">
         <% if @changesets && !@changesets.empty? %>
-            <%= image_tag(url_to_avatar(user_commit_rep(@changesets_latest_coimmit.author_email)),  :width => "25", :height => "25", :class => "fl portraitRadius mt2 ml4 mr5") %>
-            <span class="fl"><div class="fb fontGrey3 mr5 fl"><%=link_to user_commit_rep(@changesets_latest_coimmit.author_email), user_path(user_commit_rep(@changesets_latest_coimmit.author_email)) %></div>
-                <div class="fl">提交于<%= time_tag(@changesets_latest_coimmit.created_at) %>：</div>
-                <div class="commit_content_dec fl" title="<%= @changesets_latest_coimmit.comments %>"><%= @changesets_latest_coimmit.message %></div>
-            </span>
+            <% if !user_commit_rep(@changesets_latest_coimmit.author_email).nil? %>
+                <%= image_tag(url_to_avatar(user_commit_rep(@changesets_latest_coimmit.author_email)),  :width => "25", :height => "25", :class => "fl portraitRadius mt2 ml4 mr5") %>
+                <span class="fl"><div class="fb fontGrey3 mr5 fl"><%=link_to user_commit_rep(@changesets_latest_coimmit.author_email), user_path(user_commit_rep(@changesets_latest_coimmit.author_email)) %></div>
+                    <div class="fl">提交于<%= time_tag(@changesets_latest_coimmit.created_at) %>：</div>
+                    <div class="commit_content_dec fl" title="<%= @changesets_latest_coimmit.comments %>"><%= @changesets_latest_coimmit.message %></div>
+                </span>
+            <% else %>
+                 <span class="fl"><div class="fb fontGrey3 mr5 fl"><%=@changesets_latest_coimmit.author_email %></div>
+                    <div class="fl">提交于<%= time_tag(@changesets_latest_coimmit.created_at) %>：</div>
+                    <div class="commit_content_dec fl" title="<%= @changesets_latest_coimmit.comments %>"><%= @changesets_latest_coimmit.message %></div>
+                </span>
+            <%end%>
         <% end %>
         <span class="fr mr5 "><font class="fb ml2 mr2 vl_branch mt2">
             <%= @repository.branches.count %></font> 个分支
         </span>
 
         <span class="fr mr5"><font class="fb ml2 mr2 vl_commit">
-            <%=link_to @changesets_all_count, {:action => 'changes', :path => to_path_param(@path), :id => @project, :repository_id => @repository.identifier_param, :rev => @rev} %></font> 提交
+            <%=link_to @changesets_all_count, {:action => 'changes', :path => to_path_param(@path), :id => @project, :repository_id => @repository.identifier_param, :rev => @rev,:page=>1 ,:commit_count =>"#{@changesets_all_count}"} %></font> 提交
+
         </span>
       </div>
   <% end %>
diff --git a/app/views/student_work/_has_commit_work.html.erb b/app/views/student_work/_has_commit_work.html.erb
new file mode 100644
index 000000000..d324f3aaf
--- /dev/null
+++ b/app/views/student_work/_has_commit_work.html.erb
@@ -0,0 +1,24 @@
+<div id="popbox02">
+  <div class="ni_con">
+    <div><p align='center' style='margin-top: 35px'>您已提交过作品，请不要重复提交，如果想修改作品请点击编辑。</p></div>
+    <div class="cl"></div>
+    <div class="ni_btn mt10">
+      <a href="javascript:" class="tijiao" onclick="clickOK();" style="margin-bottom: 15px;margin-top:15px;" >
+        编&nbsp;&nbsp;辑
+      </a>
+      <a href="javascript:" class="tijiao" onclick="clickCanel();" style="margin-bottom: 15px;margin-top:15px;" >
+        取&nbsp;&nbsp;消
+      </a>
+    </div>
+    </div>
+</div>
+
+<script type="text/javascript">
+    function clickOK() {
+        window.location.href = '<%= edit_student_work_path(@work.id)%>';
+    }
+    function clickCanel() {
+        hideModal('#popbox02');
+        window.location.href = '<%= student_work_index_url(:homework => @homework.id)%>';
+    }
+</script>
\ No newline at end of file
diff --git a/app/views/student_work/create.js.erb b/app/views/student_work/create.js.erb
index 42b1db8b8..afd8617aa 100644
--- a/app/views/student_work/create.js.erb
+++ b/app/views/student_work/create.js.erb
@@ -1,4 +1,12 @@
-<% if @submit_result%>
+<% if @has_commit %>
+    $('#ajax-modal').html('<%= escape_javascript(render :partial => 'student_work/has_commit_work') %>');
+    showModal('ajax-modal', '500px');
+    $('#ajax-modal').siblings().remove();
+    $('#ajax-modal').before("<span style='float: right;cursor:pointer;'>" +
+            "<a href='javascript:' onclick='clickCanel();'><img src='/images/bid/close.png' width='26px' height='26px' /></a></span>");
+    $('#ajax-modal').parent().css("top","").css("left","");
+    $('#ajax-modal').parent().addClass("anonymos");
+<% elsif @submit_result%>
     $('#ajax-modal').html('<%= escape_javascript(render :partial => 'student_work/work_information') %>');
     showModal('ajax-modal', '500px');
     $('#ajax-modal').siblings().remove();
diff --git a/config/configuration.yml b/config/configuration.yml
index 7c62e8988..3790045aa 100644
--- a/config/configuration.yml
+++ b/config/configuration.yml
@@ -201,7 +201,7 @@ default:
   judge_server: 'http://judge.trustie.net/'
 
   # Git's url
-  gitlab_address: 'http://git.trustie.net'
+  gitlab_address: 'http://gitfast.trustie.net'
 
 # specific configuration options for production environment
 # that overrides the default ones
diff --git a/config/initializers/gitlab_config.rb b/config/initializers/gitlab_config.rb
index 6e015d4b8..c82b2edff 100644
--- a/config/initializers/gitlab_config.rb
+++ b/config/initializers/gitlab_config.rb
@@ -1,8 +1,8 @@
 Gitlab.configure do |config|
   # config.endpoint       = 'http://192.168.41.130:3000/trustie/api/v3' # API endpoint URL, default: ENV['GITLAB_API_ENDPOINT']
   # config.private_token  = 'cK15gUDwvt8EEkzwQ_63'       # user's private token, default: ENV['GITLAB_API_PRIVATE_TOKEN']
-  config.endpoint       = 'http://git.trustie.net/api/v3' # API endpoint URL, default: ENV['GITLAB_API_ENDPOINT']
-  config.private_token  = 'kZUYYbAY12QSQ2Tx1zes'       # user's private token, default: ENV['GITLAB_API_PRIVATE_TOKEN']
+  config.endpoint       = 'http://gitfast.trustie.net/api/v3' # API endpoint URL, default: ENV['GITLAB_API_ENDPOINT']
+  config.private_token  = 'fPc_gBmEiSANve8TCfxW'       # user's private token, default: ENV['GITLAB_API_PRIVATE_TOKEN']
   # Optional
   # config.user_agent   = 'Custom User Agent'          # user agent, default: 'Gitlab Ruby Gem [version]'
   # config.sudo         = 'user'                       # username for sudo mode, default: nil
diff --git a/config/locales/courses/zh.yml b/config/locales/courses/zh.yml
index 585ef7bec..16d49ea1f 100644
--- a/config/locales/courses/zh.yml
+++ b/config/locales/courses/zh.yml
@@ -94,4 +94,6 @@ zh:
   label_user_name: "用户名称"
   #setting end
 
-  label_course_poll: 课程问卷
\ No newline at end of file
+  label_course_poll: 课程问卷
+
+  label_homework_committed: 你已经提交过作品，如果你想修改作品的话，可以在作品列表页面对作品信息进行修改。
\ No newline at end of file
diff --git a/config/locales/projects/zh.yml b/config/locales/projects/zh.yml
index 1a18e5a14..aebdebd2c 100644
--- a/config/locales/projects/zh.yml
+++ b/config/locales/projects/zh.yml
@@ -89,6 +89,8 @@ zh:
   project_module_repository: 版本库
   project_module_create_repository: 创建版本库
   project_gitlab_create_repository: 新版本库
+  project_gitlab_create_double_message: 亲，您已经创建了一个同名的版本库，换个特别点的名字同名的概率就会变小哦~
+  project_gitlab_fork_double_message: 亲，您已经有了一个相同名字的版本库，所以不能fork改版本库~
 
 
   label_project_more: 更多
diff --git a/config/routes.rb b/config/routes.rb
index e84225464..8998d50f2 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -643,6 +643,7 @@ RedmineApp::Application.routes.draw do
         # get 'create', :via=>[:get, :post]
       end
     end
+
     match 'wiki/index',  :via => :get
     resources :wiki, :except => [:index, :new, :create], :as => 'wiki_page' do
       member do
@@ -740,6 +741,7 @@ RedmineApp::Application.routes.draw do
 
   get 'projects/:id/repository/changes(/*path(.:ext))', :to => 'repositories#changes'
 
+  get 'projects/:id/repository/forked', :to => 'repositories#forked'
   get 'projects/:id/repository/revisions', :to => 'repositories#revisions'
   get 'projects/:id/repository/revisions/:rev', :to => 'repositories#revision'
   get 'projects/:id/repository/revision', :to => 'repositories#revision'
diff --git a/db/migrate/20151118031602_copy_course_activities_to_org_activities.rb b/db/migrate/20151118031602_copy_course_activities_to_org_activities.rb
index 2b5d6ba1e..08f952afa 100644
--- a/db/migrate/20151118031602_copy_course_activities_to_org_activities.rb
+++ b/db/migrate/20151118031602_copy_course_activities_to_org_activities.rb
@@ -1,25 +1,25 @@
 class CopyCourseActivitiesToOrgActivities < ActiveRecord::Migration
   def up
-    # count = CourseActivity.all.count/30 + 1
-    # for i in 1 ... count do
-    #   transaction do
-    #     CourseActivity.page(i).per(30).each do |course_act|
-    #       if course_act.course_act_type == 'Message' && !course_act.course_act.parent_id.nil?
-    #         org_activity = OrgActivity.where("org_act_type = 'Message' and org_act_id = #{course_act.course_act.parent.id}").first
-    #         org_activity.created_at = course_act.created_at
-    #         org_activity.save
-    #       else
-    #         OrgActivity.create(:user_id => course_act.user_id,
-    #                            :org_act_id => course_act.course_act_id,
-    #                            :org_act_type => course_act.course_act_type,
-    #                            :container_id => course_act.course_id,
-    #                            :container_type => 'Course',
-    #                            :created_at => course_act.created_at,
-    #                            :updated_at => course_act.updated_at)
-    #       end
-    #     end
-    #   end
-    # end
+    count = CourseActivity.all.count/30 + 1
+    for i in 1 ... count do
+      transaction do
+        CourseActivity.page(i).per(30).each do |course_act|
+          if course_act.course_act_type == 'Message' && !course_act.course_act.parent_id.nil?
+            org_activity = OrgActivity.where("org_act_type = 'Message' and org_act_id = #{course_act.course_act.parent.id}").first
+            org_activity.created_at = course_act.created_at
+            org_activity.save
+          else
+            OrgActivity.create(:user_id => course_act.user_id,
+                               :org_act_id => course_act.course_act_id,
+                               :org_act_type => course_act.course_act_type,
+                               :container_id => course_act.course_id,
+                               :container_type => 'Course',
+                               :created_at => course_act.created_at,
+                               :updated_at => course_act.updated_at)
+          end
+        end
+      end
+    end
   end
 
   def down
diff --git a/db/migrate/20151120134208_changecolumn_of_exercise_question.rb b/db/migrate/20151120134208_changecolumn_of_exercise_question.rb
new file mode 100644
index 000000000..79bf255be
--- /dev/null
+++ b/db/migrate/20151120134208_changecolumn_of_exercise_question.rb
@@ -0,0 +1,9 @@
+class ChangecolumnOfExerciseQuestion < ActiveRecord::Migration
+  def up
+    change_column :exercise_questions, :question_title, :text
+    change_column :exercises, :exercise_name, :text
+  end
+
+  def down
+  end
+end
diff --git a/db/migrate/20151125064914_create_course_contributor_scores.rb b/db/migrate/20151125064914_create_course_contributor_scores.rb
new file mode 100644
index 000000000..0d16ac68b
--- /dev/null
+++ b/db/migrate/20151125064914_create_course_contributor_scores.rb
@@ -0,0 +1,16 @@
+class CreateCourseContributorScores < ActiveRecord::Migration
+  def change
+    create_table :course_contributor_scores do |t|
+      t.integer :course_id
+      t.integer :user_id
+      t.integer :message_num
+      t.integer :message_reply_num
+      t.integer :news_reply_num
+      t.integer :resource_num
+      t.integer :journal_num
+      t.integer :journal_reply_num
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/migrate/20151126160252_add_total_score_to_course_contributor_score.rb b/db/migrate/20151126160252_add_total_score_to_course_contributor_score.rb
new file mode 100644
index 000000000..80cf0bb72
--- /dev/null
+++ b/db/migrate/20151126160252_add_total_score_to_course_contributor_score.rb
@@ -0,0 +1,5 @@
+class AddTotalScoreToCourseContributorScore < ActiveRecord::Migration
+  def change
+    add_column :course_contributor_scores, :total_score, :integer
+  end
+end
diff --git a/db/migrate/20151127011351_add_course_contributor_total_score.rb b/db/migrate/20151127011351_add_course_contributor_total_score.rb
new file mode 100644
index 000000000..2606864d8
--- /dev/null
+++ b/db/migrate/20151127011351_add_course_contributor_total_score.rb
@@ -0,0 +1,36 @@
+class AddCourseContributorTotalScore < ActiveRecord::Migration
+  def up
+    # course_count = Course.all.count / 30 + 1
+    # transaction do
+    #   for i in 1 ... course_count do i
+    Course.all.each do |course|
+      if course.course_activities.count > 1
+        course.student.each do |s|
+          puts course.id
+          puts course.name
+          puts s.student_id
+          # board_count = CourseActivity.where("user_id =? and course_id =? and course_act_type =?",s.student_id, course.id, "Message").count * 2
+          board_count = Message.find_by_sql("select DISTINCT me.* from messages me, boards b where b.id = me.board_id and b.course_id = #{course.id} and b.project_id = '-1' and me.author_id = #{s.student_id} and me.parent_id is null;").count * 2
+          message_reply_count = Message.find_by_sql("select DISTINCT me.* from messages me, boards b where b.id = me.board_id and b.course_id = #{course.id} and b.project_id = '-1' and me.author_id = #{s.student_id} and me.parent_id is not null").count * 1
+          common_reply_count = Comment.find_by_sql("select cm.* from comments cm, news n where cm.author_id = #{s.student_id} and n.course_id = #{course.id} and cm.commented_id = n.id and cm.commented_type ='News'").count * 1
+          # attachment_count = CourseActivity.where("user_id =? and course_id =? and course_act_type =?", s.student_id, course.id, "Attachment").count * 5
+          attachment_count = Attachment.find_by_sql("SELECT * FROM `attachments` where container_id = #{course.id} and author_id = #{s.student_id};").count * 5
+          journal_count = JournalsForMessage.where("user_id =? and jour_id =? and jour_type =? ", s.student_id, course.id, "Course").count * 1
+          # journal_count = CourseActivity.where("user_id =? and course_id =? and course_act_type =?", s.student_id, course.id, "JournalsForMessage").count * 1
+          # journal_reply_count = JournalsForMessage.where("user_id =? and jour_id =? and jour_type =? and status =?", s.student_id, course.id, "Course",1).count * 1
+          total =   board_count + message_reply_count + common_reply_count + attachment_count + journal_count
+          if total !=0
+            CourseContributorScore.create(:course_id => course.id, :user_id => s.student_id, :message_num => board_count, :message_reply_num => message_reply_count,
+                                          :news_reply_num => common_reply_count, :resource_num => attachment_count, :journal_num => journal_count, :journal_reply_num => 0, :total_score => total)
+          end
+
+        end
+      end
+    end
+    #   end
+    # end
+  end
+
+  def down
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 95f79b84b..603ca6857 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -1,1817 +1,1887 @@
-# encoding: UTF-8
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# Note that this schema.rb definition is the authoritative source for your
-# database schema. If you need to create the application database on another
-# system, you should be using db:schema:load, not running all the migrations
-# from scratch. The latter is a flawed and unsustainable approach (the more migrations
-# you'll amass, the slower it'll run and the greater likelihood for issues).
-#
-# It's strongly recommended to check this file into your version control system.
-
-ActiveRecord::Schema.define(:version => 20151120134208) do
-
-  create_table "activities", :force => true do |t|
-    t.integer  "act_id",                                  :null => false
-    t.string   "act_type",                                :null => false
-    t.integer  "user_id",                                 :null => false
-    t.integer  "activity_container_id"
-    t.string   "activity_container_type", :default => ""
-    t.datetime "created_at"
-  end
-
-  add_index "activities", ["act_id", "act_type"], :name => "index_activities_on_act_id_and_act_type"
-  add_index "activities", ["user_id", "act_type"], :name => "index_activities_on_user_id_and_act_type"
-  add_index "activities", ["user_id"], :name => "index_activities_on_user_id"
-
-  create_table "activity_notifies", :force => true do |t|
-    t.integer  "activity_container_id"
-    t.string   "activity_container_type"
-    t.integer  "activity_id"
-    t.string   "activity_type"
-    t.integer  "notify_to"
-    t.datetime "created_on"
-    t.integer  "is_read"
-  end
-
-  add_index "activity_notifies", ["activity_container_id", "activity_container_type"], :name => "index_an_activity_container_id"
-  add_index "activity_notifies", ["created_on"], :name => "index_an_created_on"
-  add_index "activity_notifies", ["notify_to"], :name => "index_an_notify_to"
-
-  create_table "api_keys", :force => true do |t|
-    t.string   "access_token"
-    t.datetime "expires_at"
-    t.integer  "user_id"
-    t.boolean  "active",       :default => true
-    t.datetime "created_at",                     :null => false
-    t.datetime "updated_at",                     :null => false
-  end
-
-  add_index "api_keys", ["access_token"], :name => "index_api_keys_on_access_token"
-  add_index "api_keys", ["user_id"], :name => "index_api_keys_on_user_id"
-
-  create_table "applied_projects", :force => true do |t|
-    t.integer "project_id", :null => false
-    t.integer "user_id",    :null => false
-  end
-
-  create_table "apply_project_masters", :force => true do |t|
-    t.integer  "user_id"
-    t.string   "apply_type"
-    t.integer  "apply_id"
-    t.integer  "status"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
-  create_table "attachments", :force => true do |t|
-    t.integer  "container_id"
-    t.string   "container_type", :limit => 30
-    t.string   "filename",                     :default => "", :null => false
-    t.string   "disk_filename",                :default => "", :null => false
-    t.integer  "filesize",                     :default => 0,  :null => false
-    t.string   "content_type",                 :default => ""
-    t.string   "digest",         :limit => 40, :default => "", :null => false
-    t.integer  "downloads",                    :default => 0,  :null => false
-    t.integer  "author_id",                    :default => 0,  :null => false
-    t.datetime "created_on"
-    t.string   "description"
-    t.string   "disk_directory"
-    t.integer  "attachtype",                   :default => 1
-    t.integer  "is_public",                    :default => 1
-    t.integer  "copy_from"
-    t.integer  "quotes"
-  end
-
-  add_index "attachments", ["author_id"], :name => "index_attachments_on_author_id"
-  add_index "attachments", ["container_id", "container_type"], :name => "index_attachments_on_container_id_and_container_type"
-  add_index "attachments", ["created_on"], :name => "index_attachments_on_created_on"
-
-  create_table "attachmentstypes", :force => true do |t|
-    t.integer "typeId",                 :null => false
-    t.string  "typeName", :limit => 50
-  end
-
-  create_table "auth_sources", :force => true do |t|
-    t.string  "type",              :limit => 30, :default => "",    :null => false
-    t.string  "name",              :limit => 60, :default => "",    :null => false
-    t.string  "host",              :limit => 60
-    t.integer "port"
-    t.string  "account"
-    t.string  "account_password",                :default => ""
-    t.string  "base_dn"
-    t.string  "attr_login",        :limit => 30
-    t.string  "attr_firstname",    :limit => 30
-    t.string  "attr_lastname",     :limit => 30
-    t.string  "attr_mail",         :limit => 30
-    t.boolean "onthefly_register",               :default => false, :null => false
-    t.boolean "tls",                             :default => false, :null => false
-    t.string  "filter"
-    t.integer "timeout"
-  end
-
-  add_index "auth_sources", ["id", "type"], :name => "index_auth_sources_on_id_and_type"
-
-  create_table "biding_projects", :force => true do |t|
-    t.integer  "project_id"
-    t.integer  "bid_id"
-    t.integer  "user_id"
-    t.string   "description"
-    t.datetime "created_at",  :null => false
-    t.datetime "updated_at",  :null => false
-    t.string   "reward"
-  end
-
-  create_table "bids", :force => true do |t|
-    t.string   "name"
-    t.string   "budget",                                    :null => false
-    t.integer  "author_id"
-    t.date     "deadline"
-    t.text     "description"
-    t.datetime "created_on",                                :null => false
-    t.datetime "updated_on",                                :null => false
-    t.integer  "commit"
-    t.integer  "reward_type"
-    t.integer  "homework_type"
-    t.integer  "parent_id"
-    t.string   "password"
-    t.integer  "is_evaluation"
-    t.integer  "proportion",                :default => 60
-    t.integer  "comment_status",            :default => 0
-    t.integer  "evaluation_num",            :default => 3
-    t.integer  "open_anonymous_evaluation", :default => 1
-  end
-
-  create_table "blog_comments", :force => true do |t|
-    t.integer  "blog_id",                            :null => false
-    t.integer  "parent_id"
-    t.string   "title",           :default => "",    :null => false
-    t.text     "content"
-    t.integer  "author_id"
-    t.integer  "comments_count",  :default => 0,     :null => false
-    t.integer  "last_comment_id"
-    t.datetime "created_on",                         :null => false
-    t.datetime "updated_on",                         :null => false
-    t.boolean  "locked",          :default => false
-    t.integer  "sticky",          :default => 0
-    t.integer  "reply_id"
-    t.datetime "created_at",                         :null => false
-    t.datetime "updated_at",                         :null => false
-  end
-
-  create_table "blogs", :force => true do |t|
-    t.string   "name",             :default => "", :null => false
-    t.text     "description"
-    t.integer  "position",         :default => 1
-    t.integer  "article_count",    :default => 0,  :null => false
-    t.integer  "comments_count",   :default => 0,  :null => false
-    t.integer  "last_comments_id"
-    t.integer  "parent_id"
-    t.integer  "author_id"
-    t.datetime "created_at",                       :null => false
-    t.datetime "updated_at",                       :null => false
-  end
-
-  create_table "boards", :force => true do |t|
-    t.integer "project_id",                      :null => false
-    t.string  "name",            :default => "", :null => false
-    t.string  "description"
-    t.integer "position",        :default => 1
-    t.integer "topics_count",    :default => 0,  :null => false
-    t.integer "messages_count",  :default => 0,  :null => false
-    t.integer "last_message_id"
-    t.integer "parent_id"
-    t.integer "course_id"
-  end
-
-  add_index "boards", ["last_message_id"], :name => "index_boards_on_last_message_id"
-  add_index "boards", ["project_id"], :name => "boards_project_id"
-
-  create_table "bug_to_osps", :force => true do |t|
-    t.integer  "osp_id"
-    t.integer  "relative_memo_id"
-    t.string   "description"
-    t.datetime "created_at",       :null => false
-    t.datetime "updated_at",       :null => false
-  end
-
-  create_table "changes", :force => true do |t|
-    t.integer "changeset_id",                               :null => false
-    t.string  "action",        :limit => 1, :default => "", :null => false
-    t.text    "path",                                       :null => false
-    t.text    "from_path"
-    t.string  "from_revision"
-    t.string  "revision"
-    t.string  "branch"
-  end
-
-  add_index "changes", ["changeset_id"], :name => "changesets_changeset_id"
-
-  create_table "changeset_parents", :id => false, :force => true do |t|
-    t.integer "changeset_id", :null => false
-    t.integer "parent_id",    :null => false
-  end
-
-  add_index "changeset_parents", ["changeset_id"], :name => "changeset_parents_changeset_ids"
-  add_index "changeset_parents", ["parent_id"], :name => "changeset_parents_parent_ids"
-
-  create_table "changesets", :force => true do |t|
-    t.integer  "repository_id", :null => false
-    t.string   "revision",      :null => false
-    t.string   "committer"
-    t.datetime "committed_on",  :null => false
-    t.text     "comments"
-    t.date     "commit_date"
-    t.string   "scmid"
-    t.integer  "user_id"
-  end
-
-  add_index "changesets", ["committed_on"], :name => "index_changesets_on_committed_on"
-  add_index "changesets", ["repository_id", "revision"], :name => "changesets_repos_rev", :unique => true
-  add_index "changesets", ["repository_id", "scmid"], :name => "changesets_repos_scmid"
-  add_index "changesets", ["repository_id"], :name => "index_changesets_on_repository_id"
-  add_index "changesets", ["user_id"], :name => "index_changesets_on_user_id"
-
-  create_table "changesets_issues", :id => false, :force => true do |t|
-    t.integer "changeset_id", :null => false
-    t.integer "issue_id",     :null => false
-  end
-
-  add_index "changesets_issues", ["changeset_id", "issue_id"], :name => "changesets_issues_ids", :unique => true
-
-  create_table "comments", :force => true do |t|
-    t.string   "commented_type", :limit => 30, :default => "", :null => false
-    t.integer  "commented_id",                 :default => 0,  :null => false
-    t.integer  "author_id",                    :default => 0,  :null => false
-    t.text     "comments"
-    t.datetime "created_on",                                   :null => false
-    t.datetime "updated_on",                                   :null => false
-  end
-
-  add_index "comments", ["author_id"], :name => "index_comments_on_author_id"
-  add_index "comments", ["commented_id", "commented_type"], :name => "index_comments_on_commented_id_and_commented_type"
-
-  create_table "contest_notifications", :force => true do |t|
-    t.text     "title"
-    t.text     "content"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
-  create_table "contesting_projects", :force => true do |t|
-    t.integer  "project_id"
-    t.string   "contest_id"
-    t.integer  "user_id"
-    t.string   "description"
-    t.datetime "created_at",  :null => false
-    t.datetime "updated_at",  :null => false
-    t.string   "reward"
-  end
-
-  create_table "contesting_softapplications", :force => true do |t|
-    t.integer  "softapplication_id"
-    t.integer  "contest_id"
-    t.integer  "user_id"
-    t.string   "description"
-    t.datetime "created_at",         :null => false
-    t.datetime "updated_at",         :null => false
-    t.string   "reward"
-  end
-
-  create_table "contestnotifications", :force => true do |t|
-    t.integer  "contest_id"
-    t.string   "title"
-    t.string   "summary"
-    t.text     "description"
-    t.integer  "author_id"
-    t.integer  "notificationcomments_count"
-    t.datetime "created_at",                 :null => false
-    t.datetime "updated_at",                 :null => false
-  end
-
-  create_table "contests", :force => true do |t|
-    t.string   "name"
-    t.string   "budget",      :default => ""
-    t.integer  "author_id"
-    t.date     "deadline"
-    t.string   "description"
-    t.integer  "commit"
-    t.string   "password"
-    t.datetime "created_on",                  :null => false
-    t.datetime "updated_on",                  :null => false
-  end
-
-  create_table "course_activities", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "course_id"
-    t.integer  "course_act_id"
-    t.string   "course_act_type"
-    t.datetime "created_at",      :null => false
-    t.datetime "updated_at",      :null => false
-  end
-
-  create_table "course_attachments", :force => true do |t|
-    t.string   "filename"
-    t.string   "disk_filename"
-    t.integer  "filesize"
-    t.string   "content_type"
-    t.string   "digest"
-    t.integer  "downloads"
-    t.string   "author_id"
-    t.string   "integer"
-    t.string   "description"
-    t.string   "disk_directory"
-    t.integer  "attachtype"
-    t.integer  "is_public"
-    t.datetime "created_at",                    :null => false
-    t.datetime "updated_at",                    :null => false
-    t.integer  "container_id",   :default => 0
-  end
-
-  create_table "course_groups", :force => true do |t|
-    t.string   "name"
-    t.integer  "course_id"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
-  create_table "course_infos", :force => true do |t|
-    t.integer  "course_id"
-    t.integer  "user_id"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
-  create_table "course_messages", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "course_id"
-    t.integer  "course_message_id"
-    t.string   "course_message_type"
-    t.integer  "viewed"
-    t.datetime "created_at",          :null => false
-    t.datetime "updated_at",          :null => false
-    t.string   "content"
-    t.integer  "status"
-  end
-
-  create_table "course_statuses", :force => true do |t|
-    t.integer  "changesets_count"
-    t.integer  "watchers_count"
-    t.integer  "course_id"
-    t.float    "grade",            :default => 0.0
-    t.integer  "course_ac_para",   :default => 0
-    t.datetime "created_at",                        :null => false
-    t.datetime "updated_at",                        :null => false
-  end
-
-  create_table "courses", :force => true do |t|
-    t.integer  "tea_id"
-    t.string   "name"
-    t.integer  "state"
-    t.string   "code"
-    t.integer  "time"
-    t.string   "extra"
-    t.datetime "created_at",                                   :null => false
-    t.datetime "updated_at",                                   :null => false
-    t.string   "location"
-    t.string   "term"
-    t.string   "string"
-    t.string   "password"
-    t.string   "setup_time"
-    t.string   "endup_time"
-    t.string   "class_period"
-    t.integer  "school_id"
-    t.text     "description"
-    t.integer  "status",                        :default => 1
-    t.integer  "attachmenttype",                :default => 2
-    t.integer  "lft"
-    t.integer  "rgt"
-    t.integer  "is_public",        :limit => 1, :default => 1
-    t.integer  "inherit_members",  :limit => 1, :default => 1
-    t.integer  "open_student",                  :default => 0
-    t.integer  "outline",                       :default => 0
-    t.integer  "publish_resource",              :default => 0
-  end
-
-  create_table "custom_fields", :force => true do |t|
-    t.string  "type",            :limit => 30, :default => "",    :null => false
-    t.string  "name",            :limit => 30, :default => "",    :null => false
-    t.string  "field_format",    :limit => 30, :default => "",    :null => false
-    t.text    "possible_values"
-    t.string  "regexp",                        :default => ""
-    t.integer "min_length",                    :default => 0,     :null => false
-    t.integer "max_length",                    :default => 0,     :null => false
-    t.boolean "is_required",                   :default => false, :null => false
-    t.boolean "is_for_all",                    :default => false, :null => false
-    t.boolean "is_filter",                     :default => false, :null => false
-    t.integer "position",                      :default => 1
-    t.boolean "searchable",                    :default => false
-    t.text    "default_value"
-    t.boolean "editable",                      :default => true
-    t.boolean "visible",                       :default => true,  :null => false
-    t.boolean "multiple",                      :default => false
-  end
-
-  add_index "custom_fields", ["id", "type"], :name => "index_custom_fields_on_id_and_type"
-
-  create_table "custom_fields_projects", :id => false, :force => true do |t|
-    t.integer "custom_field_id", :default => 0, :null => false
-    t.integer "project_id",      :default => 0, :null => false
-  end
-
-  add_index "custom_fields_projects", ["custom_field_id", "project_id"], :name => "index_custom_fields_projects_on_custom_field_id_and_project_id", :unique => true
-
-  create_table "custom_fields_trackers", :id => false, :force => true do |t|
-    t.integer "custom_field_id", :default => 0, :null => false
-    t.integer "tracker_id",      :default => 0, :null => false
-  end
-
-  add_index "custom_fields_trackers", ["custom_field_id", "tracker_id"], :name => "index_custom_fields_trackers_on_custom_field_id_and_tracker_id", :unique => true
-
-  create_table "custom_values", :force => true do |t|
-    t.string  "customized_type", :limit => 30, :default => "", :null => false
-    t.integer "customized_id",                 :default => 0,  :null => false
-    t.integer "custom_field_id",               :default => 0,  :null => false
-    t.text    "value"
-  end
-
-  add_index "custom_values", ["custom_field_id"], :name => "index_custom_values_on_custom_field_id"
-  add_index "custom_values", ["customized_type", "customized_id"], :name => "custom_values_customized"
-
-  create_table "delayed_jobs", :force => true do |t|
-    t.integer  "priority",   :default => 0, :null => false
-    t.integer  "attempts",   :default => 0, :null => false
-    t.text     "handler",                   :null => false
-    t.text     "last_error"
-    t.datetime "run_at"
-    t.datetime "locked_at"
-    t.datetime "failed_at"
-    t.string   "locked_by"
-    t.string   "queue"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
-  add_index "delayed_jobs", ["priority", "run_at"], :name => "delayed_jobs_priority"
-
-  create_table "discuss_demos", :force => true do |t|
-    t.string   "title"
-    t.text     "body"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
-  create_table "documents", :force => true do |t|
-    t.integer  "project_id",                :default => 0,  :null => false
-    t.integer  "category_id",               :default => 0,  :null => false
-    t.string   "title",       :limit => 60, :default => "", :null => false
-    t.text     "description"
-    t.datetime "created_on"
-    t.integer  "user_id",                   :default => 0
-    t.integer  "is_public",                 :default => 1
-  end
-
-  add_index "documents", ["category_id"], :name => "index_documents_on_category_id"
-  add_index "documents", ["created_on"], :name => "index_documents_on_created_on"
-  add_index "documents", ["project_id"], :name => "documents_project_id"
-
-  create_table "dts", :primary_key => "Num", :force => true do |t|
-    t.string   "Defect",        :limit => 50
-    t.string   "Category",      :limit => 50
-    t.string   "File"
-    t.string   "Method"
-    t.string   "Module",        :limit => 20
-    t.string   "Variable",      :limit => 50
-    t.integer  "StartLine"
-    t.integer  "IPLine"
-    t.string   "IPLineCode",    :limit => 200
-    t.string   "Judge",         :limit => 15
-    t.integer  "Review",        :limit => 1
-    t.string   "Description"
-    t.text     "PreConditions", :limit => 2147483647
-    t.text     "TraceInfo",     :limit => 2147483647
-    t.text     "Code",          :limit => 2147483647
-    t.integer  "project_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-    t.integer  "id",                                  :null => false
-  end
-
-  create_table "enabled_modules", :force => true do |t|
-    t.integer "project_id"
-    t.string  "name",       :null => false
-    t.integer "course_id"
-  end
-
-  add_index "enabled_modules", ["project_id"], :name => "enabled_modules_project_id"
-
-  create_table "enumerations", :force => true do |t|
-    t.string  "name",          :limit => 30, :default => "",    :null => false
-    t.integer "position",                    :default => 1
-    t.boolean "is_default",                  :default => false, :null => false
-    t.string  "type"
-    t.boolean "active",                      :default => true,  :null => false
-    t.integer "project_id"
-    t.integer "parent_id"
-    t.string  "position_name", :limit => 30
-  end
-
-  add_index "enumerations", ["id", "type"], :name => "index_enumerations_on_id_and_type"
-  add_index "enumerations", ["project_id"], :name => "index_enumerations_on_project_id"
-
-  create_table "exercise_answers", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "exercise_question_id"
-    t.integer  "exercise_choice_id"
-    t.text     "answer_text"
-    t.datetime "created_at",           :null => false
-    t.datetime "updated_at",           :null => false
-  end
-
-  create_table "exercise_choices", :force => true do |t|
-    t.integer  "exercise_question_id"
-    t.text     "choice_text"
-    t.integer  "choice_position"
-    t.datetime "created_at",           :null => false
-    t.datetime "updated_at",           :null => false
-  end
-
-  create_table "exercise_questions", :force => true do |t|
-    t.text     "question_title"
-    t.integer  "question_type"
-    t.integer  "question_number"
-    t.integer  "exercise_id"
-    t.datetime "created_at",      :null => false
-    t.datetime "updated_at",      :null => false
-    t.integer  "question_score"
-  end
-
-  create_table "exercise_standard_answers", :force => true do |t|
-    t.integer  "exercise_question_id"
-    t.integer  "exercise_choice_id"
-    t.text     "answer_text"
-    t.datetime "created_at",           :null => false
-    t.datetime "updated_at",           :null => false
-  end
-
-  create_table "exercise_users", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "exercise_id"
-    t.integer  "score"
-    t.datetime "start_at"
-    t.datetime "created_at",  :null => false
-    t.datetime "updated_at",  :null => false
-    t.datetime "end_at"
-    t.integer  "status"
-  end
-
-  create_table "exercises", :force => true do |t|
-    t.text     "exercise_name"
-    t.text     "exercise_description"
-    t.integer  "course_id"
-    t.integer  "exercise_status"
-    t.integer  "user_id"
-    t.integer  "time"
-    t.datetime "created_at",           :null => false
-    t.datetime "updated_at",           :null => false
-    t.datetime "publish_time"
-    t.datetime "end_time"
-    t.integer  "show_result"
-  end
-
-  create_table "first_pages", :force => true do |t|
-    t.string   "web_title"
-    t.string   "title"
-    t.text     "description"
-    t.string   "page_type"
-    t.datetime "created_at",                    :null => false
-    t.datetime "updated_at",                    :null => false
-    t.integer  "sort_type"
-    t.integer  "image_width",  :default => 107
-    t.integer  "image_height", :default => 63
-    t.integer  "show_course",  :default => 1
-    t.integer  "show_contest", :default => 1
-  end
-
-  create_table "forge_activities", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "project_id"
-    t.integer  "forge_act_id"
-    t.string   "forge_act_type"
-    t.integer  "org_id"
-    t.datetime "created_at",     :null => false
-    t.datetime "updated_at",     :null => false
-  end
-
-  add_index "forge_activities", ["forge_act_id"], :name => "index_forge_activities_on_forge_act_id"
-
-  create_table "forge_messages", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "project_id"
-    t.integer  "forge_message_id"
-    t.string   "forge_message_type"
-    t.integer  "viewed"
-    t.datetime "created_at",         :null => false
-    t.datetime "updated_at",         :null => false
-    t.string   "secret_key"
-    t.integer  "status"
-  end
-
-  create_table "forums", :force => true do |t|
-    t.string   "name",                        :null => false
-    t.text     "description"
-    t.integer  "topic_count",  :default => 0
-    t.integer  "memo_count",   :default => 0
-    t.integer  "last_memo_id", :default => 0
-    t.integer  "creator_id",                  :null => false
-    t.datetime "created_at",                  :null => false
-    t.datetime "updated_at",                  :null => false
-    t.integer  "sticky"
-    t.integer  "locked"
-  end
-
-  create_table "groups_users", :id => false, :force => true do |t|
-    t.integer "group_id", :null => false
-    t.integer "user_id",  :null => false
-  end
-
-  add_index "groups_users", ["group_id", "user_id"], :name => "groups_users_ids", :unique => true
-
-  create_table "homework_attaches", :force => true do |t|
-    t.integer  "bid_id"
-    t.integer  "user_id"
-    t.datetime "created_at",                        :null => false
-    t.datetime "updated_at",                        :null => false
-    t.string   "reward"
-    t.string   "name"
-    t.text     "description"
-    t.integer  "state"
-    t.integer  "project_id",       :default => 0
-    t.float    "score",            :default => 0.0
-    t.integer  "is_teacher_score", :default => 0
-  end
-
-  add_index "homework_attaches", ["bid_id"], :name => "index_homework_attaches_on_bid_id"
-
-  create_table "homework_commons", :force => true do |t|
-    t.string   "name"
-    t.integer  "user_id"
-    t.text     "description"
-    t.date     "publish_time"
-    t.date     "end_time"
-    t.integer  "homework_type",     :default => 1
-    t.string   "late_penalty"
-    t.integer  "course_id"
-    t.datetime "created_at",                       :null => false
-    t.datetime "updated_at",                       :null => false
-    t.integer  "teacher_priority",  :default => 1
-    t.integer  "anonymous_comment", :default => 0
-  end
-
-  create_table "homework_detail_manuals", :force => true do |t|
-    t.float    "ta_proportion"
-    t.integer  "comment_status"
-    t.date     "evaluation_start"
-    t.date     "evaluation_end"
-    t.integer  "evaluation_num"
-    t.integer  "absence_penalty",    :default => 1
-    t.integer  "homework_common_id"
-    t.datetime "created_at",                        :null => false
-    t.datetime "updated_at",                        :null => false
-  end
-
-  create_table "homework_detail_programings", :force => true do |t|
-    t.string   "language"
-    t.text     "standard_code",      :limit => 2147483647
-    t.integer  "homework_common_id"
-    t.datetime "created_at",                                                :null => false
-    t.datetime "updated_at",                                                :null => false
-    t.float    "ta_proportion",                            :default => 0.1
-    t.integer  "question_id"
-  end
-
-  create_table "homework_evaluations", :force => true do |t|
-    t.string   "user_id"
-    t.string   "homework_attach_id"
-    t.datetime "created_at",         :null => false
-    t.datetime "updated_at",         :null => false
-  end
-
-  create_table "homework_for_courses", :force => true do |t|
-    t.integer "course_id"
-    t.integer "bid_id"
-  end
-
-  add_index "homework_for_courses", ["bid_id"], :name => "index_homework_for_courses_on_bid_id"
-  add_index "homework_for_courses", ["course_id"], :name => "index_homework_for_courses_on_course_id"
-
-  create_table "homework_tests", :force => true do |t|
-    t.text     "input"
-    t.text     "output"
-    t.integer  "homework_common_id"
-    t.datetime "created_at",         :null => false
-    t.datetime "updated_at",         :null => false
-    t.integer  "result"
-    t.text     "error_msg"
-  end
-
-  create_table "homework_users", :force => true do |t|
-    t.string   "homework_attach_id"
-    t.string   "user_id"
-    t.datetime "created_at",         :null => false
-    t.datetime "updated_at",         :null => false
-  end
-
-  create_table "invite_lists", :force => true do |t|
-    t.integer  "project_id"
-    t.integer  "user_id"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-    t.string   "mail"
-  end
-
-  create_table "issue_categories", :force => true do |t|
-    t.integer "project_id",                   :default => 0,  :null => false
-    t.string  "name",           :limit => 30, :default => "", :null => false
-    t.integer "assigned_to_id"
-  end
-
-  add_index "issue_categories", ["assigned_to_id"], :name => "index_issue_categories_on_assigned_to_id"
-  add_index "issue_categories", ["project_id"], :name => "issue_categories_project_id"
-
-  create_table "issue_relations", :force => true do |t|
-    t.integer "issue_from_id",                 :null => false
-    t.integer "issue_to_id",                   :null => false
-    t.string  "relation_type", :default => "", :null => false
-    t.integer "delay"
-  end
-
-  add_index "issue_relations", ["issue_from_id", "issue_to_id"], :name => "index_issue_relations_on_issue_from_id_and_issue_to_id", :unique => true
-  add_index "issue_relations", ["issue_from_id"], :name => "index_issue_relations_on_issue_from_id"
-  add_index "issue_relations", ["issue_to_id"], :name => "index_issue_relations_on_issue_to_id"
-
-  create_table "issue_statuses", :force => true do |t|
-    t.string  "name",               :limit => 30, :default => "",    :null => false
-    t.boolean "is_closed",                        :default => false, :null => false
-    t.boolean "is_default",                       :default => false, :null => false
-    t.integer "position",                         :default => 1
-    t.integer "default_done_ratio"
-  end
-
-  add_index "issue_statuses", ["is_closed"], :name => "index_issue_statuses_on_is_closed"
-  add_index "issue_statuses", ["is_default"], :name => "index_issue_statuses_on_is_default"
-  add_index "issue_statuses", ["position"], :name => "index_issue_statuses_on_position"
-
-  create_table "issues", :force => true do |t|
-    t.integer  "tracker_id",                              :null => false
-    t.integer  "project_id",                              :null => false
-    t.string   "subject",              :default => "",    :null => false
-    t.text     "description"
-    t.date     "due_date"
-    t.integer  "category_id"
-    t.integer  "status_id",                               :null => false
-    t.integer  "assigned_to_id"
-    t.integer  "priority_id",                             :null => false
-    t.integer  "fixed_version_id"
-    t.integer  "author_id",                               :null => false
-    t.integer  "lock_version",         :default => 0,     :null => false
-    t.datetime "created_on"
-    t.datetime "updated_on"
-    t.date     "start_date"
-    t.integer  "done_ratio",           :default => 0,     :null => false
-    t.float    "estimated_hours"
-    t.integer  "parent_id"
-    t.integer  "root_id"
-    t.integer  "lft"
-    t.integer  "rgt"
-    t.boolean  "is_private",           :default => false, :null => false
-    t.datetime "closed_on"
-    t.integer  "project_issues_index"
-  end
-
-  add_index "issues", ["assigned_to_id"], :name => "index_issues_on_assigned_to_id"
-  add_index "issues", ["author_id"], :name => "index_issues_on_author_id"
-  add_index "issues", ["category_id"], :name => "index_issues_on_category_id"
-  add_index "issues", ["created_on"], :name => "index_issues_on_created_on"
-  add_index "issues", ["fixed_version_id"], :name => "index_issues_on_fixed_version_id"
-  add_index "issues", ["priority_id"], :name => "index_issues_on_priority_id"
-  add_index "issues", ["project_id"], :name => "issues_project_id"
-  add_index "issues", ["root_id", "lft", "rgt"], :name => "index_issues_on_root_id_and_lft_and_rgt"
-  add_index "issues", ["status_id"], :name => "index_issues_on_status_id"
-  add_index "issues", ["tracker_id"], :name => "index_issues_on_tracker_id"
-
-  create_table "join_in_competitions", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "competition_id"
-    t.datetime "created_at",     :null => false
-    t.datetime "updated_at",     :null => false
-  end
-
-  create_table "join_in_contests", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "bid_id"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
-  create_table "journal_details", :force => true do |t|
-    t.integer "journal_id",               :default => 0,  :null => false
-    t.string  "property",   :limit => 30, :default => "", :null => false
-    t.string  "prop_key",   :limit => 30, :default => "", :null => false
-    t.text    "old_value"
-    t.text    "value"
-  end
-
-  add_index "journal_details", ["journal_id"], :name => "journal_details_journal_id"
-
-  create_table "journal_replies", :id => false, :force => true do |t|
-    t.integer "journal_id"
-    t.integer "user_id"
-    t.integer "reply_id"
-  end
-
-  add_index "journal_replies", ["journal_id"], :name => "index_journal_replies_on_journal_id"
-  add_index "journal_replies", ["reply_id"], :name => "index_journal_replies_on_reply_id"
-  add_index "journal_replies", ["user_id"], :name => "index_journal_replies_on_user_id"
-
-  create_table "journals", :force => true do |t|
-    t.integer  "journalized_id",                 :default => 0,     :null => false
-    t.string   "journalized_type", :limit => 30, :default => "",    :null => false
-    t.integer  "user_id",                        :default => 0,     :null => false
-    t.text     "notes"
-    t.datetime "created_on",                                        :null => false
-    t.boolean  "private_notes",                  :default => false, :null => false
-  end
-
-  add_index "journals", ["created_on"], :name => "index_journals_on_created_on"
-  add_index "journals", ["journalized_id", "journalized_type"], :name => "journals_journalized_id"
-  add_index "journals", ["journalized_id"], :name => "index_journals_on_journalized_id"
-  add_index "journals", ["user_id"], :name => "index_journals_on_user_id"
-
-  create_table "journals_for_messages", :force => true do |t|
-    t.integer  "jour_id"
-    t.string   "jour_type"
-    t.integer  "user_id"
-    t.text     "notes"
-    t.integer  "status"
-    t.integer  "reply_id"
-    t.datetime "created_on",                  :null => false
-    t.datetime "updated_on",                  :null => false
-    t.string   "m_parent_id"
-    t.boolean  "is_readed"
-    t.integer  "m_reply_count"
-    t.integer  "m_reply_id"
-    t.integer  "is_comprehensive_evaluation"
-  end
-
-  create_table "kindeditor_assets", :force => true do |t|
-    t.string   "asset"
-    t.integer  "file_size"
-    t.string   "file_type"
-    t.integer  "owner_id"
-    t.string   "asset_type"
-    t.datetime "created_at",                :null => false
-    t.datetime "updated_at",                :null => false
-    t.integer  "owner_type", :default => 0
-  end
-
-  create_table "member_roles", :force => true do |t|
-    t.integer "member_id",      :null => false
-    t.integer "role_id",        :null => false
-    t.integer "inherited_from"
-  end
-
-  add_index "member_roles", ["member_id"], :name => "index_member_roles_on_member_id"
-  add_index "member_roles", ["role_id"], :name => "index_member_roles_on_role_id"
-
-  create_table "members", :force => true do |t|
-    t.integer  "user_id",           :default => 0,     :null => false
-    t.integer  "project_id",        :default => 0
-    t.datetime "created_on"
-    t.boolean  "mail_notification", :default => false, :null => false
-    t.integer  "course_id",         :default => -1
-    t.integer  "course_group_id",   :default => 0
-  end
-
-  add_index "members", ["project_id"], :name => "index_members_on_project_id"
-  add_index "members", ["user_id", "project_id", "course_id"], :name => "index_members_on_user_id_and_project_id", :unique => true
-  add_index "members", ["user_id"], :name => "index_members_on_user_id"
-
-  create_table "memo_messages", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "forum_id"
-    t.integer  "memo_id"
-    t.string   "memo_type"
-    t.integer  "viewed"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
-  create_table "memos", :force => true do |t|
-    t.integer  "forum_id",                         :null => false
-    t.integer  "parent_id"
-    t.string   "subject",                          :null => false
-    t.text     "content",                          :null => false
-    t.integer  "author_id",                        :null => false
-    t.integer  "replies_count", :default => 0
-    t.integer  "last_reply_id"
-    t.boolean  "lock",          :default => false
-    t.boolean  "sticky",        :default => false
-    t.datetime "created_at",                       :null => false
-    t.datetime "updated_at",                       :null => false
-    t.integer  "viewed_count",  :default => 0
-  end
-
-  create_table "message_alls", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "message_id"
-    t.string   "message_type"
-    t.datetime "created_at",   :null => false
-    t.datetime "updated_at",   :null => false
-  end
-
-  create_table "messages", :force => true do |t|
-    t.integer  "board_id",                         :null => false
-    t.integer  "parent_id"
-    t.string   "subject",       :default => "",    :null => false
-    t.text     "content"
-    t.integer  "author_id"
-    t.integer  "replies_count", :default => 0,     :null => false
-    t.integer  "last_reply_id"
-    t.datetime "created_on",                       :null => false
-    t.datetime "updated_on",                       :null => false
-    t.boolean  "locked",        :default => false
-    t.integer  "sticky",        :default => 0
-    t.integer  "reply_id"
-  end
-
-  add_index "messages", ["author_id"], :name => "index_messages_on_author_id"
-  add_index "messages", ["board_id"], :name => "messages_board_id"
-  add_index "messages", ["created_on"], :name => "index_messages_on_created_on"
-  add_index "messages", ["last_reply_id"], :name => "index_messages_on_last_reply_id"
-  add_index "messages", ["parent_id"], :name => "messages_parent_id"
-
-  create_table "news", :force => true do |t|
-    t.integer  "project_id"
-    t.string   "title",          :limit => 60, :default => "", :null => false
-    t.string   "summary",                      :default => ""
-    t.text     "description"
-    t.integer  "author_id",                    :default => 0,  :null => false
-    t.datetime "created_on"
-    t.integer  "comments_count",               :default => 0,  :null => false
-    t.integer  "course_id"
-    t.integer  "sticky",                       :default => 0
-  end
-
-  add_index "news", ["author_id"], :name => "index_news_on_author_id"
-  add_index "news", ["created_on"], :name => "index_news_on_created_on"
-  add_index "news", ["project_id"], :name => "news_project_id"
-
-  create_table "no_uses", :force => true do |t|
-    t.integer  "user_id",     :null => false
-    t.string   "no_use_type"
-    t.integer  "no_use_id"
-    t.datetime "created_at",  :null => false
-    t.datetime "updated_at",  :null => false
-  end
-
-  create_table "notificationcomments", :force => true do |t|
-    t.string   "notificationcommented_type"
-    t.integer  "notificationcommented_id"
-    t.integer  "author_id"
-    t.text     "notificationcomments"
-    t.datetime "created_at",                 :null => false
-    t.datetime "updated_at",                 :null => false
-  end
-
-  create_table "onclick_times", :force => true do |t|
-    t.integer  "user_id"
-    t.datetime "onclick_time"
-    t.datetime "created_at",   :null => false
-    t.datetime "updated_at",   :null => false
-  end
-
-  create_table "open_id_authentication_associations", :force => true do |t|
-    t.integer "issued"
-    t.integer "lifetime"
-    t.string  "handle"
-    t.string  "assoc_type"
-    t.binary  "server_url"
-    t.binary  "secret"
-  end
-
-  create_table "open_id_authentication_nonces", :force => true do |t|
-    t.integer "timestamp",  :null => false
-    t.string  "server_url"
-    t.string  "salt",       :null => false
-  end
-
-  create_table "open_source_projects", :force => true do |t|
-    t.string   "name"
-    t.text     "description"
-    t.integer  "commit_count",     :default => 0
-    t.integer  "code_line",        :default => 0
-    t.integer  "users_count",      :default => 0
-    t.date     "last_commit_time"
-    t.string   "url"
-    t.date     "date_collected"
-    t.datetime "created_at",                      :null => false
-    t.datetime "updated_at",                      :null => false
-  end
-
-  create_table "option_numbers", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "memo"
-    t.integer  "messages_for_issues"
-    t.integer  "issues_status"
-    t.integer  "replay_for_message"
-    t.integer  "replay_for_memo"
-    t.integer  "follow"
-    t.integer  "tread"
-    t.integer  "praise_by_one"
-    t.integer  "praise_by_two"
-    t.integer  "praise_by_three"
-    t.integer  "tread_by_one"
-    t.integer  "tread_by_two"
-    t.integer  "tread_by_three"
-    t.integer  "changeset"
-    t.integer  "document"
-    t.integer  "attachment"
-    t.integer  "issue_done_ratio"
-    t.integer  "post_issue"
-    t.integer  "score_type"
-    t.integer  "total_score"
-    t.datetime "created_at",          :null => false
-    t.datetime "updated_at",          :null => false
-    t.integer  "project_id"
-  end
-
-  create_table "org_activities", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "org_act_id"
-    t.string   "org_act_type"
-    t.integer  "container_id"
-    t.string   "container_type"
-    t.datetime "created_at",     :null => false
-    t.datetime "updated_at",     :null => false
-  end
-
-  create_table "org_courses", :force => true do |t|
-    t.integer  "organization_id"
-    t.integer  "course_id"
-    t.datetime "created_at"
-  end
-
-  create_table "org_document_comments", :force => true do |t|
-    t.text     "title"
-    t.text     "content"
-    t.integer  "organization_id"
-    t.integer  "creator_id"
-    t.integer  "parent_id"
-    t.integer  "reply_id"
-    t.datetime "created_at",                         :null => false
-    t.datetime "updated_at",                         :null => false
-    t.boolean  "locked",          :default => false
-    t.integer  "sticky",          :default => 0
-  end
-
-  create_table "org_member_roles", :force => true do |t|
-    t.integer "org_member_id"
-    t.integer "role_id"
-  end
-
-  create_table "org_members", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "organization_id"
-    t.datetime "created_at",      :null => false
-    t.datetime "updated_at",      :null => false
-  end
-
-  create_table "org_projects", :force => true do |t|
-    t.integer  "organization_id"
-    t.integer  "project_id"
-    t.datetime "created_at"
-  end
-
-  create_table "organizations", :force => true do |t|
-    t.string   "name"
-    t.text     "description"
-    t.integer  "creator_id"
-    t.integer  "home_id"
-    t.string   "domain"
-    t.boolean  "is_public"
-    t.datetime "created_at",  :null => false
-    t.datetime "updated_at",  :null => false
-  end
-
-  create_table "phone_app_versions", :force => true do |t|
-    t.string   "version"
-    t.text     "description"
-    t.datetime "created_at",  :null => false
-    t.datetime "updated_at",  :null => false
-  end
-
-  create_table "poll_answers", :force => true do |t|
-    t.integer  "poll_question_id"
-    t.text     "answer_text"
-    t.integer  "answer_position"
-    t.datetime "created_at",       :null => false
-    t.datetime "updated_at",       :null => false
-  end
-
-  create_table "poll_questions", :force => true do |t|
-    t.string   "question_title"
-    t.integer  "question_type"
-    t.integer  "is_necessary"
-    t.integer  "poll_id"
-    t.datetime "created_at",      :null => false
-    t.datetime "updated_at",      :null => false
-    t.integer  "question_number"
-  end
-
-  create_table "poll_users", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "poll_id"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
-  create_table "poll_votes", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "poll_question_id"
-    t.integer  "poll_answer_id"
-    t.text     "vote_text"
-    t.datetime "created_at",       :null => false
-    t.datetime "updated_at",       :null => false
-  end
-
-  create_table "polls", :force => true do |t|
-    t.string   "polls_name"
-    t.string   "polls_type"
-    t.integer  "polls_group_id"
-    t.integer  "polls_status"
-    t.integer  "user_id"
-    t.datetime "published_at"
-    t.datetime "closed_at"
-    t.datetime "created_at",                       :null => false
-    t.datetime "updated_at",                       :null => false
-    t.text     "polls_description"
-    t.integer  "show_result",       :default => 1
-  end
-
-  create_table "praise_tread_caches", :force => true do |t|
-    t.integer  "object_id",   :null => false
-    t.string   "object_type"
-    t.integer  "praise_num"
-    t.integer  "tread_num"
-    t.datetime "created_at",  :null => false
-    t.datetime "updated_at",  :null => false
-  end
-
-  create_table "praise_treads", :force => true do |t|
-    t.integer  "user_id",                  :null => false
-    t.integer  "praise_tread_object_id"
-    t.string   "praise_tread_object_type"
-    t.integer  "praise_or_tread"
-    t.datetime "created_at",               :null => false
-    t.datetime "updated_at",               :null => false
-  end
-
-  create_table "principal_activities", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "principal_id"
-    t.integer  "principal_act_id"
-    t.string   "principal_act_type"
-    t.datetime "created_at",         :null => false
-    t.datetime "updated_at",         :null => false
-  end
-
-  create_table "project_infos", :force => true do |t|
-    t.integer  "project_id"
-    t.integer  "user_id"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
-  create_table "project_scores", :force => true do |t|
-    t.string   "project_id"
-    t.integer  "score"
-    t.datetime "created_at",                       :null => false
-    t.datetime "updated_at",                       :null => false
-    t.integer  "issue_num",         :default => 0
-    t.integer  "issue_journal_num", :default => 0
-    t.integer  "news_num",          :default => 0
-    t.integer  "documents_num",     :default => 0
-    t.integer  "changeset_num",     :default => 0
-    t.integer  "board_message_num", :default => 0
-  end
-
-  create_table "project_statuses", :force => true do |t|
-    t.integer "changesets_count"
-    t.integer "watchers_count"
-    t.integer "project_id"
-    t.integer "project_type"
-    t.float   "grade",            :default => 0.0
-    t.integer "course_ac_para",   :default => 0
-  end
-
-  add_index "project_statuses", ["grade"], :name => "index_project_statuses_on_grade"
-
-  create_table "projecting_softapplictions", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "softapplication_id"
-    t.integer  "project_id"
-    t.datetime "created_at",         :null => false
-    t.datetime "updated_at",         :null => false
-  end
-
-  create_table "projects", :force => true do |t|
-    t.string   "name",             :default => "",    :null => false
-    t.text     "description"
-    t.string   "homepage",         :default => ""
-    t.boolean  "is_public",        :default => true,  :null => false
-    t.integer  "parent_id"
-    t.datetime "created_on"
-    t.datetime "updated_on"
-    t.string   "identifier"
-    t.integer  "status",           :default => 1,     :null => false
-    t.integer  "lft"
-    t.integer  "rgt"
-    t.boolean  "inherit_members",  :default => false, :null => false
-    t.integer  "project_type"
-    t.boolean  "hidden_repo",      :default => false, :null => false
-    t.integer  "attachmenttype",   :default => 1
-    t.integer  "user_id"
-    t.integer  "dts_test",         :default => 0
-    t.string   "enterprise_name"
-    t.integer  "organization_id"
-    t.integer  "project_new_type"
-    t.integer  "gpid"
-  end
-
-  add_index "projects", ["lft"], :name => "index_projects_on_lft"
-  add_index "projects", ["rgt"], :name => "index_projects_on_rgt"
-
-  create_table "projects_trackers", :id => false, :force => true do |t|
-    t.integer "project_id", :default => 0, :null => false
-    t.integer "tracker_id", :default => 0, :null => false
-  end
-
-  add_index "projects_trackers", ["project_id", "tracker_id"], :name => "projects_trackers_unique", :unique => true
-  add_index "projects_trackers", ["project_id"], :name => "projects_trackers_project_id"
-
-  create_table "queries", :force => true do |t|
-    t.integer "project_id"
-    t.string  "name",          :default => "",    :null => false
-    t.text    "filters"
-    t.integer "user_id",       :default => 0,     :null => false
-    t.boolean "is_public",     :default => false, :null => false
-    t.text    "column_names"
-    t.text    "sort_criteria"
-    t.string  "group_by"
-    t.string  "type"
-  end
-
-  add_index "queries", ["project_id"], :name => "index_queries_on_project_id"
-  add_index "queries", ["user_id"], :name => "index_queries_on_user_id"
-
-  create_table "relative_memo_to_open_source_projects", :force => true do |t|
-    t.integer  "osp_id"
-    t.integer  "relative_memo_id"
-    t.datetime "created_at",       :null => false
-    t.datetime "updated_at",       :null => false
-  end
-
-  create_table "relative_memos", :force => true do |t|
-    t.integer  "osp_id"
-    t.integer  "parent_id"
-    t.string   "subject",                                                   :null => false
-    t.text     "content",            :limit => 16777215,                    :null => false
-    t.integer  "author_id"
-    t.integer  "replies_count",                          :default => 0
-    t.integer  "last_reply_id"
-    t.boolean  "lock",                                   :default => false
-    t.boolean  "sticky",                                 :default => false
-    t.boolean  "is_quote",                               :default => false
-    t.datetime "created_at",                                                :null => false
-    t.datetime "updated_at",                                                :null => false
-    t.integer  "viewed_count_crawl",                     :default => 0
-    t.integer  "viewed_count_local",                     :default => 0
-    t.string   "url"
-    t.string   "username"
-    t.string   "userhomeurl"
-    t.date     "date_collected"
-    t.string   "topic_resource"
-  end
-
-  create_table "repositories", :force => true do |t|
-    t.integer "project_id",                  :default => 0,     :null => false
-    t.string  "url",                         :default => "",    :null => false
-    t.string  "login",         :limit => 60, :default => ""
-    t.string  "password",                    :default => ""
-    t.string  "root_url",                    :default => ""
-    t.string  "type"
-    t.string  "path_encoding", :limit => 64
-    t.string  "log_encoding",  :limit => 64
-    t.text    "extra_info"
-    t.string  "identifier"
-    t.boolean "is_default",                  :default => false
-    t.boolean "hidden",                      :default => false
-  end
-
-  add_index "repositories", ["project_id"], :name => "index_repositories_on_project_id"
-
-  create_table "rich_rich_files", :force => true do |t|
-    t.datetime "created_at",                                 :null => false
-    t.datetime "updated_at",                                 :null => false
-    t.string   "rich_file_file_name"
-    t.string   "rich_file_content_type"
-    t.integer  "rich_file_file_size"
-    t.datetime "rich_file_updated_at"
-    t.string   "owner_type"
-    t.integer  "owner_id"
-    t.text     "uri_cache"
-    t.string   "simplified_type",        :default => "file"
-  end
-
-  create_table "roles", :force => true do |t|
-    t.string  "name",              :limit => 30, :default => "",        :null => false
-    t.integer "position",                        :default => 1
-    t.boolean "assignable",                      :default => true
-    t.integer "builtin",                         :default => 0,         :null => false
-    t.text    "permissions"
-    t.string  "issues_visibility", :limit => 30, :default => "default", :null => false
-  end
-
-  create_table "schools", :force => true do |t|
-    t.string   "name"
-    t.string   "province"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-    t.string   "logo_link"
-    t.string   "pinyin"
-  end
-
-  create_table "seems_rateable_cached_ratings", :force => true do |t|
-    t.integer  "cacheable_id",   :limit => 8
-    t.string   "cacheable_type"
-    t.float    "avg",                         :null => false
-    t.integer  "cnt",                         :null => false
-    t.string   "dimension"
-    t.datetime "created_at",                  :null => false
-    t.datetime "updated_at",                  :null => false
-  end
-
-  create_table "seems_rateable_rates", :force => true do |t|
-    t.integer  "rater_id",         :limit => 8
-    t.integer  "rateable_id"
-    t.string   "rateable_type"
-    t.float    "stars",                                        :null => false
-    t.string   "dimension"
-    t.datetime "created_at",                                   :null => false
-    t.datetime "updated_at",                                   :null => false
-    t.integer  "is_teacher_score",              :default => 0
-  end
-
-  create_table "settings", :force => true do |t|
-    t.string   "name",       :default => "", :null => false
-    t.text     "value"
-    t.datetime "updated_on"
-  end
-
-  add_index "settings", ["name"], :name => "index_settings_on_name"
-
-  create_table "shares", :force => true do |t|
-    t.date     "created_on"
-    t.string   "url"
-    t.string   "title"
-    t.integer  "share_type"
-    t.datetime "created_at",  :null => false
-    t.datetime "updated_at",  :null => false
-    t.integer  "project_id"
-    t.integer  "user_id"
-    t.string   "description"
-  end
-
-  create_table "softapplications", :force => true do |t|
-    t.string   "name"
-    t.text     "description"
-    t.integer  "app_type_id"
-    t.string   "app_type_name"
-    t.string   "android_min_version_available"
-    t.integer  "user_id"
-    t.datetime "created_at",                    :null => false
-    t.datetime "updated_at",                    :null => false
-    t.integer  "contest_id"
-    t.integer  "softapplication_id"
-    t.integer  "is_public"
-    t.string   "application_developers"
-    t.string   "deposit_project_url"
-    t.string   "deposit_project"
-    t.integer  "project_id"
-  end
-
-  create_table "student_work_tests", :force => true do |t|
-    t.integer  "student_work_id"
-    t.datetime "created_at",                     :null => false
-    t.datetime "updated_at",                     :null => false
-    t.integer  "status",          :default => 9
-    t.text     "results"
-    t.text     "src"
-  end
-
-  create_table "student_works", :force => true do |t|
-    t.string   "name"
-    t.text     "description",             :limit => 2147483647
-    t.integer  "homework_common_id"
-    t.integer  "user_id"
-    t.float    "final_score"
-    t.float    "teacher_score"
-    t.float    "student_score"
-    t.float    "teaching_asistant_score"
-    t.integer  "project_id",                                    :default => 0
-    t.datetime "created_at",                                                       :null => false
-    t.datetime "updated_at",                                                       :null => false
-    t.integer  "late_penalty",                                  :default => 0
-    t.integer  "absence_penalty",                               :default => 0
-    t.float    "system_score",                                  :default => 0.0
-    t.boolean  "is_test",                                       :default => false
-  end
-
-  create_table "student_works_evaluation_distributions", :force => true do |t|
-    t.integer  "student_work_id"
-    t.integer  "user_id"
-    t.datetime "created_at",      :null => false
-    t.datetime "updated_at",      :null => false
-  end
-
-  create_table "student_works_scores", :force => true do |t|
-    t.integer  "student_work_id"
-    t.integer  "user_id"
-    t.integer  "score"
-    t.text     "comment"
-    t.integer  "reviewer_role"
-    t.datetime "created_at",      :null => false
-    t.datetime "updated_at",      :null => false
-  end
-
-  create_table "students_for_courses", :force => true do |t|
-    t.integer  "student_id"
-    t.integer  "course_id"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
-  add_index "students_for_courses", ["course_id"], :name => "index_students_for_courses_on_course_id"
-  add_index "students_for_courses", ["student_id"], :name => "index_students_for_courses_on_student_id"
-
-  create_table "system_messages", :force => true do |t|
-    t.integer  "user_id"
-    t.string   "content"
-    t.datetime "created_at",  :null => false
-    t.datetime "updated_at",  :null => false
-    t.text     "description"
-    t.string   "subject"
-  end
-
-  create_table "taggings", :force => true do |t|
-    t.integer  "tag_id"
-    t.integer  "taggable_id"
-    t.string   "taggable_type"
-    t.integer  "tagger_id"
-    t.string   "tagger_type"
-    t.string   "context",       :limit => 128
-    t.datetime "created_at"
-  end
-
-  add_index "taggings", ["tag_id"], :name => "index_taggings_on_tag_id"
-  add_index "taggings", ["taggable_id", "taggable_type", "context"], :name => "index_taggings_on_taggable_id_and_taggable_type_and_context"
-  add_index "taggings", ["taggable_type"], :name => "index_taggings_on_taggable_type"
-
-  create_table "tags", :force => true do |t|
-    t.string "name"
-  end
-
-  create_table "teachers", :force => true do |t|
-    t.string   "tea_name"
-    t.string   "location"
-    t.integer  "couurse_time"
-    t.integer  "course_code"
-    t.datetime "created_at",   :null => false
-    t.datetime "updated_at",   :null => false
-    t.string   "extra"
-  end
-
-  create_table "time_entries", :force => true do |t|
-    t.integer  "project_id",  :null => false
-    t.integer  "user_id",     :null => false
-    t.integer  "issue_id"
-    t.float    "hours",       :null => false
-    t.string   "comments"
-    t.integer  "activity_id", :null => false
-    t.date     "spent_on",    :null => false
-    t.integer  "tyear",       :null => false
-    t.integer  "tmonth",      :null => false
-    t.integer  "tweek",       :null => false
-    t.datetime "created_on",  :null => false
-    t.datetime "updated_on",  :null => false
-  end
-
-  add_index "time_entries", ["activity_id"], :name => "index_time_entries_on_activity_id"
-  add_index "time_entries", ["created_on"], :name => "index_time_entries_on_created_on"
-  add_index "time_entries", ["issue_id"], :name => "time_entries_issue_id"
-  add_index "time_entries", ["project_id"], :name => "time_entries_project_id"
-  add_index "time_entries", ["user_id"], :name => "index_time_entries_on_user_id"
-
-  create_table "tokens", :force => true do |t|
-    t.integer  "user_id",                  :default => 0,  :null => false
-    t.string   "action",     :limit => 30, :default => "", :null => false
-    t.string   "value",      :limit => 40, :default => "", :null => false
-    t.datetime "created_on",                               :null => false
-  end
-
-  add_index "tokens", ["user_id"], :name => "index_tokens_on_user_id"
-  add_index "tokens", ["value"], :name => "tokens_value", :unique => true
-
-  create_table "trackers", :force => true do |t|
-    t.string  "name",          :limit => 30, :default => "",    :null => false
-    t.boolean "is_in_chlog",                 :default => false, :null => false
-    t.integer "position",                    :default => 1
-    t.boolean "is_in_roadmap",               :default => true,  :null => false
-    t.integer "fields_bits",                 :default => 0
-  end
-
-  create_table "user_activities", :force => true do |t|
-    t.string   "act_type"
-    t.integer  "act_id"
-    t.string   "container_type"
-    t.integer  "container_id"
-    t.datetime "created_at",     :null => false
-    t.datetime "updated_at",     :null => false
-    t.integer  "user_id"
-  end
-
-  create_table "user_extensions", :force => true do |t|
-    t.integer  "user_id",                            :null => false
-    t.date     "birthday"
-    t.string   "brief_introduction"
-    t.integer  "gender"
-    t.string   "location"
-    t.string   "occupation"
-    t.integer  "work_experience"
-    t.integer  "zip_code"
-    t.datetime "created_at",                         :null => false
-    t.datetime "updated_at",                         :null => false
-    t.string   "technical_title"
-    t.integer  "identity"
-    t.string   "student_id"
-    t.string   "teacher_realname"
-    t.string   "student_realname"
-    t.string   "location_city"
-    t.integer  "school_id"
-    t.string   "description",        :default => ""
-  end
-
-  create_table "user_feedback_messages", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "journals_for_message_id"
-    t.string   "journals_for_message_type"
-    t.integer  "viewed"
-    t.datetime "created_at",                :null => false
-    t.datetime "updated_at",                :null => false
-  end
-
-  create_table "user_grades", :force => true do |t|
-    t.integer  "user_id",                     :null => false
-    t.integer  "project_id",                  :null => false
-    t.float    "grade",      :default => 0.0
-    t.datetime "created_at",                  :null => false
-    t.datetime "updated_at",                  :null => false
-  end
-
-  add_index "user_grades", ["grade"], :name => "index_user_grades_on_grade"
-  add_index "user_grades", ["project_id"], :name => "index_user_grades_on_project_id"
-  add_index "user_grades", ["user_id"], :name => "index_user_grades_on_user_id"
-
-  create_table "user_levels", :force => true do |t|
-    t.integer "user_id"
-    t.integer "level"
-  end
-
-  create_table "user_preferences", :force => true do |t|
-    t.integer "user_id",   :default => 0,     :null => false
-    t.text    "others"
-    t.boolean "hide_mail", :default => false
-    t.string  "time_zone"
-  end
-
-  add_index "user_preferences", ["user_id"], :name => "index_user_preferences_on_user_id"
-
-  create_table "user_score_details", :force => true do |t|
-    t.integer  "current_user_id"
-    t.integer  "target_user_id"
-    t.string   "score_type"
-    t.string   "score_action"
-    t.integer  "user_id"
-    t.integer  "old_score"
-    t.integer  "new_score"
-    t.integer  "current_user_level"
-    t.integer  "target_user_level"
-    t.integer  "score_changeable_obj_id"
-    t.string   "score_changeable_obj_type"
-    t.datetime "created_at",                :null => false
-    t.datetime "updated_at",                :null => false
-  end
-
-  create_table "user_scores", :force => true do |t|
-    t.integer  "user_id",       :null => false
-    t.integer  "collaboration"
-    t.integer  "influence"
-    t.integer  "skill"
-    t.integer  "active"
-    t.datetime "created_at",    :null => false
-    t.datetime "updated_at",    :null => false
-  end
-
-  create_table "user_statuses", :force => true do |t|
-    t.integer  "changesets_count"
-    t.integer  "watchers_count"
-    t.integer  "user_id"
-    t.datetime "created_at",                        :null => false
-    t.datetime "updated_at",                        :null => false
-    t.float    "grade",            :default => 0.0
-  end
-
-  add_index "user_statuses", ["changesets_count"], :name => "index_user_statuses_on_changesets_count"
-  add_index "user_statuses", ["grade"], :name => "index_user_statuses_on_grade"
-  add_index "user_statuses", ["watchers_count"], :name => "index_user_statuses_on_watchers_count"
-
-  create_table "users", :force => true do |t|
-    t.string   "login",                           :default => "",    :null => false
-    t.string   "hashed_password",   :limit => 40, :default => "",    :null => false
-    t.string   "firstname",         :limit => 30, :default => "",    :null => false
-    t.string   "lastname",                        :default => "",    :null => false
-    t.string   "mail",              :limit => 60, :default => "",    :null => false
-    t.boolean  "admin",                           :default => false, :null => false
-    t.integer  "status",                          :default => 1,     :null => false
-    t.datetime "last_login_on"
-    t.string   "language",          :limit => 5,  :default => ""
-    t.integer  "auth_source_id"
-    t.datetime "created_on"
-    t.datetime "updated_on"
-    t.string   "type"
-    t.string   "identity_url"
-    t.string   "mail_notification",               :default => "",    :null => false
-    t.string   "salt",              :limit => 64
-    t.integer  "gid"
-  end
-
-  add_index "users", ["auth_source_id"], :name => "index_users_on_auth_source_id"
-  add_index "users", ["id", "type"], :name => "index_users_on_id_and_type"
-  add_index "users", ["type"], :name => "index_users_on_type"
-
-  create_table "versions", :force => true do |t|
-    t.integer  "project_id",      :default => 0,      :null => false
-    t.string   "name",            :default => "",     :null => false
-    t.string   "description",     :default => ""
-    t.date     "effective_date"
-    t.datetime "created_on"
-    t.datetime "updated_on"
-    t.string   "wiki_page_title"
-    t.string   "status",          :default => "open"
-    t.string   "sharing",         :default => "none", :null => false
-  end
-
-  add_index "versions", ["project_id"], :name => "versions_project_id"
-  add_index "versions", ["sharing"], :name => "index_versions_on_sharing"
-
-  create_table "visitors", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "master_id"
-    t.datetime "updated_on"
-    t.datetime "created_on"
-  end
-
-  add_index "visitors", ["master_id"], :name => "index_visitors_master_id"
-  add_index "visitors", ["updated_on"], :name => "index_visitors_updated_on"
-  add_index "visitors", ["user_id"], :name => "index_visitors_user_id"
-
-  create_table "watchers", :force => true do |t|
-    t.string  "watchable_type", :default => "", :null => false
-    t.integer "watchable_id",   :default => 0,  :null => false
-    t.integer "user_id"
-  end
-
-  add_index "watchers", ["user_id", "watchable_type"], :name => "watchers_user_id_type"
-  add_index "watchers", ["user_id"], :name => "index_watchers_on_user_id"
-  add_index "watchers", ["watchable_id", "watchable_type"], :name => "index_watchers_on_watchable_id_and_watchable_type"
-
-  create_table "web_footer_companies", :force => true do |t|
-    t.string   "name"
-    t.string   "logo_size"
-    t.string   "url"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
-  create_table "web_footer_oranizers", :force => true do |t|
-    t.string   "name"
-    t.text     "description"
-    t.datetime "created_at",  :null => false
-    t.datetime "updated_at",  :null => false
-  end
-
-  create_table "wiki_content_versions", :force => true do |t|
-    t.integer  "wiki_content_id",                                       :null => false
-    t.integer  "page_id",                                               :null => false
-    t.integer  "author_id"
-    t.binary   "data",            :limit => 2147483647
-    t.string   "compression",     :limit => 6,          :default => ""
-    t.string   "comments",                              :default => ""
-    t.datetime "updated_on",                                            :null => false
-    t.integer  "version",                                               :null => false
-  end
-
-  add_index "wiki_content_versions", ["updated_on"], :name => "index_wiki_content_versions_on_updated_on"
-  add_index "wiki_content_versions", ["wiki_content_id"], :name => "wiki_content_versions_wcid"
-
-  create_table "wiki_contents", :force => true do |t|
-    t.integer  "page_id",                                          :null => false
-    t.integer  "author_id"
-    t.text     "text",       :limit => 2147483647
-    t.string   "comments",                         :default => ""
-    t.datetime "updated_on",                                       :null => false
-    t.integer  "version",                                          :null => false
-  end
-
-  add_index "wiki_contents", ["author_id"], :name => "index_wiki_contents_on_author_id"
-  add_index "wiki_contents", ["page_id"], :name => "wiki_contents_page_id"
-
-  create_table "wiki_pages", :force => true do |t|
-    t.integer  "wiki_id",                       :null => false
-    t.string   "title",                         :null => false
-    t.datetime "created_on",                    :null => false
-    t.boolean  "protected",  :default => false, :null => false
-    t.integer  "parent_id"
-  end
-
-  add_index "wiki_pages", ["parent_id"], :name => "index_wiki_pages_on_parent_id"
-  add_index "wiki_pages", ["wiki_id", "title"], :name => "wiki_pages_wiki_id_title"
-  add_index "wiki_pages", ["wiki_id"], :name => "index_wiki_pages_on_wiki_id"
-
-  create_table "wiki_redirects", :force => true do |t|
-    t.integer  "wiki_id",      :null => false
-    t.string   "title"
-    t.string   "redirects_to"
-    t.datetime "created_on",   :null => false
-  end
-
-  add_index "wiki_redirects", ["wiki_id", "title"], :name => "wiki_redirects_wiki_id_title"
-  add_index "wiki_redirects", ["wiki_id"], :name => "index_wiki_redirects_on_wiki_id"
-
-  create_table "wikis", :force => true do |t|
-    t.integer "project_id",                :null => false
-    t.string  "start_page",                :null => false
-    t.integer "status",     :default => 1, :null => false
-  end
-
-  add_index "wikis", ["project_id"], :name => "wikis_project_id"
-
-  create_table "workflows", :force => true do |t|
-    t.integer "tracker_id",                  :default => 0,     :null => false
-    t.integer "old_status_id",               :default => 0,     :null => false
-    t.integer "new_status_id",               :default => 0,     :null => false
-    t.integer "role_id",                     :default => 0,     :null => false
-    t.boolean "assignee",                    :default => false, :null => false
-    t.boolean "author",                      :default => false, :null => false
-    t.string  "type",          :limit => 30
-    t.string  "field_name",    :limit => 30
-    t.string  "rule",          :limit => 30
-  end
-
-  add_index "workflows", ["new_status_id"], :name => "index_workflows_on_new_status_id"
-  add_index "workflows", ["old_status_id"], :name => "index_workflows_on_old_status_id"
-  add_index "workflows", ["role_id", "tracker_id", "old_status_id"], :name => "wkfs_role_tracker_old_status"
-  add_index "workflows", ["role_id"], :name => "index_workflows_on_role_id"
-
-  create_table "works_categories", :force => true do |t|
-    t.string   "category"
-    t.datetime "created_at", :null => false
-    t.datetime "updated_at", :null => false
-  end
-
-  create_table "zip_packs", :force => true do |t|
-    t.integer  "user_id"
-    t.integer  "homework_id"
-    t.string   "file_digest"
-    t.string   "file_path"
-    t.integer  "pack_times",   :default => 1
-    t.integer  "pack_size",    :default => 0
-    t.text     "file_digests"
-    t.datetime "created_at",                  :null => false
-    t.datetime "updated_at",                  :null => false
-  end
-
-end
+# encoding: UTF-8
+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# Note that this schema.rb definition is the authoritative source for your
+# database schema. If you need to create the application database on another
+# system, you should be using db:schema:load, not running all the migrations
+# from scratch. The latter is a flawed and unsustainable approach (the more migrations
+# you'll amass, the slower it'll run and the greater likelihood for issues).
+#
+# It's strongly recommended to check this file into your version control system.
+
+ActiveRecord::Schema.define(:version => 20151127011351) do
+
+  create_table "activities", :force => true do |t|
+    t.integer  "act_id",                                  :null => false
+    t.string   "act_type",                                :null => false
+    t.integer  "user_id",                                 :null => false
+    t.integer  "activity_container_id"
+    t.string   "activity_container_type", :default => ""
+    t.datetime "created_at"
+  end
+
+  add_index "activities", ["act_id", "act_type"], :name => "index_activities_on_act_id_and_act_type"
+  add_index "activities", ["user_id", "act_type"], :name => "index_activities_on_user_id_and_act_type"
+  add_index "activities", ["user_id"], :name => "index_activities_on_user_id"
+
+  create_table "activity_notifies", :force => true do |t|
+    t.integer  "activity_container_id"
+    t.string   "activity_container_type"
+    t.integer  "activity_id"
+    t.string   "activity_type"
+    t.integer  "notify_to"
+    t.datetime "created_on"
+    t.integer  "is_read"
+  end
+
+  add_index "activity_notifies", ["activity_container_id", "activity_container_type"], :name => "index_an_activity_container_id"
+  add_index "activity_notifies", ["created_on"], :name => "index_an_created_on"
+  add_index "activity_notifies", ["notify_to"], :name => "index_an_notify_to"
+
+  create_table "api_keys", :force => true do |t|
+    t.string   "access_token"
+    t.datetime "expires_at"
+    t.integer  "user_id"
+    t.boolean  "active",       :default => true
+    t.datetime "created_at",                     :null => false
+    t.datetime "updated_at",                     :null => false
+  end
+
+  add_index "api_keys", ["access_token"], :name => "index_api_keys_on_access_token"
+  add_index "api_keys", ["user_id"], :name => "index_api_keys_on_user_id"
+
+  create_table "applied_projects", :force => true do |t|
+    t.integer "project_id", :null => false
+    t.integer "user_id",    :null => false
+  end
+
+  create_table "apply_project_masters", :force => true do |t|
+    t.integer  "user_id"
+    t.string   "apply_type"
+    t.integer  "apply_id"
+    t.integer  "status"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
+  create_table "attachments", :force => true do |t|
+    t.integer  "container_id"
+    t.string   "container_type", :limit => 30
+    t.string   "filename",                     :default => "", :null => false
+    t.string   "disk_filename",                :default => "", :null => false
+    t.integer  "filesize",                     :default => 0,  :null => false
+    t.string   "content_type",                 :default => ""
+    t.string   "digest",         :limit => 40, :default => "", :null => false
+    t.integer  "downloads",                    :default => 0,  :null => false
+    t.integer  "author_id",                    :default => 0,  :null => false
+    t.datetime "created_on"
+    t.string   "description"
+    t.string   "disk_directory"
+    t.integer  "attachtype",                   :default => 1
+    t.integer  "is_public",                    :default => 1
+    t.integer  "copy_from"
+    t.integer  "quotes"
+  end
+
+  add_index "attachments", ["author_id"], :name => "index_attachments_on_author_id"
+  add_index "attachments", ["container_id", "container_type"], :name => "index_attachments_on_container_id_and_container_type"
+  add_index "attachments", ["created_on"], :name => "index_attachments_on_created_on"
+
+  create_table "attachmentstypes", :force => true do |t|
+    t.integer "typeId",                 :null => false
+    t.string  "typeName", :limit => 50
+  end
+
+  create_table "auth_sources", :force => true do |t|
+    t.string  "type",              :limit => 30, :default => "",    :null => false
+    t.string  "name",              :limit => 60, :default => "",    :null => false
+    t.string  "host",              :limit => 60
+    t.integer "port"
+    t.string  "account"
+    t.string  "account_password",                :default => ""
+    t.string  "base_dn"
+    t.string  "attr_login",        :limit => 30
+    t.string  "attr_firstname",    :limit => 30
+    t.string  "attr_lastname",     :limit => 30
+    t.string  "attr_mail",         :limit => 30
+    t.boolean "onthefly_register",               :default => false, :null => false
+    t.boolean "tls",                             :default => false, :null => false
+    t.string  "filter"
+    t.integer "timeout"
+  end
+
+  add_index "auth_sources", ["id", "type"], :name => "index_auth_sources_on_id_and_type"
+
+  create_table "biding_projects", :force => true do |t|
+    t.integer  "project_id"
+    t.integer  "bid_id"
+    t.integer  "user_id"
+    t.string   "description"
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
+    t.string   "reward"
+  end
+
+  create_table "bids", :force => true do |t|
+    t.string   "name"
+    t.string   "budget",                                    :null => false
+    t.integer  "author_id"
+    t.date     "deadline"
+    t.text     "description"
+    t.datetime "created_on",                                :null => false
+    t.datetime "updated_on",                                :null => false
+    t.integer  "commit"
+    t.integer  "reward_type"
+    t.integer  "homework_type"
+    t.integer  "parent_id"
+    t.string   "password"
+    t.integer  "is_evaluation"
+    t.integer  "proportion",                :default => 60
+    t.integer  "comment_status",            :default => 0
+    t.integer  "evaluation_num",            :default => 3
+    t.integer  "open_anonymous_evaluation", :default => 1
+  end
+
+  create_table "blog_comments", :force => true do |t|
+    t.integer  "blog_id",                            :null => false
+    t.integer  "parent_id"
+    t.string   "title",           :default => "",    :null => false
+    t.text     "content"
+    t.integer  "author_id"
+    t.integer  "comments_count",  :default => 0,     :null => false
+    t.integer  "last_comment_id"
+    t.datetime "created_on",                         :null => false
+    t.datetime "updated_on",                         :null => false
+    t.boolean  "locked",          :default => false
+    t.integer  "sticky",          :default => 0
+    t.integer  "reply_id"
+    t.datetime "created_at",                         :null => false
+    t.datetime "updated_at",                         :null => false
+  end
+
+  create_table "blogs", :force => true do |t|
+    t.string   "name",             :default => "", :null => false
+    t.text     "description"
+    t.integer  "position",         :default => 1
+    t.integer  "article_count",    :default => 0,  :null => false
+    t.integer  "comments_count",   :default => 0,  :null => false
+    t.integer  "last_comments_id"
+    t.integer  "parent_id"
+    t.integer  "author_id"
+    t.datetime "created_at",                       :null => false
+    t.datetime "updated_at",                       :null => false
+  end
+
+  create_table "boards", :force => true do |t|
+    t.integer "project_id",                      :null => false
+    t.string  "name",            :default => "", :null => false
+    t.string  "description"
+    t.integer "position",        :default => 1
+    t.integer "topics_count",    :default => 0,  :null => false
+    t.integer "messages_count",  :default => 0,  :null => false
+    t.integer "last_message_id"
+    t.integer "parent_id"
+    t.integer "course_id"
+  end
+
+  add_index "boards", ["last_message_id"], :name => "index_boards_on_last_message_id"
+  add_index "boards", ["project_id"], :name => "boards_project_id"
+
+  create_table "bug_to_osps", :force => true do |t|
+    t.integer  "osp_id"
+    t.integer  "relative_memo_id"
+    t.string   "description"
+    t.datetime "created_at",       :null => false
+    t.datetime "updated_at",       :null => false
+  end
+
+  create_table "changes", :force => true do |t|
+    t.integer "changeset_id",                               :null => false
+    t.string  "action",        :limit => 1, :default => "", :null => false
+    t.text    "path",                                       :null => false
+    t.text    "from_path"
+    t.string  "from_revision"
+    t.string  "revision"
+    t.string  "branch"
+  end
+
+  add_index "changes", ["changeset_id"], :name => "changesets_changeset_id"
+
+  create_table "changeset_parents", :id => false, :force => true do |t|
+    t.integer "changeset_id", :null => false
+    t.integer "parent_id",    :null => false
+  end
+
+  add_index "changeset_parents", ["changeset_id"], :name => "changeset_parents_changeset_ids"
+  add_index "changeset_parents", ["parent_id"], :name => "changeset_parents_parent_ids"
+
+  create_table "changesets", :force => true do |t|
+    t.integer  "repository_id", :null => false
+    t.string   "revision",      :null => false
+    t.string   "committer"
+    t.datetime "committed_on",  :null => false
+    t.text     "comments"
+    t.date     "commit_date"
+    t.string   "scmid"
+    t.integer  "user_id"
+  end
+
+  add_index "changesets", ["committed_on"], :name => "index_changesets_on_committed_on"
+  add_index "changesets", ["repository_id", "revision"], :name => "changesets_repos_rev", :unique => true
+  add_index "changesets", ["repository_id", "scmid"], :name => "changesets_repos_scmid"
+  add_index "changesets", ["repository_id"], :name => "index_changesets_on_repository_id"
+  add_index "changesets", ["user_id"], :name => "index_changesets_on_user_id"
+
+  create_table "changesets_issues", :id => false, :force => true do |t|
+    t.integer "changeset_id", :null => false
+    t.integer "issue_id",     :null => false
+  end
+
+  add_index "changesets_issues", ["changeset_id", "issue_id"], :name => "changesets_issues_ids", :unique => true
+
+  create_table "code_review_assignments", :force => true do |t|
+    t.integer "issue_id"
+    t.integer "change_id"
+    t.integer "attachment_id"
+    t.string  "file_path"
+    t.string  "rev"
+    t.string  "rev_to"
+    t.string  "action_type"
+    t.integer "changeset_id"
+  end
+
+  create_table "code_review_project_settings", :force => true do |t|
+    t.integer  "project_id"
+    t.integer  "tracker_id"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.integer  "updated_by"
+    t.boolean  "hide_code_review_tab",     :default => false
+    t.integer  "auto_relation",            :default => 1
+    t.integer  "assignment_tracker_id"
+    t.text     "auto_assign"
+    t.integer  "lock_version",             :default => 0,     :null => false
+    t.boolean  "tracker_in_review_dialog", :default => false
+  end
+
+  create_table "code_review_user_settings", :force => true do |t|
+    t.integer  "user_id",           :default => 0, :null => false
+    t.integer  "mail_notification", :default => 0, :null => false
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  create_table "code_reviews", :force => true do |t|
+    t.integer  "project_id"
+    t.integer  "change_id"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.integer  "line"
+    t.integer  "updated_by_id"
+    t.integer  "lock_version",        :default => 0, :null => false
+    t.integer  "status_changed_from"
+    t.integer  "status_changed_to"
+    t.integer  "issue_id"
+    t.string   "action_type"
+    t.string   "file_path"
+    t.string   "rev"
+    t.string   "rev_to"
+    t.integer  "attachment_id"
+    t.integer  "file_count",          :default => 0, :null => false
+    t.boolean  "diff_all"
+  end
+
+  create_table "comments", :force => true do |t|
+    t.string   "commented_type", :limit => 30, :default => "", :null => false
+    t.integer  "commented_id",                 :default => 0,  :null => false
+    t.integer  "author_id",                    :default => 0,  :null => false
+    t.text     "comments"
+    t.datetime "created_on",                                   :null => false
+    t.datetime "updated_on",                                   :null => false
+  end
+
+  add_index "comments", ["author_id"], :name => "index_comments_on_author_id"
+  add_index "comments", ["commented_id", "commented_type"], :name => "index_comments_on_commented_id_and_commented_type"
+
+  create_table "contest_notifications", :force => true do |t|
+    t.text     "title"
+    t.text     "content"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
+  create_table "contesting_projects", :force => true do |t|
+    t.integer  "project_id"
+    t.string   "contest_id"
+    t.integer  "user_id"
+    t.string   "description"
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
+    t.string   "reward"
+  end
+
+  create_table "contesting_softapplications", :force => true do |t|
+    t.integer  "softapplication_id"
+    t.integer  "contest_id"
+    t.integer  "user_id"
+    t.string   "description"
+    t.datetime "created_at",         :null => false
+    t.datetime "updated_at",         :null => false
+    t.string   "reward"
+  end
+
+  create_table "contestnotifications", :force => true do |t|
+    t.integer  "contest_id"
+    t.string   "title"
+    t.string   "summary"
+    t.text     "description"
+    t.integer  "author_id"
+    t.integer  "notificationcomments_count"
+    t.datetime "created_at",                 :null => false
+    t.datetime "updated_at",                 :null => false
+  end
+
+  create_table "contests", :force => true do |t|
+    t.string   "name"
+    t.string   "budget",      :default => ""
+    t.integer  "author_id"
+    t.date     "deadline"
+    t.string   "description"
+    t.integer  "commit"
+    t.string   "password"
+    t.datetime "created_on",                  :null => false
+    t.datetime "updated_on",                  :null => false
+  end
+
+  create_table "course_activities", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "course_id"
+    t.integer  "course_act_id"
+    t.string   "course_act_type"
+    t.datetime "created_at",      :null => false
+    t.datetime "updated_at",      :null => false
+  end
+
+  create_table "course_attachments", :force => true do |t|
+    t.string   "filename"
+    t.string   "disk_filename"
+    t.integer  "filesize"
+    t.string   "content_type"
+    t.string   "digest"
+    t.integer  "downloads"
+    t.string   "author_id"
+    t.string   "integer"
+    t.string   "description"
+    t.string   "disk_directory"
+    t.integer  "attachtype"
+    t.integer  "is_public"
+    t.datetime "created_at",                    :null => false
+    t.datetime "updated_at",                    :null => false
+    t.integer  "container_id",   :default => 0
+  end
+
+  create_table "course_contributor_scores", :force => true do |t|
+    t.integer  "course_id"
+    t.integer  "user_id"
+    t.integer  "message_num"
+    t.integer  "message_reply_num"
+    t.integer  "news_reply_num"
+    t.integer  "resource_num"
+    t.integer  "journal_num"
+    t.integer  "journal_reply_num"
+    t.datetime "created_at",        :null => false
+    t.datetime "updated_at",        :null => false
+    t.integer  "total_score"
+  end
+
+  create_table "course_groups", :force => true do |t|
+    t.string   "name"
+    t.integer  "course_id"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
+  create_table "course_infos", :force => true do |t|
+    t.integer  "course_id"
+    t.integer  "user_id"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
+  create_table "course_messages", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "course_id"
+    t.integer  "course_message_id"
+    t.string   "course_message_type"
+    t.integer  "viewed"
+    t.datetime "created_at",          :null => false
+    t.datetime "updated_at",          :null => false
+    t.string   "content"
+    t.integer  "status"
+  end
+
+  create_table "course_statuses", :force => true do |t|
+    t.integer  "changesets_count"
+    t.integer  "watchers_count"
+    t.integer  "course_id"
+    t.float    "grade",            :default => 0.0
+    t.integer  "course_ac_para",   :default => 0
+    t.datetime "created_at",                        :null => false
+    t.datetime "updated_at",                        :null => false
+  end
+
+  create_table "courses", :force => true do |t|
+    t.integer  "tea_id"
+    t.string   "name"
+    t.integer  "state"
+    t.string   "code"
+    t.integer  "time"
+    t.string   "extra"
+    t.datetime "created_at",                                   :null => false
+    t.datetime "updated_at",                                   :null => false
+    t.string   "location"
+    t.string   "term"
+    t.string   "string"
+    t.string   "password"
+    t.string   "setup_time"
+    t.string   "endup_time"
+    t.string   "class_period"
+    t.integer  "school_id"
+    t.text     "description"
+    t.integer  "status",                        :default => 1
+    t.integer  "attachmenttype",                :default => 2
+    t.integer  "lft"
+    t.integer  "rgt"
+    t.integer  "is_public",        :limit => 1, :default => 1
+    t.integer  "inherit_members",  :limit => 1, :default => 1
+    t.integer  "open_student",                  :default => 0
+    t.integer  "outline",                       :default => 0
+    t.integer  "publish_resource",              :default => 0
+  end
+
+  create_table "custom_fields", :force => true do |t|
+    t.string  "type",            :limit => 30, :default => "",    :null => false
+    t.string  "name",            :limit => 30, :default => "",    :null => false
+    t.string  "field_format",    :limit => 30, :default => "",    :null => false
+    t.text    "possible_values"
+    t.string  "regexp",                        :default => ""
+    t.integer "min_length",                    :default => 0,     :null => false
+    t.integer "max_length",                    :default => 0,     :null => false
+    t.boolean "is_required",                   :default => false, :null => false
+    t.boolean "is_for_all",                    :default => false, :null => false
+    t.boolean "is_filter",                     :default => false, :null => false
+    t.integer "position",                      :default => 1
+    t.boolean "searchable",                    :default => false
+    t.text    "default_value"
+    t.boolean "editable",                      :default => true
+    t.boolean "visible",                       :default => true,  :null => false
+    t.boolean "multiple",                      :default => false
+  end
+
+  add_index "custom_fields", ["id", "type"], :name => "index_custom_fields_on_id_and_type"
+
+  create_table "custom_fields_projects", :id => false, :force => true do |t|
+    t.integer "custom_field_id", :default => 0, :null => false
+    t.integer "project_id",      :default => 0, :null => false
+  end
+
+  add_index "custom_fields_projects", ["custom_field_id", "project_id"], :name => "index_custom_fields_projects_on_custom_field_id_and_project_id", :unique => true
+
+  create_table "custom_fields_trackers", :id => false, :force => true do |t|
+    t.integer "custom_field_id", :default => 0, :null => false
+    t.integer "tracker_id",      :default => 0, :null => false
+  end
+
+  add_index "custom_fields_trackers", ["custom_field_id", "tracker_id"], :name => "index_custom_fields_trackers_on_custom_field_id_and_tracker_id", :unique => true
+
+  create_table "custom_values", :force => true do |t|
+    t.string  "customized_type", :limit => 30, :default => "", :null => false
+    t.integer "customized_id",                 :default => 0,  :null => false
+    t.integer "custom_field_id",               :default => 0,  :null => false
+    t.text    "value"
+  end
+
+  add_index "custom_values", ["custom_field_id"], :name => "index_custom_values_on_custom_field_id"
+  add_index "custom_values", ["customized_type", "customized_id"], :name => "custom_values_customized"
+
+  create_table "delayed_jobs", :force => true do |t|
+    t.integer  "priority",   :default => 0, :null => false
+    t.integer  "attempts",   :default => 0, :null => false
+    t.text     "handler",                   :null => false
+    t.text     "last_error"
+    t.datetime "run_at"
+    t.datetime "locked_at"
+    t.datetime "failed_at"
+    t.string   "locked_by"
+    t.string   "queue"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  add_index "delayed_jobs", ["priority", "run_at"], :name => "delayed_jobs_priority"
+
+  create_table "discuss_demos", :force => true do |t|
+    t.string   "title"
+    t.text     "body"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
+  create_table "documents", :force => true do |t|
+    t.integer  "project_id",                :default => 0,  :null => false
+    t.integer  "category_id",               :default => 0,  :null => false
+    t.string   "title",       :limit => 60, :default => "", :null => false
+    t.text     "description"
+    t.datetime "created_on"
+    t.integer  "user_id",                   :default => 0
+    t.integer  "is_public",                 :default => 1
+  end
+
+  add_index "documents", ["category_id"], :name => "index_documents_on_category_id"
+  add_index "documents", ["created_on"], :name => "index_documents_on_created_on"
+  add_index "documents", ["project_id"], :name => "documents_project_id"
+
+  create_table "dts", :primary_key => "Num", :force => true do |t|
+    t.string   "Defect",        :limit => 50
+    t.string   "Category",      :limit => 50
+    t.string   "File"
+    t.string   "Method"
+    t.string   "Module",        :limit => 20
+    t.string   "Variable",      :limit => 50
+    t.integer  "StartLine"
+    t.integer  "IPLine"
+    t.string   "IPLineCode",    :limit => 200
+    t.string   "Judge",         :limit => 15
+    t.integer  "Review",        :limit => 1
+    t.string   "Description"
+    t.text     "PreConditions", :limit => 2147483647
+    t.text     "TraceInfo",     :limit => 2147483647
+    t.text     "Code",          :limit => 2147483647
+    t.integer  "project_id"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.integer  "id",                                  :null => false
+  end
+
+  create_table "enabled_modules", :force => true do |t|
+    t.integer "project_id"
+    t.string  "name",       :null => false
+    t.integer "course_id"
+  end
+
+  add_index "enabled_modules", ["project_id"], :name => "enabled_modules_project_id"
+
+  create_table "enumerations", :force => true do |t|
+    t.string  "name",          :limit => 30, :default => "",    :null => false
+    t.integer "position",                    :default => 1
+    t.boolean "is_default",                  :default => false, :null => false
+    t.string  "type"
+    t.boolean "active",                      :default => true,  :null => false
+    t.integer "project_id"
+    t.integer "parent_id"
+    t.string  "position_name", :limit => 30
+  end
+
+  add_index "enumerations", ["id", "type"], :name => "index_enumerations_on_id_and_type"
+  add_index "enumerations", ["project_id"], :name => "index_enumerations_on_project_id"
+
+  create_table "exercise_answers", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "exercise_question_id"
+    t.integer  "exercise_choice_id"
+    t.text     "answer_text"
+    t.datetime "created_at",           :null => false
+    t.datetime "updated_at",           :null => false
+  end
+
+  create_table "exercise_choices", :force => true do |t|
+    t.integer  "exercise_question_id"
+    t.text     "choice_text"
+    t.integer  "choice_position"
+    t.datetime "created_at",           :null => false
+    t.datetime "updated_at",           :null => false
+  end
+
+  create_table "exercise_questions", :force => true do |t|
+    t.string   "question_title"
+    t.integer  "question_type"
+    t.integer  "question_number"
+    t.integer  "exercise_id"
+    t.datetime "created_at",      :null => false
+    t.datetime "updated_at",      :null => false
+    t.integer  "question_score"
+  end
+
+  create_table "exercise_standard_answers", :force => true do |t|
+    t.integer  "exercise_question_id"
+    t.integer  "exercise_choice_id"
+    t.text     "answer_text"
+    t.datetime "created_at",           :null => false
+    t.datetime "updated_at",           :null => false
+  end
+
+  create_table "exercise_users", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "exercise_id"
+    t.integer  "score"
+    t.datetime "start_at"
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
+    t.datetime "end_at"
+    t.integer  "status"
+  end
+
+  create_table "exercises", :force => true do |t|
+    t.string   "exercise_name"
+    t.text     "exercise_description"
+    t.integer  "course_id"
+    t.integer  "exercise_status"
+    t.integer  "user_id"
+    t.integer  "time"
+    t.datetime "created_at",           :null => false
+    t.datetime "updated_at",           :null => false
+    t.datetime "publish_time"
+    t.datetime "end_time"
+    t.integer  "show_result"
+  end
+
+  create_table "first_pages", :force => true do |t|
+    t.string   "web_title"
+    t.string   "title"
+    t.text     "description"
+    t.string   "page_type"
+    t.datetime "created_at",                    :null => false
+    t.datetime "updated_at",                    :null => false
+    t.integer  "sort_type"
+    t.integer  "image_width",  :default => 107
+    t.integer  "image_height", :default => 63
+    t.integer  "show_course",  :default => 1
+    t.integer  "show_contest", :default => 1
+  end
+
+  create_table "forge_activities", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "project_id"
+    t.integer  "forge_act_id"
+    t.string   "forge_act_type"
+    t.integer  "org_id"
+    t.datetime "created_at",     :null => false
+    t.datetime "updated_at",     :null => false
+  end
+
+  add_index "forge_activities", ["forge_act_id"], :name => "index_forge_activities_on_forge_act_id"
+
+  create_table "forge_messages", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "project_id"
+    t.integer  "forge_message_id"
+    t.string   "forge_message_type"
+    t.integer  "viewed"
+    t.datetime "created_at",         :null => false
+    t.datetime "updated_at",         :null => false
+    t.string   "secret_key"
+    t.integer  "status"
+  end
+
+  create_table "forums", :force => true do |t|
+    t.string   "name",                        :null => false
+    t.text     "description"
+    t.integer  "topic_count",  :default => 0
+    t.integer  "memo_count",   :default => 0
+    t.integer  "last_memo_id", :default => 0
+    t.integer  "creator_id",                  :null => false
+    t.datetime "created_at",                  :null => false
+    t.datetime "updated_at",                  :null => false
+    t.integer  "sticky"
+    t.integer  "locked"
+  end
+
+  create_table "groups_users", :id => false, :force => true do |t|
+    t.integer "group_id", :null => false
+    t.integer "user_id",  :null => false
+  end
+
+  add_index "groups_users", ["group_id", "user_id"], :name => "groups_users_ids", :unique => true
+
+  create_table "homework_attaches", :force => true do |t|
+    t.integer  "bid_id"
+    t.integer  "user_id"
+    t.datetime "created_at",                        :null => false
+    t.datetime "updated_at",                        :null => false
+    t.string   "reward"
+    t.string   "name"
+    t.text     "description"
+    t.integer  "state"
+    t.integer  "project_id",       :default => 0
+    t.float    "score",            :default => 0.0
+    t.integer  "is_teacher_score", :default => 0
+  end
+
+  add_index "homework_attaches", ["bid_id"], :name => "index_homework_attaches_on_bid_id"
+
+  create_table "homework_commons", :force => true do |t|
+    t.string   "name"
+    t.integer  "user_id"
+    t.text     "description"
+    t.date     "publish_time"
+    t.date     "end_time"
+    t.integer  "homework_type",     :default => 1
+    t.string   "late_penalty"
+    t.integer  "course_id"
+    t.datetime "created_at",                       :null => false
+    t.datetime "updated_at",                       :null => false
+    t.integer  "teacher_priority",  :default => 1
+    t.integer  "anonymous_comment", :default => 0
+  end
+
+  create_table "homework_detail_manuals", :force => true do |t|
+    t.float    "ta_proportion"
+    t.integer  "comment_status"
+    t.date     "evaluation_start"
+    t.date     "evaluation_end"
+    t.integer  "evaluation_num"
+    t.integer  "absence_penalty",    :default => 1
+    t.integer  "homework_common_id"
+    t.datetime "created_at",                        :null => false
+    t.datetime "updated_at",                        :null => false
+  end
+
+  create_table "homework_detail_programings", :force => true do |t|
+    t.string   "language"
+    t.text     "standard_code",      :limit => 2147483647
+    t.integer  "homework_common_id"
+    t.datetime "created_at",                                                :null => false
+    t.datetime "updated_at",                                                :null => false
+    t.float    "ta_proportion",                            :default => 0.1
+    t.integer  "question_id"
+  end
+
+  create_table "homework_evaluations", :force => true do |t|
+    t.string   "user_id"
+    t.string   "homework_attach_id"
+    t.datetime "created_at",         :null => false
+    t.datetime "updated_at",         :null => false
+  end
+
+  create_table "homework_for_courses", :force => true do |t|
+    t.integer "course_id"
+    t.integer "bid_id"
+  end
+
+  add_index "homework_for_courses", ["bid_id"], :name => "index_homework_for_courses_on_bid_id"
+  add_index "homework_for_courses", ["course_id"], :name => "index_homework_for_courses_on_course_id"
+
+  create_table "homework_tests", :force => true do |t|
+    t.text     "input"
+    t.text     "output"
+    t.integer  "homework_common_id"
+    t.datetime "created_at",         :null => false
+    t.datetime "updated_at",         :null => false
+    t.integer  "result"
+    t.text     "error_msg"
+  end
+
+  create_table "homework_users", :force => true do |t|
+    t.string   "homework_attach_id"
+    t.string   "user_id"
+    t.datetime "created_at",         :null => false
+    t.datetime "updated_at",         :null => false
+  end
+
+  create_table "invite_lists", :force => true do |t|
+    t.integer  "project_id"
+    t.integer  "user_id"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+    t.string   "mail"
+  end
+
+  create_table "issue_categories", :force => true do |t|
+    t.integer "project_id",                   :default => 0,  :null => false
+    t.string  "name",           :limit => 30, :default => "", :null => false
+    t.integer "assigned_to_id"
+  end
+
+  add_index "issue_categories", ["assigned_to_id"], :name => "index_issue_categories_on_assigned_to_id"
+  add_index "issue_categories", ["project_id"], :name => "issue_categories_project_id"
+
+  create_table "issue_relations", :force => true do |t|
+    t.integer "issue_from_id",                 :null => false
+    t.integer "issue_to_id",                   :null => false
+    t.string  "relation_type", :default => "", :null => false
+    t.integer "delay"
+  end
+
+  add_index "issue_relations", ["issue_from_id", "issue_to_id"], :name => "index_issue_relations_on_issue_from_id_and_issue_to_id", :unique => true
+  add_index "issue_relations", ["issue_from_id"], :name => "index_issue_relations_on_issue_from_id"
+  add_index "issue_relations", ["issue_to_id"], :name => "index_issue_relations_on_issue_to_id"
+
+  create_table "issue_statuses", :force => true do |t|
+    t.string  "name",               :limit => 30, :default => "",    :null => false
+    t.boolean "is_closed",                        :default => false, :null => false
+    t.boolean "is_default",                       :default => false, :null => false
+    t.integer "position",                         :default => 1
+    t.integer "default_done_ratio"
+  end
+
+  add_index "issue_statuses", ["is_closed"], :name => "index_issue_statuses_on_is_closed"
+  add_index "issue_statuses", ["is_default"], :name => "index_issue_statuses_on_is_default"
+  add_index "issue_statuses", ["position"], :name => "index_issue_statuses_on_position"
+
+  create_table "issues", :force => true do |t|
+    t.integer  "tracker_id",                              :null => false
+    t.integer  "project_id",                              :null => false
+    t.string   "subject",              :default => "",    :null => false
+    t.text     "description"
+    t.date     "due_date"
+    t.integer  "category_id"
+    t.integer  "status_id",                               :null => false
+    t.integer  "assigned_to_id"
+    t.integer  "priority_id",                             :null => false
+    t.integer  "fixed_version_id"
+    t.integer  "author_id",                               :null => false
+    t.integer  "lock_version",         :default => 0,     :null => false
+    t.datetime "created_on"
+    t.datetime "updated_on"
+    t.date     "start_date"
+    t.integer  "done_ratio",           :default => 0,     :null => false
+    t.float    "estimated_hours"
+    t.integer  "parent_id"
+    t.integer  "root_id"
+    t.integer  "lft"
+    t.integer  "rgt"
+    t.boolean  "is_private",           :default => false, :null => false
+    t.datetime "closed_on"
+    t.integer  "project_issues_index"
+  end
+
+  add_index "issues", ["assigned_to_id"], :name => "index_issues_on_assigned_to_id"
+  add_index "issues", ["author_id"], :name => "index_issues_on_author_id"
+  add_index "issues", ["category_id"], :name => "index_issues_on_category_id"
+  add_index "issues", ["created_on"], :name => "index_issues_on_created_on"
+  add_index "issues", ["fixed_version_id"], :name => "index_issues_on_fixed_version_id"
+  add_index "issues", ["priority_id"], :name => "index_issues_on_priority_id"
+  add_index "issues", ["project_id"], :name => "issues_project_id"
+  add_index "issues", ["root_id", "lft", "rgt"], :name => "index_issues_on_root_id_and_lft_and_rgt"
+  add_index "issues", ["status_id"], :name => "index_issues_on_status_id"
+  add_index "issues", ["tracker_id"], :name => "index_issues_on_tracker_id"
+
+  create_table "join_in_competitions", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "competition_id"
+    t.datetime "created_at",     :null => false
+    t.datetime "updated_at",     :null => false
+  end
+
+  create_table "join_in_contests", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "bid_id"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
+  create_table "journal_details", :force => true do |t|
+    t.integer "journal_id",               :default => 0,  :null => false
+    t.string  "property",   :limit => 30, :default => "", :null => false
+    t.string  "prop_key",   :limit => 30, :default => "", :null => false
+    t.text    "old_value"
+    t.text    "value"
+  end
+
+  add_index "journal_details", ["journal_id"], :name => "journal_details_journal_id"
+
+  create_table "journal_replies", :id => false, :force => true do |t|
+    t.integer "journal_id"
+    t.integer "user_id"
+    t.integer "reply_id"
+  end
+
+  add_index "journal_replies", ["journal_id"], :name => "index_journal_replies_on_journal_id"
+  add_index "journal_replies", ["reply_id"], :name => "index_journal_replies_on_reply_id"
+  add_index "journal_replies", ["user_id"], :name => "index_journal_replies_on_user_id"
+
+  create_table "journals", :force => true do |t|
+    t.integer  "journalized_id",                 :default => 0,     :null => false
+    t.string   "journalized_type", :limit => 30, :default => "",    :null => false
+    t.integer  "user_id",                        :default => 0,     :null => false
+    t.text     "notes"
+    t.datetime "created_on",                                        :null => false
+    t.boolean  "private_notes",                  :default => false, :null => false
+  end
+
+  add_index "journals", ["created_on"], :name => "index_journals_on_created_on"
+  add_index "journals", ["journalized_id", "journalized_type"], :name => "journals_journalized_id"
+  add_index "journals", ["journalized_id"], :name => "index_journals_on_journalized_id"
+  add_index "journals", ["user_id"], :name => "index_journals_on_user_id"
+
+  create_table "journals_for_messages", :force => true do |t|
+    t.integer  "jour_id"
+    t.string   "jour_type"
+    t.integer  "user_id"
+    t.text     "notes"
+    t.integer  "status"
+    t.integer  "reply_id"
+    t.datetime "created_on",                  :null => false
+    t.datetime "updated_on",                  :null => false
+    t.string   "m_parent_id"
+    t.boolean  "is_readed"
+    t.integer  "m_reply_count"
+    t.integer  "m_reply_id"
+    t.integer  "is_comprehensive_evaluation"
+  end
+
+  create_table "kindeditor_assets", :force => true do |t|
+    t.string   "asset"
+    t.integer  "file_size"
+    t.string   "file_type"
+    t.integer  "owner_id"
+    t.string   "asset_type"
+    t.datetime "created_at",                :null => false
+    t.datetime "updated_at",                :null => false
+    t.integer  "owner_type", :default => 0
+  end
+
+  create_table "member_roles", :force => true do |t|
+    t.integer "member_id",      :null => false
+    t.integer "role_id",        :null => false
+    t.integer "inherited_from"
+  end
+
+  add_index "member_roles", ["member_id"], :name => "index_member_roles_on_member_id"
+  add_index "member_roles", ["role_id"], :name => "index_member_roles_on_role_id"
+
+  create_table "members", :force => true do |t|
+    t.integer  "user_id",           :default => 0,     :null => false
+    t.integer  "project_id",        :default => 0
+    t.datetime "created_on"
+    t.boolean  "mail_notification", :default => false, :null => false
+    t.integer  "course_id",         :default => -1
+    t.integer  "course_group_id",   :default => 0
+  end
+
+  add_index "members", ["project_id"], :name => "index_members_on_project_id"
+  add_index "members", ["user_id", "project_id", "course_id"], :name => "index_members_on_user_id_and_project_id", :unique => true
+  add_index "members", ["user_id"], :name => "index_members_on_user_id"
+
+  create_table "memo_messages", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "forum_id"
+    t.integer  "memo_id"
+    t.string   "memo_type"
+    t.integer  "viewed"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
+  create_table "memos", :force => true do |t|
+    t.integer  "forum_id",                         :null => false
+    t.integer  "parent_id"
+    t.string   "subject",                          :null => false
+    t.text     "content",                          :null => false
+    t.integer  "author_id",                        :null => false
+    t.integer  "replies_count", :default => 0
+    t.integer  "last_reply_id"
+    t.boolean  "lock",          :default => false
+    t.boolean  "sticky",        :default => false
+    t.datetime "created_at",                       :null => false
+    t.datetime "updated_at",                       :null => false
+    t.integer  "viewed_count",  :default => 0
+  end
+
+  create_table "message_alls", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "message_id"
+    t.string   "message_type"
+    t.datetime "created_at",   :null => false
+    t.datetime "updated_at",   :null => false
+  end
+
+  create_table "messages", :force => true do |t|
+    t.integer  "board_id",                         :null => false
+    t.integer  "parent_id"
+    t.string   "subject",       :default => "",    :null => false
+    t.text     "content"
+    t.integer  "author_id"
+    t.integer  "replies_count", :default => 0,     :null => false
+    t.integer  "last_reply_id"
+    t.datetime "created_on",                       :null => false
+    t.datetime "updated_on",                       :null => false
+    t.boolean  "locked",        :default => false
+    t.integer  "sticky",        :default => 0
+    t.integer  "reply_id"
+  end
+
+  add_index "messages", ["author_id"], :name => "index_messages_on_author_id"
+  add_index "messages", ["board_id"], :name => "messages_board_id"
+  add_index "messages", ["created_on"], :name => "index_messages_on_created_on"
+  add_index "messages", ["last_reply_id"], :name => "index_messages_on_last_reply_id"
+  add_index "messages", ["parent_id"], :name => "messages_parent_id"
+
+  create_table "news", :force => true do |t|
+    t.integer  "project_id"
+    t.string   "title",          :limit => 60, :default => "", :null => false
+    t.string   "summary",                      :default => ""
+    t.text     "description"
+    t.integer  "author_id",                    :default => 0,  :null => false
+    t.datetime "created_on"
+    t.integer  "comments_count",               :default => 0,  :null => false
+    t.integer  "course_id"
+    t.integer  "sticky",                       :default => 0
+  end
+
+  add_index "news", ["author_id"], :name => "index_news_on_author_id"
+  add_index "news", ["created_on"], :name => "index_news_on_created_on"
+  add_index "news", ["project_id"], :name => "news_project_id"
+
+  create_table "no_uses", :force => true do |t|
+    t.integer  "user_id",     :null => false
+    t.string   "no_use_type"
+    t.integer  "no_use_id"
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
+  end
+
+  create_table "notificationcomments", :force => true do |t|
+    t.string   "notificationcommented_type"
+    t.integer  "notificationcommented_id"
+    t.integer  "author_id"
+    t.text     "notificationcomments"
+    t.datetime "created_at",                 :null => false
+    t.datetime "updated_at",                 :null => false
+  end
+
+  create_table "onclick_times", :force => true do |t|
+    t.integer  "user_id"
+    t.datetime "onclick_time"
+    t.datetime "created_at",   :null => false
+    t.datetime "updated_at",   :null => false
+  end
+
+  create_table "open_id_authentication_associations", :force => true do |t|
+    t.integer "issued"
+    t.integer "lifetime"
+    t.string  "handle"
+    t.string  "assoc_type"
+    t.binary  "server_url"
+    t.binary  "secret"
+  end
+
+  create_table "open_id_authentication_nonces", :force => true do |t|
+    t.integer "timestamp",  :null => false
+    t.string  "server_url"
+    t.string  "salt",       :null => false
+  end
+
+  create_table "open_source_projects", :force => true do |t|
+    t.string   "name"
+    t.text     "description"
+    t.integer  "commit_count",     :default => 0
+    t.integer  "code_line",        :default => 0
+    t.integer  "users_count",      :default => 0
+    t.date     "last_commit_time"
+    t.string   "url"
+    t.date     "date_collected"
+    t.datetime "created_at",                      :null => false
+    t.datetime "updated_at",                      :null => false
+  end
+
+  create_table "option_numbers", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "memo"
+    t.integer  "messages_for_issues"
+    t.integer  "issues_status"
+    t.integer  "replay_for_message"
+    t.integer  "replay_for_memo"
+    t.integer  "follow"
+    t.integer  "tread"
+    t.integer  "praise_by_one"
+    t.integer  "praise_by_two"
+    t.integer  "praise_by_three"
+    t.integer  "tread_by_one"
+    t.integer  "tread_by_two"
+    t.integer  "tread_by_three"
+    t.integer  "changeset"
+    t.integer  "document"
+    t.integer  "attachment"
+    t.integer  "issue_done_ratio"
+    t.integer  "post_issue"
+    t.integer  "score_type"
+    t.integer  "total_score"
+    t.datetime "created_at",          :null => false
+    t.datetime "updated_at",          :null => false
+    t.integer  "project_id"
+  end
+
+  create_table "org_activities", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "org_act_id"
+    t.string   "org_act_type"
+    t.integer  "container_id"
+    t.string   "container_type"
+    t.datetime "created_at",     :null => false
+    t.datetime "updated_at",     :null => false
+  end
+
+  create_table "org_courses", :force => true do |t|
+    t.integer  "organization_id"
+    t.integer  "course_id"
+    t.datetime "created_at"
+  end
+
+  create_table "org_document_comments", :force => true do |t|
+    t.text     "title"
+    t.text     "content"
+    t.integer  "organization_id"
+    t.integer  "creator_id"
+    t.integer  "parent_id"
+    t.integer  "reply_id"
+    t.datetime "created_at",                         :null => false
+    t.datetime "updated_at",                         :null => false
+    t.boolean  "locked",          :default => false
+    t.integer  "sticky",          :default => 0
+  end
+
+  create_table "org_member_roles", :force => true do |t|
+    t.integer "org_member_id"
+    t.integer "role_id"
+  end
+
+  create_table "org_members", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "organization_id"
+<<<<<<< HEAD
+    t.string   "role"
+=======
+>>>>>>> 1ae514ca4857d7e2ad53b338731c1e01f899fb4d
+    t.datetime "created_at",      :null => false
+    t.datetime "updated_at",      :null => false
+  end
+
+  create_table "org_projects", :force => true do |t|
+    t.integer  "organization_id"
+    t.integer  "project_id"
+    t.datetime "created_at"
+  end
+
+  create_table "organizations", :force => true do |t|
+    t.string   "name"
+    t.text     "description"
+    t.integer  "creator_id"
+    t.integer  "home_id"
+    t.string   "domain"
+    t.boolean  "is_public"
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
+  end
+
+  create_table "phone_app_versions", :force => true do |t|
+    t.string   "version"
+    t.text     "description"
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
+  end
+
+  create_table "poll_answers", :force => true do |t|
+    t.integer  "poll_question_id"
+    t.text     "answer_text"
+    t.integer  "answer_position"
+    t.datetime "created_at",       :null => false
+    t.datetime "updated_at",       :null => false
+  end
+
+  create_table "poll_questions", :force => true do |t|
+    t.string   "question_title"
+    t.integer  "question_type"
+    t.integer  "is_necessary"
+    t.integer  "poll_id"
+    t.datetime "created_at",      :null => false
+    t.datetime "updated_at",      :null => false
+    t.integer  "question_number"
+  end
+
+  create_table "poll_users", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "poll_id"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
+  create_table "poll_votes", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "poll_question_id"
+    t.integer  "poll_answer_id"
+    t.text     "vote_text"
+    t.datetime "created_at",       :null => false
+    t.datetime "updated_at",       :null => false
+  end
+
+  create_table "polls", :force => true do |t|
+    t.string   "polls_name"
+    t.string   "polls_type"
+    t.integer  "polls_group_id"
+    t.integer  "polls_status"
+    t.integer  "user_id"
+    t.datetime "published_at"
+    t.datetime "closed_at"
+    t.datetime "created_at",                       :null => false
+    t.datetime "updated_at",                       :null => false
+    t.text     "polls_description"
+    t.integer  "show_result",       :default => 1
+  end
+
+  create_table "praise_tread_caches", :force => true do |t|
+    t.integer  "object_id",   :null => false
+    t.string   "object_type"
+    t.integer  "praise_num"
+    t.integer  "tread_num"
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
+  end
+
+  create_table "praise_treads", :force => true do |t|
+    t.integer  "user_id",                  :null => false
+    t.integer  "praise_tread_object_id"
+    t.string   "praise_tread_object_type"
+    t.integer  "praise_or_tread"
+    t.datetime "created_at",               :null => false
+    t.datetime "updated_at",               :null => false
+  end
+
+  create_table "principal_activities", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "principal_id"
+    t.integer  "principal_act_id"
+    t.string   "principal_act_type"
+    t.datetime "created_at",         :null => false
+    t.datetime "updated_at",         :null => false
+  end
+
+  create_table "project_infos", :force => true do |t|
+    t.integer  "project_id"
+    t.integer  "user_id"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
+  create_table "project_scores", :force => true do |t|
+    t.string   "project_id"
+    t.integer  "score"
+    t.datetime "created_at",                       :null => false
+    t.datetime "updated_at",                       :null => false
+    t.integer  "issue_num",         :default => 0
+    t.integer  "issue_journal_num", :default => 0
+    t.integer  "news_num",          :default => 0
+    t.integer  "documents_num",     :default => 0
+    t.integer  "changeset_num",     :default => 0
+    t.integer  "board_message_num", :default => 0
+  end
+
+  create_table "project_statuses", :force => true do |t|
+    t.integer "changesets_count"
+    t.integer "watchers_count"
+    t.integer "project_id"
+    t.integer "project_type"
+    t.float   "grade",            :default => 0.0
+    t.integer "course_ac_para",   :default => 0
+  end
+
+  add_index "project_statuses", ["grade"], :name => "index_project_statuses_on_grade"
+
+  create_table "projecting_softapplictions", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "softapplication_id"
+    t.integer  "project_id"
+    t.datetime "created_at",         :null => false
+    t.datetime "updated_at",         :null => false
+  end
+
+  create_table "projects", :force => true do |t|
+    t.string   "name",             :default => "",    :null => false
+    t.text     "description"
+    t.string   "homepage",         :default => ""
+    t.boolean  "is_public",        :default => true,  :null => false
+    t.integer  "parent_id"
+    t.datetime "created_on"
+    t.datetime "updated_on"
+    t.string   "identifier"
+    t.integer  "status",           :default => 1,     :null => false
+    t.integer  "lft"
+    t.integer  "rgt"
+    t.boolean  "inherit_members",  :default => false, :null => false
+    t.integer  "project_type"
+    t.boolean  "hidden_repo",      :default => false, :null => false
+    t.integer  "attachmenttype",   :default => 1
+    t.integer  "user_id"
+    t.integer  "dts_test",         :default => 0
+    t.string   "enterprise_name"
+    t.integer  "organization_id"
+    t.integer  "project_new_type"
+    t.integer  "gpid"
+  end
+
+  add_index "projects", ["lft"], :name => "index_projects_on_lft"
+  add_index "projects", ["rgt"], :name => "index_projects_on_rgt"
+
+  create_table "projects_trackers", :id => false, :force => true do |t|
+    t.integer "project_id", :default => 0, :null => false
+    t.integer "tracker_id", :default => 0, :null => false
+  end
+
+  add_index "projects_trackers", ["project_id", "tracker_id"], :name => "projects_trackers_unique", :unique => true
+  add_index "projects_trackers", ["project_id"], :name => "projects_trackers_project_id"
+
+  create_table "queries", :force => true do |t|
+    t.integer "project_id"
+    t.string  "name",          :default => "",    :null => false
+    t.text    "filters"
+    t.integer "user_id",       :default => 0,     :null => false
+    t.boolean "is_public",     :default => false, :null => false
+    t.text    "column_names"
+    t.text    "sort_criteria"
+    t.string  "group_by"
+    t.string  "type"
+  end
+
+  add_index "queries", ["project_id"], :name => "index_queries_on_project_id"
+  add_index "queries", ["user_id"], :name => "index_queries_on_user_id"
+
+  create_table "relative_memo_to_open_source_projects", :force => true do |t|
+    t.integer  "osp_id"
+    t.integer  "relative_memo_id"
+    t.datetime "created_at",       :null => false
+    t.datetime "updated_at",       :null => false
+  end
+
+  create_table "relative_memos", :force => true do |t|
+    t.integer  "osp_id"
+    t.integer  "parent_id"
+    t.string   "subject",                                                   :null => false
+    t.text     "content",            :limit => 16777215,                    :null => false
+    t.integer  "author_id"
+    t.integer  "replies_count",                          :default => 0
+    t.integer  "last_reply_id"
+    t.boolean  "lock",                                   :default => false
+    t.boolean  "sticky",                                 :default => false
+    t.boolean  "is_quote",                               :default => false
+    t.datetime "created_at",                                                :null => false
+    t.datetime "updated_at",                                                :null => false
+    t.integer  "viewed_count_crawl",                     :default => 0
+    t.integer  "viewed_count_local",                     :default => 0
+    t.string   "url"
+    t.string   "username"
+    t.string   "userhomeurl"
+    t.date     "date_collected"
+    t.string   "topic_resource"
+  end
+
+  create_table "repositories", :force => true do |t|
+    t.integer "project_id",                  :default => 0,     :null => false
+    t.string  "url",                         :default => "",    :null => false
+    t.string  "login",         :limit => 60, :default => ""
+    t.string  "password",                    :default => ""
+    t.string  "root_url",                    :default => ""
+    t.string  "type"
+    t.string  "path_encoding", :limit => 64
+    t.string  "log_encoding",  :limit => 64
+    t.text    "extra_info"
+    t.string  "identifier"
+    t.boolean "is_default",                  :default => false
+    t.boolean "hidden",                      :default => false
+  end
+
+  add_index "repositories", ["project_id"], :name => "index_repositories_on_project_id"
+
+  create_table "rich_rich_files", :force => true do |t|
+    t.datetime "created_at",                                 :null => false
+    t.datetime "updated_at",                                 :null => false
+    t.string   "rich_file_file_name"
+    t.string   "rich_file_content_type"
+    t.integer  "rich_file_file_size"
+    t.datetime "rich_file_updated_at"
+    t.string   "owner_type"
+    t.integer  "owner_id"
+    t.text     "uri_cache"
+    t.string   "simplified_type",        :default => "file"
+  end
+
+  create_table "roles", :force => true do |t|
+    t.string  "name",              :limit => 30, :default => "",        :null => false
+    t.integer "position",                        :default => 1
+    t.boolean "assignable",                      :default => true
+    t.integer "builtin",                         :default => 0,         :null => false
+    t.text    "permissions"
+    t.string  "issues_visibility", :limit => 30, :default => "default", :null => false
+  end
+
+  create_table "schools", :force => true do |t|
+    t.string   "name"
+    t.string   "province"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+    t.string   "logo_link"
+    t.string   "pinyin"
+  end
+
+  create_table "seems_rateable_cached_ratings", :force => true do |t|
+    t.integer  "cacheable_id",   :limit => 8
+    t.string   "cacheable_type"
+    t.float    "avg",                         :null => false
+    t.integer  "cnt",                         :null => false
+    t.string   "dimension"
+    t.datetime "created_at",                  :null => false
+    t.datetime "updated_at",                  :null => false
+  end
+
+  create_table "seems_rateable_rates", :force => true do |t|
+    t.integer  "rater_id",         :limit => 8
+    t.integer  "rateable_id"
+    t.string   "rateable_type"
+    t.float    "stars",                                        :null => false
+    t.string   "dimension"
+    t.datetime "created_at",                                   :null => false
+    t.datetime "updated_at",                                   :null => false
+    t.integer  "is_teacher_score",              :default => 0
+  end
+
+  create_table "settings", :force => true do |t|
+    t.string   "name",       :default => "", :null => false
+    t.text     "value"
+    t.datetime "updated_on"
+  end
+
+  add_index "settings", ["name"], :name => "index_settings_on_name"
+
+  create_table "shares", :force => true do |t|
+    t.date     "created_on"
+    t.string   "url"
+    t.string   "title"
+    t.integer  "share_type"
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
+    t.integer  "project_id"
+    t.integer  "user_id"
+    t.string   "description"
+  end
+
+  create_table "softapplications", :force => true do |t|
+    t.string   "name"
+    t.text     "description"
+    t.integer  "app_type_id"
+    t.string   "app_type_name"
+    t.string   "android_min_version_available"
+    t.integer  "user_id"
+    t.datetime "created_at",                    :null => false
+    t.datetime "updated_at",                    :null => false
+    t.integer  "contest_id"
+    t.integer  "softapplication_id"
+    t.integer  "is_public"
+    t.string   "application_developers"
+    t.string   "deposit_project_url"
+    t.string   "deposit_project"
+    t.integer  "project_id"
+  end
+
+  create_table "student_work_tests", :force => true do |t|
+    t.integer  "student_work_id"
+    t.datetime "created_at",                     :null => false
+    t.datetime "updated_at",                     :null => false
+    t.integer  "status",          :default => 9
+    t.text     "results"
+    t.text     "src"
+  end
+
+  create_table "student_works", :force => true do |t|
+    t.string   "name"
+    t.text     "description",             :limit => 2147483647
+    t.integer  "homework_common_id"
+    t.integer  "user_id"
+    t.float    "final_score"
+    t.float    "teacher_score"
+    t.float    "student_score"
+    t.float    "teaching_asistant_score"
+    t.integer  "project_id",                                    :default => 0
+    t.datetime "created_at",                                                       :null => false
+    t.datetime "updated_at",                                                       :null => false
+    t.integer  "late_penalty",                                  :default => 0
+    t.integer  "absence_penalty",                               :default => 0
+    t.float    "system_score",                                  :default => 0.0
+    t.boolean  "is_test",                                       :default => false
+  end
+
+  create_table "student_works_evaluation_distributions", :force => true do |t|
+    t.integer  "student_work_id"
+    t.integer  "user_id"
+    t.datetime "created_at",      :null => false
+    t.datetime "updated_at",      :null => false
+  end
+
+  create_table "student_works_scores", :force => true do |t|
+    t.integer  "student_work_id"
+    t.integer  "user_id"
+    t.integer  "score"
+    t.text     "comment"
+    t.integer  "reviewer_role"
+    t.datetime "created_at",      :null => false
+    t.datetime "updated_at",      :null => false
+  end
+
+  create_table "students_for_courses", :force => true do |t|
+    t.integer  "student_id"
+    t.integer  "course_id"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
+  add_index "students_for_courses", ["course_id"], :name => "index_students_for_courses_on_course_id"
+  add_index "students_for_courses", ["student_id"], :name => "index_students_for_courses_on_student_id"
+
+  create_table "system_messages", :force => true do |t|
+    t.integer  "user_id"
+    t.string   "content"
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
+    t.text     "description"
+    t.string   "subject"
+  end
+
+  create_table "taggings", :force => true do |t|
+    t.integer  "tag_id"
+    t.integer  "taggable_id"
+    t.string   "taggable_type"
+    t.integer  "tagger_id"
+    t.string   "tagger_type"
+    t.string   "context",       :limit => 128
+    t.datetime "created_at"
+  end
+
+  add_index "taggings", ["tag_id"], :name => "index_taggings_on_tag_id"
+  add_index "taggings", ["taggable_id", "taggable_type", "context"], :name => "index_taggings_on_taggable_id_and_taggable_type_and_context"
+  add_index "taggings", ["taggable_type"], :name => "index_taggings_on_taggable_type"
+
+  create_table "tags", :force => true do |t|
+    t.string "name"
+  end
+
+  create_table "teachers", :force => true do |t|
+    t.string   "tea_name"
+    t.string   "location"
+    t.integer  "couurse_time"
+    t.integer  "course_code"
+    t.datetime "created_at",   :null => false
+    t.datetime "updated_at",   :null => false
+    t.string   "extra"
+  end
+
+  create_table "time_entries", :force => true do |t|
+    t.integer  "project_id",  :null => false
+    t.integer  "user_id",     :null => false
+    t.integer  "issue_id"
+    t.float    "hours",       :null => false
+    t.string   "comments"
+    t.integer  "activity_id", :null => false
+    t.date     "spent_on",    :null => false
+    t.integer  "tyear",       :null => false
+    t.integer  "tmonth",      :null => false
+    t.integer  "tweek",       :null => false
+    t.datetime "created_on",  :null => false
+    t.datetime "updated_on",  :null => false
+  end
+
+  add_index "time_entries", ["activity_id"], :name => "index_time_entries_on_activity_id"
+  add_index "time_entries", ["created_on"], :name => "index_time_entries_on_created_on"
+  add_index "time_entries", ["issue_id"], :name => "time_entries_issue_id"
+  add_index "time_entries", ["project_id"], :name => "time_entries_project_id"
+  add_index "time_entries", ["user_id"], :name => "index_time_entries_on_user_id"
+
+  create_table "tokens", :force => true do |t|
+    t.integer  "user_id",                  :default => 0,  :null => false
+    t.string   "action",     :limit => 30, :default => "", :null => false
+    t.string   "value",      :limit => 40, :default => "", :null => false
+    t.datetime "created_on",                               :null => false
+  end
+
+  add_index "tokens", ["user_id"], :name => "index_tokens_on_user_id"
+  add_index "tokens", ["value"], :name => "tokens_value", :unique => true
+
+  create_table "trackers", :force => true do |t|
+    t.string  "name",          :limit => 30, :default => "",    :null => false
+    t.boolean "is_in_chlog",                 :default => false, :null => false
+    t.integer "position",                    :default => 1
+    t.boolean "is_in_roadmap",               :default => true,  :null => false
+    t.integer "fields_bits",                 :default => 0
+  end
+
+  create_table "user_activities", :force => true do |t|
+    t.string   "act_type"
+    t.integer  "act_id"
+    t.string   "container_type"
+    t.integer  "container_id"
+    t.datetime "created_at",     :null => false
+    t.datetime "updated_at",     :null => false
+    t.integer  "user_id"
+  end
+
+  create_table "user_extensions", :force => true do |t|
+    t.integer  "user_id",                            :null => false
+    t.date     "birthday"
+    t.string   "brief_introduction"
+    t.integer  "gender"
+    t.string   "location"
+    t.string   "occupation"
+    t.integer  "work_experience"
+    t.integer  "zip_code"
+    t.datetime "created_at",                         :null => false
+    t.datetime "updated_at",                         :null => false
+    t.string   "technical_title"
+    t.integer  "identity"
+    t.string   "student_id"
+    t.string   "teacher_realname"
+    t.string   "student_realname"
+    t.string   "location_city"
+    t.integer  "school_id"
+    t.string   "description",        :default => ""
+  end
+
+  create_table "user_feedback_messages", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "journals_for_message_id"
+    t.string   "journals_for_message_type"
+    t.integer  "viewed"
+    t.datetime "created_at",                :null => false
+    t.datetime "updated_at",                :null => false
+  end
+
+  create_table "user_grades", :force => true do |t|
+    t.integer  "user_id",                     :null => false
+    t.integer  "project_id",                  :null => false
+    t.float    "grade",      :default => 0.0
+    t.datetime "created_at",                  :null => false
+    t.datetime "updated_at",                  :null => false
+  end
+
+  add_index "user_grades", ["grade"], :name => "index_user_grades_on_grade"
+  add_index "user_grades", ["project_id"], :name => "index_user_grades_on_project_id"
+  add_index "user_grades", ["user_id"], :name => "index_user_grades_on_user_id"
+
+  create_table "user_levels", :force => true do |t|
+    t.integer "user_id"
+    t.integer "level"
+  end
+
+  create_table "user_preferences", :force => true do |t|
+    t.integer "user_id",   :default => 0,     :null => false
+    t.text    "others"
+    t.boolean "hide_mail", :default => false
+    t.string  "time_zone"
+  end
+
+  add_index "user_preferences", ["user_id"], :name => "index_user_preferences_on_user_id"
+
+  create_table "user_score_details", :force => true do |t|
+    t.integer  "current_user_id"
+    t.integer  "target_user_id"
+    t.string   "score_type"
+    t.string   "score_action"
+    t.integer  "user_id"
+    t.integer  "old_score"
+    t.integer  "new_score"
+    t.integer  "current_user_level"
+    t.integer  "target_user_level"
+    t.integer  "score_changeable_obj_id"
+    t.string   "score_changeable_obj_type"
+    t.datetime "created_at",                :null => false
+    t.datetime "updated_at",                :null => false
+  end
+
+  create_table "user_scores", :force => true do |t|
+    t.integer  "user_id",       :null => false
+    t.integer  "collaboration"
+    t.integer  "influence"
+    t.integer  "skill"
+    t.integer  "active"
+    t.datetime "created_at",    :null => false
+    t.datetime "updated_at",    :null => false
+  end
+
+  create_table "user_statuses", :force => true do |t|
+    t.integer  "changesets_count"
+    t.integer  "watchers_count"
+    t.integer  "user_id"
+    t.datetime "created_at",                        :null => false
+    t.datetime "updated_at",                        :null => false
+    t.float    "grade",            :default => 0.0
+  end
+
+  add_index "user_statuses", ["changesets_count"], :name => "index_user_statuses_on_changesets_count"
+  add_index "user_statuses", ["grade"], :name => "index_user_statuses_on_grade"
+  add_index "user_statuses", ["watchers_count"], :name => "index_user_statuses_on_watchers_count"
+
+  create_table "users", :force => true do |t|
+    t.string   "login",                           :default => "",    :null => false
+    t.string   "hashed_password",   :limit => 40, :default => "",    :null => false
+    t.string   "firstname",         :limit => 30, :default => "",    :null => false
+    t.string   "lastname",                        :default => "",    :null => false
+    t.string   "mail",              :limit => 60, :default => "",    :null => false
+    t.boolean  "admin",                           :default => false, :null => false
+    t.integer  "status",                          :default => 1,     :null => false
+    t.datetime "last_login_on"
+    t.string   "language",          :limit => 5,  :default => ""
+    t.integer  "auth_source_id"
+    t.datetime "created_on"
+    t.datetime "updated_on"
+    t.string   "type"
+    t.string   "identity_url"
+    t.string   "mail_notification",               :default => "",    :null => false
+    t.string   "salt",              :limit => 64
+    t.integer  "gid"
+  end
+
+  add_index "users", ["auth_source_id"], :name => "index_users_on_auth_source_id"
+  add_index "users", ["id", "type"], :name => "index_users_on_id_and_type"
+  add_index "users", ["type"], :name => "index_users_on_type"
+
+  create_table "versions", :force => true do |t|
+    t.integer  "project_id",      :default => 0,      :null => false
+    t.string   "name",            :default => "",     :null => false
+    t.string   "description",     :default => ""
+    t.date     "effective_date"
+    t.datetime "created_on"
+    t.datetime "updated_on"
+    t.string   "wiki_page_title"
+    t.string   "status",          :default => "open"
+    t.string   "sharing",         :default => "none", :null => false
+  end
+
+  add_index "versions", ["project_id"], :name => "versions_project_id"
+  add_index "versions", ["sharing"], :name => "index_versions_on_sharing"
+
+  create_table "visitors", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "master_id"
+    t.datetime "updated_on"
+    t.datetime "created_on"
+  end
+
+  add_index "visitors", ["master_id"], :name => "index_visitors_master_id"
+  add_index "visitors", ["updated_on"], :name => "index_visitors_updated_on"
+  add_index "visitors", ["user_id"], :name => "index_visitors_user_id"
+
+  create_table "watchers", :force => true do |t|
+    t.string  "watchable_type", :default => "", :null => false
+    t.integer "watchable_id",   :default => 0,  :null => false
+    t.integer "user_id"
+  end
+
+  add_index "watchers", ["user_id", "watchable_type"], :name => "watchers_user_id_type"
+  add_index "watchers", ["user_id"], :name => "index_watchers_on_user_id"
+  add_index "watchers", ["watchable_id", "watchable_type"], :name => "index_watchers_on_watchable_id_and_watchable_type"
+
+  create_table "web_footer_companies", :force => true do |t|
+    t.string   "name"
+    t.string   "logo_size"
+    t.string   "url"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
+  create_table "web_footer_oranizers", :force => true do |t|
+    t.string   "name"
+    t.text     "description"
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
+  end
+
+  create_table "wiki_content_versions", :force => true do |t|
+    t.integer  "wiki_content_id",                                       :null => false
+    t.integer  "page_id",                                               :null => false
+    t.integer  "author_id"
+    t.binary   "data",            :limit => 2147483647
+    t.string   "compression",     :limit => 6,          :default => ""
+    t.string   "comments",                              :default => ""
+    t.datetime "updated_on",                                            :null => false
+    t.integer  "version",                                               :null => false
+  end
+
+  add_index "wiki_content_versions", ["updated_on"], :name => "index_wiki_content_versions_on_updated_on"
+  add_index "wiki_content_versions", ["wiki_content_id"], :name => "wiki_content_versions_wcid"
+
+  create_table "wiki_contents", :force => true do |t|
+    t.integer  "page_id",                                          :null => false
+    t.integer  "author_id"
+    t.text     "text",       :limit => 2147483647
+    t.string   "comments",                         :default => ""
+    t.datetime "updated_on",                                       :null => false
+    t.integer  "version",                                          :null => false
+  end
+
+  add_index "wiki_contents", ["author_id"], :name => "index_wiki_contents_on_author_id"
+  add_index "wiki_contents", ["page_id"], :name => "wiki_contents_page_id"
+
+  create_table "wiki_pages", :force => true do |t|
+    t.integer  "wiki_id",                       :null => false
+    t.string   "title",                         :null => false
+    t.datetime "created_on",                    :null => false
+    t.boolean  "protected",  :default => false, :null => false
+    t.integer  "parent_id"
+  end
+
+  add_index "wiki_pages", ["parent_id"], :name => "index_wiki_pages_on_parent_id"
+  add_index "wiki_pages", ["wiki_id", "title"], :name => "wiki_pages_wiki_id_title"
+  add_index "wiki_pages", ["wiki_id"], :name => "index_wiki_pages_on_wiki_id"
+
+  create_table "wiki_redirects", :force => true do |t|
+    t.integer  "wiki_id",      :null => false
+    t.string   "title"
+    t.string   "redirects_to"
+    t.datetime "created_on",   :null => false
+  end
+
+  add_index "wiki_redirects", ["wiki_id", "title"], :name => "wiki_redirects_wiki_id_title"
+  add_index "wiki_redirects", ["wiki_id"], :name => "index_wiki_redirects_on_wiki_id"
+
+  create_table "wikis", :force => true do |t|
+    t.integer "project_id",                :null => false
+    t.string  "start_page",                :null => false
+    t.integer "status",     :default => 1, :null => false
+  end
+
+  add_index "wikis", ["project_id"], :name => "wikis_project_id"
+
+  create_table "workflows", :force => true do |t|
+    t.integer "tracker_id",                  :default => 0,     :null => false
+    t.integer "old_status_id",               :default => 0,     :null => false
+    t.integer "new_status_id",               :default => 0,     :null => false
+    t.integer "role_id",                     :default => 0,     :null => false
+    t.boolean "assignee",                    :default => false, :null => false
+    t.boolean "author",                      :default => false, :null => false
+    t.string  "type",          :limit => 30
+    t.string  "field_name",    :limit => 30
+    t.string  "rule",          :limit => 30
+  end
+
+  add_index "workflows", ["new_status_id"], :name => "index_workflows_on_new_status_id"
+  add_index "workflows", ["old_status_id"], :name => "index_workflows_on_old_status_id"
+  add_index "workflows", ["role_id", "tracker_id", "old_status_id"], :name => "wkfs_role_tracker_old_status"
+  add_index "workflows", ["role_id"], :name => "index_workflows_on_role_id"
+
+  create_table "works_categories", :force => true do |t|
+    t.string   "category"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
+  create_table "zip_packs", :force => true do |t|
+    t.integer  "user_id"
+    t.integer  "homework_id"
+    t.string   "file_digest"
+    t.string   "file_path"
+    t.integer  "pack_times",   :default => 1
+    t.integer  "pack_size",    :default => 0
+    t.text     "file_digests"
+    t.datetime "created_at",                  :null => false
+    t.datetime "updated_at",                  :null => false
+  end
+
+end
diff --git a/lib/gitlab-cli/bin/gitlab b/lib/gitlab-cli/bin/gitlab
old mode 100644
new mode 100755
diff --git a/lib/gitlab-cli/lib/gitlab/client/projects.rb b/lib/gitlab-cli/lib/gitlab/client/projects.rb
index 6247294f3..3fab4347f 100644
--- a/lib/gitlab-cli/lib/gitlab/client/projects.rb
+++ b/lib/gitlab-cli/lib/gitlab/client/projects.rb
@@ -239,6 +239,12 @@ class Gitlab::Client
       delete("/projects/#{project}/hooks/#{id}")
     end
 
+    # Forks a project into the user namespace of the authenticated user.
+    # @param  [Integer] - The ID of the project to be forked
+    def fork(id)
+      post("/projects/fork/#{id}")
+    end
+
     # Mark this project as forked from the other
     #
     # @example
diff --git a/lib/grack/bin/console b/lib/grack/bin/console
old mode 100644
new mode 100755
diff --git a/lib/grack/bin/testserver b/lib/grack/bin/testserver
old mode 100644
new mode 100755
diff --git a/lib/tasks/sync_sigle_rep.rake b/lib/tasks/sync_sigle_rep.rake
index 591dcce84..e68e37ee8 100644
--- a/lib/tasks/sync_sigle_rep.rake
+++ b/lib/tasks/sync_sigle_rep.rake
@@ -12,19 +12,15 @@ namespace :sync_rep do
         puts count
         unless count > 1
           rep.identifier
-          puts "################################"
-          puts project.id
-          puts rep.id
           s = Trustie::Gitlab::Sync.new
           s.sync_project(project, path: rep.identifier, import_url: rep.url)
           rep.type = 'Repository::Gitlab'
           rep.save
-          puts "*************************************"
-          puts project.id
-          puts rep.id
-          puts rep.identifier
         end
       end
     end
   end
+
+  task :delete_rep => :environment do
+  end
 end
\ No newline at end of file
diff --git a/lib/trustie/gitlab/manage_member.rb b/lib/trustie/gitlab/manage_member.rb
index b8c2149f4..433b101f5 100644
--- a/lib/trustie/gitlab/manage_member.rb
+++ b/lib/trustie/gitlab/manage_member.rb
@@ -1,60 +1,63 @@
-#coding=utf-8
-#
-# 
-module Trustie
-  module Gitlab
-
-    module ManageMember
-      def self.included(base)
-        base.class_eval {
-          before_create :add_gitlab_member
-          before_destroy :delete_gitlab_member
-          after_save :change_gitlab_member
-        }
-      end
-
-      def change_gitlab_member
-        if isGitlabProject?
-          @g ||= ::Gitlab.client
-          @g.edit_team_member(project.gpid, self.member.user.gid, self.role.to_gitlab_role )
-        end
-      end
-
-      def add_gitlab_member
-        if isGitlabProject?
-          @g ||= ::Gitlab.client
-          @g.add_team_member(project.gpid, self.member.user.gid, self.role.to_gitlab_role )
-        end
-      end
-
-      def delete_gitlab_member
-        if isGitlabProject?
-          if member.roles.count <=1
-              @g ||= ::Gitlab.client
-              @g.remove_team_member(project.gpid, self.member.user.gid)
-          end
-        end
-      end
-
-      private
-      def project
-        self.member.project
-      end
-
-      def repository
-        unless project.nil?
-          project.repository
-        end
-      end
-
-      def isGitlabProject?
-        unless repository.nil?
-          repository && repository.gitlab?
-        end
-      end
-
-    end
-
-  end
-end
-
+#coding=utf-8
+#
+# 
+module Trustie
+  module Gitlab
+
+    module ManageMember
+      def self.included(base)
+        base.class_eval {
+          before_create :add_gitlab_member
+          before_destroy :delete_gitlab_member
+          after_save :change_gitlab_member
+        }
+      end
+
+      def change_gitlab_member
+        if isGitlabProject?
+          @g ||= ::Gitlab.client
+          @g.edit_team_member(project.gpid, self.member.user.gid, self.role.to_gitlab_role )
+        end
+      end
+
+      def add_gitlab_member
+        if isGitlabProject?
+          @g ||= ::Gitlab.client
+          if self.member.user.gid.nil?
+            add_user(self.member.user)
+          end
+          @g.add_team_member(project.gpid, self.member.user.gid, self.role.to_gitlab_role )
+        end
+      end
+
+      def delete_gitlab_member
+        if isGitlabProject?
+          if member.roles.count <=1
+              @g ||= ::Gitlab.client
+              @g.remove_team_member(project.gpid, self.member.user.gid)
+          end
+        end
+      end
+
+      private
+      def project
+        self.member.project
+      end
+
+      def repository
+        unless project.nil?
+          project.repository
+        end
+      end
+
+      def isGitlabProject?
+        unless repository.nil?
+          repository && repository.gitlab?
+        end
+      end
+
+    end
+
+  end
+end
+
diff --git a/lib/trustie/gitlab/manage_user.rb b/lib/trustie/gitlab/manage_user.rb
index a87984490..489dd7b9b 100644
--- a/lib/trustie/gitlab/manage_user.rb
+++ b/lib/trustie/gitlab/manage_user.rb
@@ -11,7 +11,7 @@ module Trustie
             base.class_eval {
                 #before_create :add_gitlab_user
                 #before_destroy :delete_gitlab_user
-                before_save :change_gitlab_user
+                #before_save :change_gitlab_user
             }
         end
 
@@ -22,10 +22,10 @@ module Trustie
         def delete_gitlab_user
             del_user(self)
         end
-
-        def change_gitlab_user
-            change_password(self.gid, self.hashed_password, self.salt)
-        end
+        #
+        #def change_gitlab_user
+        #    change_password(self.gid, self.hashed_password, self.salt)
+        #end
 
         def g
             @g ||= ::Gitlab.client
diff --git a/lib/trustie/gitlab/sync.rb b/lib/trustie/gitlab/sync.rb
index ac01a44ec..1f6f7c146 100644
--- a/lib/trustie/gitlab/sync.rb
+++ b/lib/trustie/gitlab/sync.rb
@@ -73,11 +73,6 @@ module Trustie
 
             # import url http://xianbo_trustie2:1234@repository.trustie.net/xianbo/trustie2.git
             # can use password
-            puts "@@@@@@@@@@@@@@@@@@@@@@@"
-            puts path
-            puts project.description
-            puts gid
-            puts import_url
             gproject = self.g.create_project(path, 
                             path: path,
                             description: project.description, 
@@ -91,7 +86,6 @@ module Trustie
                             import_url: import_url,
                             visibility_level: project.is_public? ? UserLevel::PUBLIC : UserLevel::PRIVATE
                             )
-            puts "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%"
             project.gpid = gproject.id
             project.save!
             puts "Successfully created #{project.name}"
diff --git a/public/javascripts/course.js b/public/javascripts/course.js
index 9f1815695..15968772f 100644
--- a/public/javascripts/course.js
+++ b/public/javascripts/course.js
@@ -1306,3 +1306,60 @@ function cancel_org_course_relation(id, courseId){
 //        alert('<%= @course.id%>')
 //    })
 //})
+
+//项目点击展开
+function expand_tools_expand(content) {
+    if (content == "invit") {
+        $("#expand_tools_expand_invit").toggleClass("currentDd").siblings(".subNav").removeClass("currentDd");
+        $("#expand_tools_expand_invit").toggleClass("currentDt").siblings(".subNav").removeClass("currentDt");
+        $("#expand_tools_expand_invit").next(".navContent").slideToggle(500).siblings(".navContent").slideUp(500);
+    }
+    else {
+//        $("#expand_tools_expand").toggleClass("currentDd").siblings(".subNav").removeClass("currentDd");
+//        $("#expand_tools_expand").toggleClass("currentDt").siblings(".subNav").removeClass("currentDt");
+//        $("#expand_tools_expand").next(".navContent").slideToggle(500).siblings(".navContent").slideUp(500);
+        $("#navContent").toggle(500);
+    }
+
+    // 修改数字控制速度， slideUp(500)控制卷起速度
+}
+
+//通过cookie存储伸开形式
+$(function(){
+    var personalized_expand_key = "personalized_expand";
+    function personalized_init(){
+        var personalized_map = cookieget(personalized_expand_key);
+        if(personalized_map!=false){
+            personalized_map = JSON.parse(personalized_map);
+            $("*[nhtype='toggle4cookie']").each(function(){
+                var personalized_id=$(this).data('id');
+                var val = personalized_map[personalized_id];
+                if(val!=undefined && val!=$(this).data('val')){
+                    personalized_click($(this),0);
+                }
+            });
+        }
+    }
+    function personalized_click(obj,timeout){
+        var target = $(obj.data('target'));
+        var oldval = obj.data('val');
+        var val='';
+        if(oldval=='expand'){val='retract';}else{val='expand';}
+        obj.data('val',val);
+        var personalized_map = cookieget(personalized_expand_key);
+        if(personalized_map == false){
+            personalized_map={};
+        }else{
+            personalized_map = JSON.parse(personalized_map);
+        }
+        var personalized_id=obj.data('id');
+        personalized_map[personalized_id]=val;
+        cookiesave(personalized_expand_key,JSON.stringify(personalized_map));
+        target.toggle(timeout);
+    }
+    $("*[nhtype='toggle4cookie']").on('click',function(){
+        personalized_click($(this),500);
+    });
+
+    personalized_init();
+});
\ No newline at end of file
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index 5ff34a4e1..ac3a78020 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -1156,7 +1156,7 @@ a:hover.btn_cancel{ color:#666;}
 .mr118 {margin-right:118px !important;}
 .questionContainer {width:698px; border:1px solid #cbcbcb;background:#eeeeee; padding:10px; margin-bottom:10px;}
 .questionTitle{ width:644px; height:30px; border:1px solid #cbcbcb; padding-left:5px; background:#fff;}
-.examTime {width:40px; border:1px solid #cbcbcb; outline:none; height:28px; text-align:center; padding-left:0px; }
+.examTime {width:90px; border:1px solid #cbcbcb; outline:none; height:28px; text-align:center; padding-left:0px; }
 .testStatus{width:698px; border:1px solid #cbcbcb; padding:10px; margin-bottom:10px; background:#ffffff; position:relative; color:#767676;}
 .testEdit{ background:url(images/icons.png) 0px -272px no-repeat; width:16px; height:27px; display:block;float:right; bottom:10px; right:10px; position:absolute;}
 a:hover.testEdit{ background:url(images/icons.png) -21px -272px  no-repeat;}
@@ -1166,4 +1166,14 @@ a:hover.testEdit{ background:url(images/icons.png) -21px -272px  no-repeat;}
 .questionEditContainer {border:1px solid #cbcbcb;background:#eeeeee; padding:10px; margin-bottom:10px; margin-top:10px;}
 .fillInput {border:1px solid #cbcbcb; padding-left:5px; background-color:#ffffff; width:693px; height:30px; color:#888888;}
 .mr130 {margin-right:130px;}
-.ur_button_submit{ display:block; width:106px; height:31px; margin:0 auto; background:#15bccf; color:#fff; font-size:16px; text-align:center; padding-top:4px; margin-bottom:10px; }
\ No newline at end of file
+.mr100 {margin-right:100px;}
+.ur_button_submit{ display:block; width:106px; height:31px; margin:0 auto; background:#15bccf; color:#fff; font-size:16px; text-align:center; padding-top:4px; margin-bottom:10px; }
+
+/*20151123课程排行榜Tim*/
+.courseMenuSetting {background:url(../images/homepage_icon2.png) -190px -365px no-repeat; width:15px; height:15px; margin-top:3px; float:right; margin-right:5px;}
+.courseMenuSetting:hover {background:url(../images/homepage_icon2.png) -190px -407px no-repeat;}
+.rankList {width:220px; padding:10px; background-color:#ffffff; margin-top:10px;}
+.rankList li {width:73px; padding:8px 0px 0px 0px; text-align:center; float:left; position:relative;}
+.rankList li p {width:100%; overflow:hidden; white-space:normal; text-overflow:ellipsis; color:#585858;word-wrap: normal; word-break: normal;}
+.rankPortrait {border-radius:50%; width:35px; height:35px;}
+.numIntro {position:absolute; text-align:left; z-index:999; box-shadow:0px 2px 8px rgba(146, 153, 169, 0.5); border:1px solid #eaeaea; background-color:#ffffff; padding:3px 5px; left:15px; color:#585858; white-space: nowrap;}
\ No newline at end of file
diff --git a/public/stylesheets/polls.css b/public/stylesheets/polls.css
index 9f7b2d021..cfc3b1b4a 100644
--- a/public/stylesheets/polls.css
+++ b/public/stylesheets/polls.css
@@ -89,7 +89,7 @@ a:hover.btn_cancel{ color:#666;}
 .ur_question_title{ width:534px; height:30px; border:1px solid #cbcbcb; padding-left:5px; margin-right:10px; background:#fff;}
 .ur_editor_title{ margin-bottom:10px;}
 .ur_editor_content{ }
-.ur_item{ margin-bottom:5px; height:32px; }
+.ur_item{ margin-bottom:5px; height:32px; line-height: 32px; vertical-align: middle; }
 .ur_item input{ width:324px; height:30px;border:1px solid #cbcbcb; padding-left:5px; float:left; margin-right:10px; background:#fff;}
 .ur_item label{ float:left;}
 .icon_add{ background:url(images/icons.png) 0px -310px no-repeat; width:16px; height:27px; display:block;float:left; margin-right:5px;}
diff --git a/public/stylesheets/repository.css b/public/stylesheets/repository.css
index 27941cb9e..2e084d61c 100644
--- a/public/stylesheets/repository.css
+++ b/public/stylesheets/repository.css
@@ -220,7 +220,7 @@
 .vl_branch {background:url(../images/vlicon/branch_icon.png) 0px -2px no-repeat; padding-left:22px}
 .mt1 {margin-top:1px;}
 .mt2 {margin-top:2px;}
-.commit_content_dec{width: 300px;overflow: hidden; white-space: nowrap;text-overflow: ellipsis;}
+.commit_content_dec{width: 200px;overflow: hidden; white-space: nowrap;text-overflow: ellipsis;}
 
 /*提交信息列表*/
 .col-md-10 {
diff --git a/spec/factories/course_contributor_scores.rb b/spec/factories/course_contributor_scores.rb
new file mode 100644
index 000000000..2226a60d2
--- /dev/null
+++ b/spec/factories/course_contributor_scores.rb
@@ -0,0 +1,13 @@
+FactoryGirl.define do
+  factory :course_contributor_score do
+    course_id 1
+user_id 1
+message_num 1
+message_reply_num 1
+news_reply_num 1
+resource_num 1
+journal_num 1
+journal_reply_num 1
+  end
+
+end
diff --git a/spec/models/course_contributor_score_spec.rb b/spec/models/course_contributor_score_spec.rb
new file mode 100644
index 000000000..bc3b3cb52
--- /dev/null
+++ b/spec/models/course_contributor_score_spec.rb
@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe CourseContributorScore, :type => :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end