socialforge/app/controllers/courses_controller.rb

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class CoursesController < ApplicationController
# layout 'base_courses'
include CoursesHelper
include ActivitiesHelper
helper :activities
helper :members
helper :words
helper :attachments
helper :activity_notifys
before_filter :auth_login1, :only => [:show, :course_activity, :feedback]
menu_item :overview
menu_item :feedback, :only => :feedback
menu_item :homework, :only => :homework
menu_item :new_homework, :only => :new_homework
menu_item l(:label_sort_by_time), :only => :index
menu_item l(:label_sort_by_active), :only => :index
menu_item l(:label_sort_by_influence), :only => :index
before_filter :can_show_course, :except => []
before_filter :logged_user_by_apptoken,:only => [:show,:feedback]
before_filter :find_course, :except => [ :index, :search, :new,:join,:unjoin, :create, :new_join, :course,:join_private_courses]
before_filter :authorize_course, :only => [:show, :settings, :update, :course]
before_filter :authorize_course_global, :only => [:new,:create]
before_filter :toggleCourse, :only => [:finishcourse, :restartcourse]
before_filter :is_deleted, :only => [:show, :settings]
before_filter :require_login, :only => [:join, :unjoin]
#before_filter :allow_join, :only => [:join]
#查找组织
def search_public_orgs_not_in_course
condition = '%%'
if !params[:name].nil?
condition = "%#{params[:name].strip}%".gsub(" ","")
end
limit = 15
course_org_ids = OrgCourse.find_by_sql("select distinct organization_id from org_courses where course_id = #{params[:id]}").map(&:organization_id)
if course_org_ids.empty?
@orgs_not_in_course = Organization.where("(is_public or creator_id =?) and name like ?",User.current.id, condition).page((params[:page].to_i || 1)).per(limit)
@org_count = Organization.where("is_public = 1 or creator_id =?", User.current.id).where("name like ?", condition).count
else
course_org_ids = "(" + course_org_ids.join(',') + ")"
@orgs_not_in_course = Organization.where("id not in #{course_org_ids} and (is_public = 1 or creator_id =?) and name like ?", User.current.id, condition).page((params[:page].to_i || 1)).per(limit)
@org_count = Organization.where("id not in #{course_org_ids} and (is_public = 1 or creator_id =?)", User.current.id).where("name like ?", condition).count
end
# @course_count = Project.course_entities.visible.like(params[:name]).page(params[:page]).count
@orgs_page = Paginator.new @org_count, limit,params[:page]
@hint_flag = params[:hint_flag]
#render :json => {:orgs => @orgs_not_in_course, :count => @org_count}.to_json
respond_to do |format|
format.js
end
end
def join
if User.current.logged?
cs = CoursesService.new
@user = User.current
join = cs.join_course params,@user
@state = join[:state]
@course = join[:course]
# else
# @course = Course.find_by_id params[:object_id]
# CourseMessage.create(:user_id => @course.tea_id, :course_id => @course.id, :viewed => false,:content=> params[:role],:course_message_id=>User.current.id,:course_message_type=>'JoinCourseRequest')
# @state = 6
# end
else
@state = 5 #未登录
end
@object_id = params[:object_id]
respond_to do |format|
format.js #{ render :partial => 'set_join', :locals => {:user => @user, :course => @course, :object_id => params[:object_id]} }
end
end
def unjoin
if User.current.logged?
cs = CoursesService.new
cs.exit_course params,User.current
end
respond_to do |format|
format.js { render :partial => 'set_join', :locals => {:user => User.current, :course => Course.find(params[:object_id]), :object_id => params[:object_id]} }
end
end
def join_private_courses
respond_to do |format|
format.js
end
end
#更新课程信息
def update
cs = CoursesService.new
c = cs.edit_course params,@course,User.current
@course = c[:course]
if @course.errors.full_messages.count <= 0
respond_to do |format|
format.html {
# render :layout => 'base_courses'
flash[:notice] = l(:notice_successful_update)
redirect_to settings_course_url(@course)
}
format.api { render_api_ok }
end
else
respond_to do |format|
format.html {
settings
redirect_to settings_course_url(@course)
}
format.api { render_validation_errors(@course) }
end
end
end
def new_join
@course = Course.find(params[:object_id])
respond_to do |format|
format.js
end
end
# 课程搜索
# add by nwb
def search
if params[:name].empty?
courses = Course.visible
@courses = paginateHelper courses,10
else
courses = Course.visible.where("LOWER(name) like '%#{params[:name].to_s.downcase}%'").order("time desc, created_at desc")
@courses = paginateHelper courses,10
end
@name = params[:name]
@type = 'courses'
respond_to do |format|
format.html {
render :layout => 'course_base'
}
format.atom {
courses = Course.visible.order('created_on DESC').limit(Setting.feeds_limit.to_i).all
render_feed(courses, :title => "#{Setting.app_title}: #{l(:label_course_latest)}")
}
end
rescue Exception => e
if e.message == 'sumbit empty'
(redirect_to courses_url, :notice => l(:label_sumbit_empty);return)
end
end
def searchmembers
@subPage_title = l :label_student_list
@canShowCode = User.current.allowed_to?(:as_teacher,@course) && params[:role] != '1'
# @is_remote = true
@score_sort_by = "desc"
q = "#{params[:name].strip}"
if params[:incourse]
results = searchmember_by_name(student_homework_score(0,0,0,"desc"), q)
elsif params[:ingroup]
@group = CourseGroup.find(params[:search_group_id])
results = searchmember_by_name(student_homework_score(@group.id,0,0,"desc"), q)
end
@is_remote = true
#@result_count = results.count
#@results = paginateHelper results, 10
@results = results
@search_name = q
end
def addgroups
@subPage_title = l :label_student_list
if params[:group_name]
group = CourseGroup.new
group.name = params[:group_name]
group.course_id = @course.id
group.save
end
@canShowCode = User.current.allowed_to?(:as_teacher,@course) && params[:role] != '1'
@is_remote = true
@course_groups = @course.course_groups
end
def deletegroup
CourseGroup.delete(params[:group_id])
@subPage_title = l :label_student_list
@canShowCode = isCourseTeacher(User.current.id,@course) && params[:role] != '1'
@is_remote = true
@course_groups = @course.course_groups
end
def updategroupname
@subPage_title = l :label_student_list
if params[:group_name]
group = CourseGroup.find(params[:group_id])
group.name = params[:group_name]
group.save
end
@canShowCode = isCourseTeacher(User.current.id,@course) && params[:role] != '1'
@is_remote = true
@course_groups = @course.course_groups
end
def valid_ajax
req = Hash.new(false)
req[:message] = ''
valid_attr = params[:valid]
valid_value = params[:value]
group_id = params[:group_id]
# faker = CourseGroup.new
if valid_attr.eql?('name')
course = Course.find params[:course_id]
group_names = course.course_groups.map{|group| group.name unless group.id.to_s == group_id}.select{|group| !group.nil?}
if group_names.include?(valid_value)
req[:valid] = false
req[:message] = l(:modal_valid_unpassing)
else
req[:valid] = true
req[:message] = l(:modal_valid_passing)
end
# faker.name = valid_value
# faker.course_id = params[:course_id]
# faker.valid?
# req[:valid] = faker.errors[:name].blank?
# req[:message] = faker.errors[:name]
end
# req[:message] = l(:modal_valid_passing) if req[:message].blank?
render :json => req
end
def join_group
@subPage_title = l :label_student_list
group = CourseGroup.find(params[:object_id])
member = Member.where(:course_id => @course.id, :user_id => User.current.id).first
member.course_group_id = group.id
member.save
@group = group
@course_groups = @course.course_groups
search_group_members group
end
def unjoin_group
@subPage_title = l :label_student_list
group = CourseGroup.find(params[:object_id])
member = Member.where(:course_id => @course.id, :user_id => User.current.id).first
member.course_group_id = 0
member.save
@group = group
@course_groups = @course.course_groups
search_group_members group
end
def searchgroupmembers
@subPage_title = l :label_student_list
@render_file = 'new_member_list'
@canShowCode = isCourseTeacher(User.current.id,@course) && params[:role] != '1'
@is_remote = true
@score_sort_by = "desc"
if params[:group_id] && params[:group_id] != "0"
@group = CourseGroup.find(params[:group_id])
@results = student_homework_score(@group.id,0, 0,"desc")
# @results = paginateHelper @results, 10
else
page_from = params[:page].nil? ? 0 : (params[:page].to_i - 1)
@results = student_homework_score(0,page_from, 10,"desc")
end
end
def member
## 有角色参数的才是课程,没有的就是项目
if (User.current.admin? || @course.is_public == 1 || (@course.is_public == 0 && User.current.member_of_course?(@course)))
@render_file = 'new_member_list'
@score_sort_by = "desc"
@canShowCode = User.current.allowed_to?(:as_teacher,@course) && params[:role] != '1'
@role = params[:role].nil? ? '2':params[:role]
@is_remote = true
@course_groups = @course.course_groups if @course.course_groups
@show_serch = params[:role] == '2'
case @role
when '1'
@subPage_title = l :label_teacher_list
@all_members = searchTeacherAndAssistant(@course)
@members = @all_members
when '2'
if @course.open_student == 1 || User.current.member_of_course?(@course)
@subPage_title = l :label_student_list
page = params[:page].nil? ? 0 : (params['page'].to_i - 1)
@all_members = student_homework_score(0,page, 10,"desc")
@members = @all_members
else
render_403
return
end
end
respond_to do |format|
if params[:page]
format.html {render :layout => 'base_courses'}
format.js
else
format.html {render :layout => 'base_courses'}
end
end
else
render_403
end
end
def export_course_member_excel
@all_members = student_homework_score(0,0,0,"desc")
filename="#{@course.teacher.lastname.to_s + @course.teacher.firstname.to_s }_#{@course.name}_#{@course.time.to_s + @course.term}#{l(:excel_member_list)}";
respond_to do |format|
format.xls {
send_data(member_to_xls(@all_members,@course.course_groups), :type => "text/excel;charset=utf-8; header=present",
:filename => filename_for_content_disposition("#{filename}.xls"))
}
end
end
def member_score_sort
@canShowCode = isCourseTeacher(User.current.id,@course) && params[:role] != '1'
@subPage_title = l :label_student_list
@render_file = 'new_member_list'
@is_remote = true
@score_sort_by = params[:sort_by] if params[:sort_by]
@search_name = params[:search_name] if params[:search_name]
group_id = params[:group_id]
if !@search_name.nil?
if group_id == '0'
page = params[:page].nil? ? 0 : (params['page'].to_i - 1)
@results = searchmember_by_name(student_homework_score(0,0,0,@score_sort_by), @search_name)
@result_count = @results.count
# @results = paginateHelper @results, 10
else
@group = CourseGroup.find(group_id)
@results = searchmember_by_name(student_homework_score(group_id, 0, 0,@score_sort_by),@search_name)
@result_count = @results.count
# @results = paginateHelper @results, 10
end
else
if group_id == '0'
page = params[:page].nil? ? 0 : (params['page'].to_i - 1)
@results = student_homework_score(0,page, 10,@score_sort_by)
else
@group = CourseGroup.find(group_id)
@results = student_homework_score(group_id, 0, 0,@score_sort_by)
end
end
end
# 显示每个学生的作业评分详情
def show_member_score
@member_score = Member.find(params[:member_id]) if params[:member_id]
respond_to do |format|
format.html {render :layout => 'course_base'}
format.js
end
end
def handle_course courses, activities
course_activity_count_array=activities.values()
course_array=[]
i=0;
courses.each do |course|
course_array[i]=course
i=i+1
end
courses=desc_sort_course_by_avtivity(course_activity_count_array, course_array)
return courses
end
def settings
if User.current.allowed_to?(:as_teacher,@course)
@select_tab = params[:tab]
@issue_custom_fields = IssueCustomField.sorted.all
@issue_category ||= IssueCategory.new
@member ||= @course.members.new
@trackers = Tracker.sorted.all
@roles = Role.givable.all[3..5]
@members = @course.member_principals.includes(:roles, :principal).all.sort
respond_to do |format|
format.html { render :layout => 'base_courses' }
format.api { render_validation_errors(@course) }
end
else
render_403
end
end
def private_or_public
if @course.is_public == 0
@course.update_attributes(:is_public => 1)
else
@course.update_attributes(:is_public => 0)
end
if @course.is_public == 0
course_status = CourseStatus.find_by_course_id(@course.id)
course_status.destroy if course_status
elsif @course.is_public == 1
course_status = CourseStatus.find_by_course_id(@course.id)
course_status.destroy if course_status
course_status = CourseStatus.create(:course_id => @course.id, :grade => 0)
end
respond_to do |format|
format.js
end
end
def search_member
if User.current.allowed_to?(:as_teacher,@course) || User.current.admin
q = "#{params[:name].strip}"
@roles = Role.givable.all[3..5]
if q.nil? || q == ""
@members = @course.member_principals.includes(:roles, :principal).all.sort
else
@members = searchmember_by_name(@course.member_principals.includes(:roles, :principal).all.sort,q)
end
else
render_403
end
end
def create
cs = CoursesService.new
@course = cs.create_course(params,User.current)[:course]
if @course
respond_to do |format|
flash[:notice] = l(:notice_successful_create)
format.html {redirect_to settings_course_url(@course, :course_type => 1)}
format.api { render :action => 'show', :status => :created, :location => url_for(:controller => 'courses', :action => 'show', :id => @course.id) }
end
else
respond_to do |format|
flash[:notice] = l(:notice_create_failed)
# @course = Course.new
format.html { redirect_to new_course_path } #Added by young
format.api { render_validation_errors(@course) }
end
end
end
def course
@school_id = params[:school_id]
per_page_option = 10
if @school_id == "0" or @school_id.nil?
@courses_all = Course.active.visible.
joins("LEFT JOIN #{CourseStatus.table_name} ON #{Course.table_name}.id = #{CourseStatus.table_name}.course_id")
else
@courses_all = Course.active.visible.
joins("LEFT JOIN #{CourseStatus.table_name} ON #{Course.table_name}.id = #{CourseStatus.table_name}.course_id").
joins(:course_extra).
where("#{Course.table_name}.school_id = ?", @school_id)
end
@course_count = @courses_all.count
@course_pages = Paginator.new @course_count, per_page_option, params['page']
@course_activity_count=Hash.new
@courses_all.each do |course|
@course_activity_count[course.id]=0
end
case params[:course_sort_type]
when '0'
@courses = @courses_all.order("created_on desc")
@s_type = 0
@courses = @courses.offset(@course_pages.offset).limit(@course_pages.per_page)
@course_activity_count=get_course_activity @courses,@course_activity_count
when '1'
@courses = @courses_all.order("course_ac_para desc")
@s_type = 1
@courses = @courses.offset(@course_pages.offset).limit(@course_pages.per_page)
@course_activity_count=get_course_activity @courses,@course_activity_count
when '2'
@courses = @courses_all.order("watchers_count desc")
@s_type = 2
@courses = @courses.offset(@course_pages.offset).limit(@course_pages.per_page)
@course_activity_count=get_course_activity @courses,@course_activity_count
when '3'
@course_activity_count=get_course_activity @courses_all,@course_activity_count
@courses=handle_course @courses_all,@course_activity_count
@s_type = 3
@courses = @courses[@course_pages.offset, @course_pages.per_page]
else
@s_type = 0
@courses = @courses_all.order("created_on desc")
@courses = @courses.offset(@course_pages.offset).limit(@course_pages.per_page)
@course_activity_count=get_course_activity @courses,@course_activity_count
end
respond_to do |format|
format.html {
render :layout => 'new_base'
}
format.api {
}
format.atom {
courses = Course.visible.order('created_on DESC').limit(Setting.feeds_limit.to_i).all
render_feed(courses, :title => "#{Setting.app_title}: #{l(:label_course_latest)}")
}
end
end
def new
if User.current.login?
@course_type = params[:course_type] ||= params[:course]
@issue_custom_fields = IssueCustomField.sorted.all
@trackers = Tracker.sorted.all
@course = Course.new
@course.safe_attributes = params[:course]
# month = Time.now.month
render :layout => 'new_base'
else
redirect_to signin_url
end
end
def desc_sort_course_by_avtivity(activity_count, courses)
return courses if activity_count.size<2
(activity_count.size-2).downto(0) do |i|
(0..i).each do |j|
if activity_count[j]<activity_count[j+1]
courses[j], courses[j+1]=courses[j+1], courses[j]
activity_count[j], activity_count[j+1]=activity_count[j+1], activity_count[j]
end
end
end
return courses
end
def index
if !User.current.admin?
render_404
return
end
@course_type = params[:course_type]
@school_id = params[:school_id]
per_page_option = 10
if @school_id == "0" || @school_id.nil?
@courses_all = Course.active.visible.
joins("LEFT JOIN #{CourseStatus.table_name} ON #{Course.table_name}.id = #{CourseStatus.table_name}.course_id")
else
@courses_all = Course.active.visible.
joins("LEFT JOIN #{CourseStatus.table_name} ON #{Course.table_name}.id = #{CourseStatus.table_name}.course_id").
where("#{Course.table_name}.school_id = ?", @school_id)
end
@course_count = @courses_all.count
@course_pages = Paginator.new @course_count, per_page_option, params['page']
@course_activity_count=Hash.new
@courses_all.each do |course|
@course_activity_count[course.id]=0
end
case params[:course_sort_type]
when '0'
@courses = @courses_all.order("created_at desc")
@s_type = 0
@courses = @courses.offset(@course_pages.offset).limit(@course_pages.per_page)
@course_activity_count=get_course_activity @courses, @course_activity_count
when '1'
@courses = @courses_all.order("course_ac_para desc")
@s_type = 1
@courses = @courses.offset(@course_pages.offset).limit(@course_pages.per_page)
@course_activity_count=get_course_activity @courses, @course_activity_count
when '2'
@courses = @courses_all.order("watchers_count desc")
@s_type = 2
@courses = @courses.offset(@course_pages.offset).limit(@course_pages.per_page)
@course_activity_count=get_course_activity @courses, @course_activity_count
when '3'
@course_activity_count=get_course_activity @courses_all, @course_activity_count
@courses=handle_course @courses_all, @course_activity_count
@s_type = 3
@courses = @courses[@course_pages.offset, @course_pages.per_page]
else
@s_type = 0
@courses = @courses_all.order("created_at desc")
@courses = @courses.offset(@course_pages.offset).limit(@course_pages.per_page)
@course_activity_count=get_course_activity @courses, @course_activity_count
end
respond_to do |format|
format.html {
render :layout => 'base'
}
format.atom {
courses = Course.visible.order('created_on DESC').limit(Setting.feeds_limit.to_i).all
render_feed(courses, :title => "#{Setting.app_title}: #{l(:label_course_latest)}")
}
end
end
def toggleCourse
@course_prefs = Course.find_by_extra(@course.extra)
unless (User.current.allowed_to?(:as_teacher,@course_prefs) || User.current.admin?)
render_403
end
end
def is_deleted
if @course.is_delete == 1 and !User.current.admin?
render_404
return
end
end
def get_courses
@user = User.current
membership = @user.coursememberships.all
membership.sort! {|older, newer| newer.created_on <=> older.created_on }
@memberships = []
membership.collect { |e|
@memberships.push(e)
}
@memberships_doing = []
@memberships_done = []
now_time = Time.now.year
@memberships.map { |e|
end_time = e.course.get_time.year
isDone = course_endTime_timeout?(e.course)
if isDone
@memberships_done.push e
else
@memberships_doing.push e
end
}
end
def finishcourse
yesterday = Date.today.prev_day.to_time
@course_prefs.endup_time = yesterday
@save_flag = @course_prefs.save
get_courses
respond_to do |format|
format.js
end
end
def restartcourse
day = Time.parse("3000-01-01")
@course_prefs.endup_time = day
@save_flag = @course_prefs.save
get_courses
respond_to do |format|
format.js {
render action:'finishcourse'
}
end
end
def course_activity
redirect_to course_url(@course, type: params[:type], page: params[:page])
end
def show
# 被删除的课程只有超级管理员才能看到is_delete为1的时候标记课程被删除
# if @course.is_delete == 1 && !User.current.admin?
# render_403
# return
# end
#更新创建课程消息状态
create_course_messages = @course.course_messages.where("user_id =? and course_message_type =? and course_id =? and viewed =?", User.current.id, 'Course', @course.id, 0)
create_course_messages.update_all(:viewed => true)
#更新申请结果反馈消息的状态
course_request_messages = CourseMessage.where("user_id =? and course_id =? and course_message_type =? and viewed =?", User.current.id, @course.id, 'CourseRequestDealResult', false)
course_request_messages.update_all(:viewed => true)
course_activities = @course.course_activities
@canShowRealName = User.current.member_of_course? @course
@page = params[:page] ? params[:page].to_i + 1 : 0
if params[:type].present?
case params[:type]
when "homework"
@course_activities = course_activities.where("course_act_type = 'HomeworkCommon'").order('updated_at desc').limit(10).offset(@page * 10)
when "news"
@course_activities = course_activities.where("course_act_type = 'News'").order('updated_at desc').limit(10).offset(@page * 10)
when "message"
@course_activities = course_activities.where("course_act_type = 'Message'").order('updated_at desc').limit(10).offset(@page * 10)
when "poll"
@course_activities = course_activities.where("course_act_type = 'Poll'").order('updated_at desc').limit(10).offset(@page * 10)
when "attachment"
@course_activities = course_activities.where("course_act_type = 'Attachment'").order('updated_at desc').limit(10).offset(@page * 10)
when "journalsForMessage"
@course_activities = course_activities.where("course_act_type = 'JournalsForMessage'").order('updated_at desc').limit(10).offset(@page * 10)
else
@course_activities = course_activities.order('updated_at desc').limit(10).offset(@page * 10)
end
else
@course_activities = course_activities.order('updated_at desc').limit(10).offset(@page * 10)
end
@type = params[:type]
respond_to do |format|
format.js
format.html{render :layout => 'base_courses'}
format.api
end
end
#判断指定用户是否为课程教师
def isCourseTeacher(id,course)
result = false
user = User.find(id)
if !user.nil? && user.allowed_to?(:as_teacher,course)
result = true
end
result
end
def feedback
@course.journals_for_messages.each do |messages|
query = messages.course_messages.where("user_id = ?", User.current.id)
query.update_all(:viewed => true);
end
if (User.current.admin? || @course.is_public == 1 || (@course.is_public == 0 && User.current.member_of_course?(@course)))
page = params[:page]
# Find the page of the requested reply
@jours = @course.journals_for_messages.where('m_parent_id IS NULL').order('created_on DESC')
@limit = 10
if params[:r] && page.nil?
offset = @jours.count(:conditions => ["#{JournalsForMessage.table_name}.id > ?", params[:r].to_i])
page = 1 + offset / @limit
end
@jour = paginateHelper @jours,10
@state = false
respond_to do |format|
format.html{render :layout => 'base_courses'}
format.api
end
else
render_403
end
end
#根据已有课程复制课程
#param id:已有课程ID
def copy_course
if @course
@new_course = Course.new @course.attributes
@new_course.tea_id = User.current.id
@new_course.created_at = DateTime.now
@new_course.updated_at = DateTime.now
@new_course.endup_time = nil
if @new_course.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])
m.project_id = -1
course = CourseInfos.new(:user_id => User.current.id, :course_id => @new_course.id)
#user_grades = UserGrade.create(:user_id => User.current.id, :course_id => @course.id)
if @new_course.is_public == 1
course_status = CourseStatus.create(:course_id => @new_course.id, :watchers_count => 0, :changesets_count => 0, :grade => 0, :course_type => 1)
end
@new_course.members << m
@new_course.course_infos << course
redirect_to settings_course_url @new_course
end
else
render_404
end
end
#从课程创建的老师那里选择课程大纲
def course_outline
@teacher = User.find(@course.tea_id)
@blog_articles = @teacher.blog.articles
@is_in_show_outline_page = params[:is_in_show_outline_page]
respond_to do |format|
format.js
end
end
#根据关键字搜索,查找方法一样的,但返回内容不一样
def search_course_outline
@article_title = params[:title]
@teacher = User.find(@course.tea_id)
@blog_articles = @teacher.blog.articles.like(@article_title)
render :json=>@blog_articles.to_json
end
#设置或者更改课程的大纲
def set_course_outline
@course.outline = params[:outline_id]
@course.save
@is_in_show_outline_page = params[:is_in_show_outline_page]
respond_to do |format|
format.js
end
end
#显示课程大纲
def syllabus
@article = BlogComment.find(@course.outline)
respond_to do |format|
format.html {render :layout => 'base_courses'}
end
end
#删除课程
#删除课程只是将课程的is_deleted状态改为falseis_deleted为false状态的课程只有管理员可以看到
def destroy
@course.update_attributes(:is_delete => true)
@course = nil
redirect_to user_url(User.current)
end
# 恢复已删除的课程
def renew
if User.current.admin?
@course.update_attributes(:is_delete => false)
redirect_to course_path(@course)
else
return 404
end
end
private
def allow_join course
if course_endTime_timeout? course
respond_to do |format|
format.js {
@state = 2
render :partial => 'set_join',
:locals => {:user => User.current,
:course => Course.find(params[:object_id]),
:object_id => params[:object_id]
}
}
end
end
end
#验证是否显示课程
def can_show_course
@first_page = FirstPage.find_by_page_type('project')
if @first_page.try(:show_course) == 2
render_404
end
end
def student_homework_score(groupid,start_from, nums, score_sort_by)
start_from = start_from * nums
sql_select = ""
if groupid == 0
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}"
else
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} AND members.course_group_id = #{groupid} ORDER BY score #{score_sort_by}"
end
sql = ActiveRecord::Base.connection()
homework_scores = Member.find_by_sql(sql_select)
sql.close()
homework_scores
end
#获取课程的老师列表
def find_course_teachers course
searchTeacherAndAssistant(course).map{|teacher| teacher.user_id}.join(",")
end
#当加入,退出分班时查询分班的学生
def search_group_members group
@subPage_title = l :label_student_list
@render_file = 'new_member_list'
@canShowCode = isCourseTeacher(User.current.id,@course) && params[:role] != '1'
@is_remote = true
@score_sort_by = "desc"
page_from = params[:page].nil? ? 0 : (params[:page].to_i - 1)
@results = student_homework_score(group.id,0,0, "desc")
end
def member_to_xls members,groups
xls_report = StringIO.new
book = Spreadsheet::Workbook.new
sheet1 = book.create_worksheet :name => "student"
blue = Spreadsheet::Format.new :color => :blue, :weight => :bold, :size => 10
sheet1.row(0).default_format = blue
sheet1.row(0).concat([l(:excel_user_id),l(:excel_user_name),l(:excel_nickname),l(:excel_student_id),l(:excel_mail),l(:excel_homework_score)])
count_row = 1
group0 = CourseGroup.new();
group0.id = 0;
group0.name = l(:excel_member_with_out_class)
groups_dup = groups.dup
groups_dup << group0
groups_dup.each do |group|
sheet1[count_row,0] = l(:excel_class)
sheet1[count_row,1] = group.name
count_row += 1
members.each do |member|
if member.course_group_id == group.id
sheet1[count_row,0]= member.user.id
sheet1[count_row,1] = member.user.lastname.to_s + member.user.firstname.to_s
sheet1[count_row,2] = member.user.login
sheet1[count_row,3] = member.user.user_extensions.student_id
sheet1[count_row,4] = member.user.mail
sheet1[count_row,5] = format("%0.2f",member.score.nil? ? 0:member.score.to_s)
count_row += 1
end
end
end
book.write xls_report
xls_report.string
end
end