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, :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 :require_login, :only => [:join, :unjoin]
#before_filter :allow_join, :only => [:join]
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
@state = 5 #未登录
end
respond_to do |format|
format.js { render :partial => 'set_join', :locals => {:user => user, :course => course, :object_id => params[:object_id]} }
end
rescue Exception => e
@state = 4 #已经加入了课程
respond_to do |format|
format.js { render :partial => 'set_join', :locals => {:user => User.current, :course => nil, :object_id => nil} }
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
courses_all = Course.all_course
name = params[:name]
if name.blank?
@courses = []
@courses_all = []
@course_count = 0
@course_pages = Paginator.new @course_count, per_page_option, params['page']
else
@courses = courses_all.visible
if params[:name].present?
@courses_all = @courses.like(params[:name])
else
@courses_all = @courses;
end
@course_count = @courses_all.count
@course_pages = Paginator.new @course_count, per_page_option, params['page']
# 课程的动态数
@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_array
@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
end
respond_to do |format|
format.html {
render :layout => 'course_base'
scope = Course
unless params[:closed]
scope = scope.active
end
}
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'
@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
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)}";
# 如果是ie 需要转码
if(/trident/.match(request.env["HTTP_USER_AGENT"]) != nil)
filename= URI::encode(filename)
end
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}.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)
@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 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
@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'
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 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 show
if params[:jump] && redirect_to_course_menu_item(@course, params[:jump])
return
end
@users_by_role = @course.users_by_role
if(User.find_by_id(CourseInfos.find_by_course_id(@course.id).try(:user_id)))
@user = User.find_by_id(CourseInfos.find_by_course_id(@course.id).user_id)
end
@key = User.current.rss_key
#新增内容
@days = Setting.activity_days_default.to_i
if params[:from]
begin; @date_to = params[:from].to_date + 1; rescue; end
end
has = {
"show_course_files" => true,
"show_course_news" => true,
"show_course_messages" => true,
#"show_course_journals_for_messages" => true,
# "show_bids" => true,
# "show_homeworks" => true,
"show_polls" => true
}
@date_to ||= Date.today + 1
@date_from = (@date_to - @days) > @course.created_at.to_date ? (@date_to - @days) : @course.created_at.to_date
@author = (params[:user_id].blank? ? nil : User.active.find(params[:user_id]))
if @author.nil?
# 显示老师和助教的活动
# @authors = searchTeacherAndAssistant(@course)
@authors = course_all_member(@course)
events = []
key = "course_events_#{@course.id}".to_sym
if Rails.env.production? && Setting.course_cahce_enabled?
events = Rails.cache.read(key) || []
end
if events.empty?
@authors.each do |author|
@activity = Redmine::Activity::Fetcher.new(User.current, :course => @course,
:with_subprojects => false,
:author => author.user)
@activity.scope_select {|t| has["show_#{t}"]}
# modify by nwb
# 添加私密性判断
if User.current.member_of_course?(@course)|| User.current.admin?
events += @activity.events(@days, @course.created_at)
else
events += @activity.events(@days, @course.created_at, :is_public => 1)
end
end
Rails.cache.write(key, events) if Rails.env.production? && Setting.course_cahce_enabled?
end
else
# @author = @course.teacher
@activity = Redmine::Activity::Fetcher.new(User.current, :course => @course,
:with_subprojects => false,
:author => @author)
@activity.scope_select {|t| has["show_#{t}"]}
# modify by nwb
# 添加私密性判断
if User.current.member_of_course?(@course)|| User.current.admin?
events = @activity.events(@days, @course.created_at)
else
events = @activity.events(@days, @course.created_at, :is_public => 1)
end
end
# 无新动态时,显示老动态
if events.count == 0
if User.current.member_of_course?(@course)|| User.current.admin?
events = @activity.events
else
events = @activity.events(:is_public => 1)
end
end
@sort_by = %w(category date title author).include?(params[:sort_by]) ? params[:sort_by] : 'category'
if(User.find_by_id(CourseInfos.find_by_course_id(@course.id).try(:user_id)))
@user = User.find_by_id(CourseInfos.find_by_course_id(@course.id).user_id)
end
sorted_events = sort_activity_events_course(events)
events = paginateHelper sorted_events,10
@events_by_day = events.group_by {|event| User.current.time_to_date(event.event_datetime)}
# documents
respond_to do |format|
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
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
#删除课程
#删除课程只是将课程的is_delete状态改为falseis_delete为false状态的课程只有管理员可以看到
def destroy
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