diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index 3ebd3369..12f730e0 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -52,11 +52,40 @@ class CoursesController < ApplicationController
     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 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
     @course_type = params[:course_type]
     @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")
@@ -84,7 +113,7 @@ class CoursesController < ApplicationController
 
     case params[:course_sort_type]
       when '0'
-        @courses =  @courses_all.order("created_on desc")
+        @courses =  @courses_all.order("created_at desc")
         @s_type = 0
         @courses =  @courses.offset(@course_pages.offset).limit(@course_pages.per_page)
 
@@ -122,7 +151,7 @@ class CoursesController < ApplicationController
         @courses =  @courses[@course_pages.offset, @course_pages.per_page]
       else
         @s_type = 0
-        @courses = @courses_all.order("created_on desc")
+        @courses = @courses_all.order("created_at desc")
         @courses =  @courses.offset(@course_pages.offset).limit(@course_pages.per_page)
 
         #gcm
@@ -142,6 +171,7 @@ class CoursesController < ApplicationController
     end
   end
 
+
   def get_course_activity courses,activities
     @course_ids=activities.keys()
 
@@ -160,11 +190,6 @@ class CoursesController < ApplicationController
       activities[board.course_id]+=board.messages.where("updated_on>?",date_from).count
     end
 
-    #time_entry_count
-    TimeEntry.where(course_id: @course_ids).where("updated_on>?",date_from).each do |timeentry|
-      activities[timeentry.course_id]+=1
-    end
-
     #feedbackc_count
     JournalsForMessage.where(jour_id: @course_ids, jour_type: Project).each do |jourformess|
       activities[jourformess.jour_id]+=1
diff --git a/app/helpers/courses_helper.rb b/app/helpers/courses_helper.rb
index 6a348a1e..4c27af48 100644
--- a/app/helpers/courses_helper.rb
+++ b/app/helpers/courses_helper.rb
@@ -126,29 +126,25 @@ module CoursesHelper
     content = ''.html_safe
     case state
       when 0
-        content << content_tag('li', link_to(l(:label_sort_by_time), course_path(:course_sort_type => '0'), :school_id => school_id, :class=>"selected"), :class=>"selected")
-        content << content_tag('li', link_to(l(:label_sort_by_active), course_path(:course_sort_type => '1', :school_id => school_id)))
-        # content << content_tag('li', link_to(l(:label_sort_by_influence), course_path(:course_sort_type => '2')))
-        content << content_tag('li', link_to(l(:label_sort_by_activity), course_path(:course_sort_type => '3', :school_id => school_id)))
+        content << content_tag('li', link_to(l(:label_sort_by_time), courses_path(:course_sort_type => '0'), :school_id => school_id, :class=>"selected"), :class=>"selected")
+        content << content_tag('li', link_to(l(:label_sort_by_active), courses_path(:course_sort_type => '1', :school_id => school_id)))
+        content << content_tag('li', link_to(l(:label_sort_by_activity), courses_path(:course_sort_type => '3', :school_id => school_id)))
 
       when 1
-        content << content_tag('li', link_to(l(:label_sort_by_time), course_path(:course_sort_type => '0', :school_id => school_id)))
-        content << content_tag('li', link_to(l(:label_sort_by_active), course_path(:course_sort_type => '1', :school_id => school_id), :class=>"selected"), :class=>"selected")
-        # content << content_tag('li', link_to(l(:label_sort_by_influence), course_path(:course_sort_type => '2')))
-        content << content_tag('li', link_to(l(:label_sort_by_activity), course_path(:course_sort_type => '3', :school_id => school_id)))
+        content << content_tag('li', link_to(l(:label_sort_by_time), courses_path(:course_sort_type => '0', :school_id => school_id)))
+        content << content_tag('li', link_to(l(:label_sort_by_active), courses_path(:course_sort_type => '1', :school_id => school_id), :class=>"selected"), :class=>"selected")
+        content << content_tag('li', link_to(l(:label_sort_by_activity), courses_path(:course_sort_type => '3', :school_id => school_id)))
 
       when 2
-        content << content_tag('li', link_to(l(:label_sort_by_time), course_path(:course_sort_type => '0', :school_id => school_id)))
-        content << content_tag('li', link_to(l(:label_sort_by_active), course_path(:course_sort_type => '1', :school_id => school_id)))
-        # content << content_tag('li', link_to(l(:label_sort_by_influence), course_path(:course_sort_type => '2'), :class=>"selected"), :class=>"selected")
-        content << content_tag('li', link_to(l(:label_sort_by_activity), course_path(:course_sort_type => '3', :school_id => school_id)))
+        content << content_tag('li', link_to(l(:label_sort_by_time), courses_path(:course_sort_type => '0', :school_id => school_id)))
+        content << content_tag('li', link_to(l(:label_sort_by_active), courses_path(:course_sort_type => '1', :school_id => school_id)))
+        content << content_tag('li', link_to(l(:label_sort_by_activity), courses_path(:course_sort_type => '3', :school_id => school_id)))
 
       #gcm
       when 3
-        content << content_tag('li', link_to(l(:label_sort_by_time), course_path(:course_sort_type => '0', :school_id => school_id)))
-        content << content_tag('li', link_to(l(:label_sort_by_active), course_path(:course_sort_type => '1', :school_id => school_id)))
-        # content << content_tag('li', link_to(l(:label_sort_by_influence), course_path(:course_sort_type => '2')))
-        content << content_tag('li', link_to(l(:label_sort_by_activity), course_path(:course_sort_type => '3', :school_id => school_id), :class=>"selected"), :class=>"selected")
+        content << content_tag('li', link_to(l(:label_sort_by_time), courses_path(:course_sort_type => '0', :school_id => school_id)))
+        content << content_tag('li', link_to(l(:label_sort_by_active), courses_path(:course_sort_type => '1', :school_id => school_id)))
+        content << content_tag('li', link_to(l(:label_sort_by_activity), courses_path(:course_sort_type => '3', :school_id => school_id), :class=>"selected"), :class=>"selected")
     end
     #gcmend
 
diff --git a/app/models/course.rb b/app/models/course.rb
index 0c5abd5c..0df09dd3 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -78,16 +78,15 @@ class Course < ActiveRecord::Base
   end
 
   def self.allowed_to_condition(user, permission, options={})
-    perm = Redmine::AccessControl.permission(permission)
+     perm = Redmine::AccessControl.permission(permission)
     base_statement = (perm && perm.read? ? "#{Course.table_name}.status <> #{Course::STATUS_ARCHIVED}" : "#{Course.table_name}.status = #{Course::STATUS_ACTIVE}")
-    if perm && perm.project_module
-      # If the permission belongs to a project module, make sure the module is enabled
+    if perm && perm.course_module
       base_statement << " AND #{Course.table_name}.id IN (SELECT em.project_id FROM #{EnabledModule.table_name} em WHERE em.name='#{perm.project_module}')"
     end
-    if options[:project]
-      project_statement = "#{Course.table_name}.id = #{options[:project].id}"
-      project_statement << " OR (#{Course.table_name}.lft > #{options[:project].lft} AND #{Course.table_name}.rgt < #{options[:project].rgt})" if options[:with_subprojects]
-      base_statement = "(#{project_statement}) AND (#{base_statement})"
+    if options[:course]
+      course_statement = "#{Course.table_name}.id = #{options[:course].id}"
+      course_statement << " OR (#{Course.table_name}.lft > #{options[:course].lft} AND #{Course.table_name}.rgt < #{options[:course].rgt})" if options[:with_subcourses]
+      base_statement = "(#{course_statement}) AND (#{base_statement})"
     end
 
     if user.admin?
@@ -101,9 +100,9 @@ class Course < ActiveRecord::Base
         end
       end
       if user.logged?
-        user.projects_by_role.each do |role, projects|
-          if role.allowed_to?(permission) && projects.any?
-            statement_by_role[role] = "#{Course.table_name}.id IN (#{projects.collect(&:id).join(',')})"
+        user.courses_by_role.each do |role, courses|
+          if role.allowed_to?(permission) && courses.any?
+            statement_by_role[role] = "#{Course.table_name}.id IN (#{courses.collect(&:id).join(',')})"
           end
         end
       end
diff --git a/db/migrate/20140603081801_add_courseid_to_enabled_modules.rb b/db/migrate/20140603081801_add_courseid_to_enabled_modules.rb
new file mode 100644
index 00000000..cefc3825
--- /dev/null
+++ b/db/migrate/20140603081801_add_courseid_to_enabled_modules.rb
@@ -0,0 +1,13 @@
+class AddCourseidToEnabledModules < ActiveRecord::Migration
+  def change
+    add_column :enabled_modules, :course_id, :int
+
+    EnabledModule.all.each do |enablemodule|
+      project = Project.find_by_id(enablemodule.project_id)
+      if project && project.project_type == 1
+        enablemodule.course_id = board.project_id
+        enablemodule.save
+      end
+    end
+  end
+end
diff --git a/lib/redmine.rb b/lib/redmine.rb
index f5386029..7703b2b2 100644
--- a/lib/redmine.rb
+++ b/lib/redmine.rb
@@ -180,7 +180,8 @@ Redmine::AccessControl.map do |map|
 
   #课程权限模块
   map.project_module :course do
-    map.permission :view_courses,{:projects => [:course]},:read => true
+    map.permission :view_course, {:courses => [:show], :activities => [:index]}, :public => true, :read => true
+    map.permission :view_courses,{:courses => [:course]},:read => true
   end
 
   #作业模块权限