diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index 3f771bf77..0c09fc1bd 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -185,6 +185,109 @@ class ProjectsController < ApplicationController
 
     @project_count = @projects_all.count
     @project_pages = Paginator.new @project_count, per_page_option, params['page']
+    
+#gcm activity count
+
+    @project_activity_count=Hash.new
+
+    @projects_all.each do |project|
+      @project_activity_count[project.id]=1
+    end
+    project_ids=@project_activity_count.keys()
+    
+    days = Setting.activity_days_default.to_i
+    date_to ||= Date.today + 1
+    date_from = date_to - days-1.years
+
+#approach 1    
+=begin
+
+    @projects_all.each do |project|
+      #issue_count
+      issues=Issue.where("project_id=?",project.id)
+      issue_count=0
+      issues.each do |issue|
+        issue_count+=issue.journals.count
+      end
+
+      #repository_count
+      repositories=Repository.where("project_id=?",project.id)
+      repository_count=0
+      repositories.each do |repository|
+        repository_count+=repository.changesets.count
+      end
+
+      #news_count
+      news_count=News.where("project_id=?",project.id).count
+      #document_count
+      document_count=Document.where("project_id=?",project.id).count
+      #file_count
+      file_count=Attachment.where("container_type='Project' AND container_id=?",project.id).count
+
+      #message_count
+      boards=Board.where("project_id=?",project.id)
+      message_count=0
+      boards.each do |board|
+        message_count+=board.messages.count
+      end
+
+      #time_entry_count
+      time_entry_count=TimeEntry.where("project_id=?",project.id).count
+
+      #sum
+      @project_activity_count[project.id.to_s]=issue_count+repository_count+news_count+document_count+file_count+message_count+time_entry_count
+
+    end
+=end
+#gcm
+
+#gcm approach 2
+
+    #issue_count
+    Issue.where(project_id: project_ids).where("updated_on>?",date_from).each do |issue|
+#      @project_activity_count[issue.project_id.to_s]+=1
+      @project_activity_count[issue.project_id]+=issue.journals.where("created_on>?",date_from).count
+    end
+
+    #repository_count
+    Repository.where(project_id: project_ids).each do |repository|
+#      @project_activity_count[repository.project_id.to_s]+=1
+      @project_activity_count[repository.project_id]+=repository.changesets.where("committed_on>?",date_from).count
+    end
+
+
+    #news_count
+    News.where(project_id: project_ids).where("created_on>?",date_from).each do |news|
+      @project_activity_count[news.project_id]+=1
+    end
+
+    #document_count
+    Document.where(project_id: project_ids).where("created_on>?",date_from).each do |document|
+      @project_activity_count[document.project_id]+=1
+    end
+
+    #file_count
+    Attachment.where(container_id: project_ids).where("container_type='Project' AND created_on>?",date_from).each do |attachment|
+      @project_activity_count[attachment.container_id]+=1
+    end
+
+    #message_count
+    Board.where(project_id: project_ids).take(1) do |board|
+#      @project_activity_count[board.project_id]+=1
+      @project_activity_count[board.project_id]+=board.messages.where("updated_on>?",date_from).count
+    end
+
+    #time_entry_count
+    TimeEntry.where(project_id: project_ids).where("updated_on>?",date_from).each do |timeentry|
+      @project_activity_count[timeentry.project_id]+=1
+    end
+    
+
+    @project_activity_count_array=@project_activity_count.values()
+    max_ac=@project_activity_count_array.max
+
+#gcm end
+
 
     case params[:project_sort_type]
     when '0'
@@ -575,7 +678,7 @@ class ProjectsController < ApplicationController
       "show_journals_for_messages" => true
     }
     @date_to ||= Date.today + 1
-    @date_from = @date_to - @days
+    @date_from = @date_to - @days-1.years
     @with_subprojects = params[:with_subprojects].nil? ? Setting.display_subprojects_issues? : (params[:with_subprojects] == '1')
     @author = (params[:user_id].blank? ? nil : User.active.find(params[:user_id]))
     # 决定显示所用用户或单个用户活动
@@ -880,4 +983,8 @@ class ProjectsController < ApplicationController
        @users -= watched.watcher_users
     end
   end
+
+  def desc_sort_course_by_avtivity(projects,ids,activities)
+
+  end
 end
diff --git a/app/views/projects/_course.html.erb b/app/views/projects/_course.html.erb
index f55a80db3..02845137c 100644
--- a/app/views/projects/_course.html.erb
+++ b/app/views/projects/_course.html.erb
@@ -45,6 +45,15 @@
 		<%= content_tag('span',  link_to("#{@project.members.count}", member_project_path(@project)), :class => "info") %>
 		<%= content_tag('span',  l(:label_x_member, :count => @project.members.count)) %>
 	</p>
+	
+	<!--gcm-->
+	<p class="stats">
+
+		<%= content_tag('span',  link_to("#{@project_activity_count[@project.id]}", member_project_path(@project)), :class => "info") %>
+		<%= content_tag('span',  l(:label_x_activity, :count => @project_activity_count[@project.id])) %>
+	</p>
+	<!--gcm-->
+	
 	<div class="buttons_for_course" style="margin-top:30px;margin-left:144px">
 		<span class="info"></span>
 		<% if @project.project_type==Project::ProjectType_course %>