管理员界面增加项目、组织、课程、用户、作业个数的显示

app/controllers/admin_controller.rb

@@ -29,6 +29,7 @@ class AdminController < ApplicationController
 
   def index
     @no_configuration_data = Redmine::DefaultData::Loader::no_data?
+    @lastest_login_user_count = User.all.count
   end
 
   def projects

lib/redmine/menu_manager.rb

@@ -1,3 +1,4 @@
+#coding=utf-8
 # Redmine - project management software
 # Copyright (C) 2006-2013  Jean-Philippe Lang
 #
@@ -180,8 +181,20 @@ module Redmine
       end
 
       def render_single_menu_node(item, caption, url, selected)
-
+        title = h(caption)
-          link_to(h(caption), url, item.html_options(:selected => selected))
+        case title
+          when '作业'
+            title = h(caption) + "(#{HomeworkCommon.all.count})"
+          when '组织列表'
+            title = h(caption) + "(#{Organization.all.count})"
+          when '项目列表'
+            title = h(caption) + "(#{Project.all.count})"
+          when '课程列表'
+            title = h(caption) + "(#{Course.all.count})"
+          when '用户列表'
+            title = h(caption) + "(#{User.all.count})"
+        end
+          link_to(title, url, item.html_options(:selected => selected))
 
       end