1、增加根据资源列表，获取其TAG与每个TAG数量的hash的方法

2、增加课程资源列表的TAG云的显示

app/controllers/files_controller.rb

@@ -60,6 +60,9 @@ class FilesController < ApplicationController
       sort = "#{@sort} #{@order}"
     end
 
+    show_attachments [@course]
+    @tag_list = attachment_tag_list @all_attachments
+
     begin
       q = "%#{params[:name].strip}%"
       #(redirect_to stores_url, :notice => l(:label_sumbit_empty);return) if params[:name].blank?
@@ -273,6 +276,8 @@ class FilesController < ApplicationController
 
       show_attachments @containers
 
+      @tag_list = attachment_tag_list @all_attachments
+
       render :layout => 'base_courses'
     end
 

app/helpers/files_helper.rb

@@ -120,6 +120,14 @@ module FilesHelper
     result
   end
 
+  def attachment_tag_list attachments
+    tag_list = Hash.new
+    attachments.each do |attachment|
+      attachment.tag_list.map{|tag| tag_list.has_key?(tag) ? tag_list[tag] = tag_list[tag] + 1 : tag_list[tag] = 1}
+    end
+    tag_list.sort {|a,b| b[1]<=>a[1]}
+  end
+
   def visable_attachemnts_insite attachments,obj
     result = []
     if obj.is_a?(Course)

app/views/files/_course_file.html.erb

@@ -73,7 +73,6 @@
     </div><!---re_top end-->
     <div class="cl"></div>
 
-
     <div class="re_con" id="course_list">
       <%= render :partial => 'course_list',:locals => {course: @course,all_attachments: @all_attachments,sort:@sort,order:@order,curse_attachments:@obj_attachments}  %>
     </div><!---re_con end-->

app/views/files/_course_list.html.erb

@@ -16,8 +16,11 @@
 <div class="cl"></div>
 
 <div class="files_tag">
-  <a href="javascript:void(0);" class="files_tag_icon">实验（<span class="c_red">20</span>）</a>
-  <a href="javascript:void(0);" class="files_tag_icon">软件工程（<span class="c_red">20</span>）</a>
+  <% unless @tag_list.nil?%>
+    <% @tag_list.each do |k,v|%>
+          <a href="javascript:void(0);" class="files_tag_icon"><%= k%>（<span class="c_red"><%= v%></span>）</a>
+    <% end%>
+  <% end%>
 </div>
 <div class="cl"></div>