课程作业显示列表增加该作业平均评分

app/controllers/homework_attach_controller.rb

@@ -23,6 +23,7 @@ class HomeworkAttachController < ApplicationController
     @jour = @jours[@offset, @limit]
   end
 
+  #删除留言
   def destroy
     @journal_destroyed = JournalsForMessage.delete_message(params[:object_id])
     respond_to do |format|
@@ -30,6 +31,7 @@ class HomeworkAttachController < ApplicationController
     end
   end
 
+  #添加留言
   def addjours
     @homework = HomeworkAttach.find(params[:jour_id])
     @homework.addjours User.current.id, params[:new_form][:user_message],0
@@ -43,5 +45,17 @@ class HomeworkAttachController < ApplicationController
       format.js
     end
   end
+
+  #获取指定作业的平均得分
+  def score
+    #stars_reates = @homework.rates(:quality)
+    #percent = 0
+    #stars_reates.each do |star_reates|
+    #  percent = percent + star_reates.stars
+    #end
+    #stars_reates_count = stars_reates.count == 0 ? 1 : stars_reates.count
+    #result = percent * 1.0 /  stars_reates_count
+    #result
+  end
 end
 

app/models/homework_attach.rb

@@ -14,4 +14,14 @@ class HomeworkAttach < ActiveRecord::Base
     jfm.save
     jfm
   end
+
+  def score
+    stars_reates = self.rates(:quality)
+    percent = 0
+    stars_reates.each do |star_reates|
+      percent = percent + star_reates.stars
+    end
+    result = percent * 1.0 /  stars_reates.count
+    result
+  end
 end

app/views/bids/_homework_list.html.erb

@@ -37,7 +37,19 @@
                       <%= link_to filename , homework_attach_path(homework)%>
                     </tr>
 					<tr>
-						<td colspan="1" valign="top">&nbsp;&nbsp;<strong>发布人:&nbsp; <%= link_to homework.user, user_path(homework.user)%></strong> </td>
+						<td colspan="1" valign="top" style="width: 300px">&nbsp;
+                          <strong>发布人:&nbsp; <%= link_to homework.user, user_path(homework.user)%></strong>
+                        </td>
+                        <td>
+                          <strong>作业评分：</strong>
+                          <% stars_reates = homework.rates(:quality) %>
+                          <% sum = 0 %>
+                          <% stars_reates.each do |star_reates| %>
+                              <% sum = sum + star_reates.stars %>
+                          <% end %>
+                          <% stars_reates_count = stars_reates.count == 0 ? 1 : stars_reates.count %>
+                          <%= sum * 1.0 / stars_reates_count  %>
+                        </td>
 						<td valign="top" align="right">
 							<% if Time.parse(@bid.deadline.to_s) < Time.parse(homework.attachments[0].created_on.to_s) %>
 								<span class="required">迟交</span>