diff --git a/app/controllers/student_work_controller.rb b/app/controllers/student_work_controller.rb
index 3c103f98b..1b8fc6d28 100644
--- a/app/controllers/student_work_controller.rb
+++ b/app/controllers/student_work_controller.rb
@@ -866,6 +866,10 @@ class StudentWorkController < ApplicationController
     end
     attachment = @work.attachments.where("attachtype = 7").first
     attachment.update_attributes(:description => params[:description])
+    if attachment.attachtype == 7
+      student_work = StudentWork.find attachment.container_id
+      CourseMessage.create(:user_id => student_work.homework_common.user_id, :course_id => student_work.homework_common.course_id, :viewed => false,:course_message_id=>attachment.container_id,:course_message_type=>'StudentWork',:status=>2)
+    end
     respond_to do |format|
       format.js
     end
diff --git a/app/models/attachment.rb b/app/models/attachment.rb
index 754bd4dee..b3f5ce4ed 100644
--- a/app/models/attachment.rb
+++ b/app/models/attachment.rb
@@ -301,7 +301,7 @@ class Attachment < ActiveRecord::Base
     nil
   end
 
-    def filename=(arg)
+  def filename=(arg)
     write_attribute :filename, sanitize_filename(arg.to_s)
     filename
   end
diff --git a/app/views/users/_user_message_course.html.erb b/app/views/users/_user_message_course.html.erb
index 9d49f687f..f8e6655d9 100644
--- a/app/views/users/_user_message_course.html.erb
+++ b/app/views/users/_user_message_course.html.erb
@@ -497,6 +497,26 @@
           <li class="homepageNewsTime fl"><%= time_tag(ma.created_at).html_safe %> </li>
         </ul>
     <% end %>
+    <!-- 学生追加作品附件 -->
+    <% if ma.course_message_type == "StudentWork" && ma.status == 2 %>
+        <ul class="homepageNewsList fl">
+          <li class="homepageNewsPortrait fl">
+            <a href="javascript:void(0);"><%= link_to image_tag(url_to_avatar(ma.course_message.user), :width => "30", :height => "30"), user_path(ma.course_message.user) %></a>
+          </li>
+          <li class="homepageNewsPubType fl">
+            <%= link_to ma.course_message.user.show_name+ "同学",
+                        user_path(ma.course_message.user), :class => "newsBlue homepageNewsPublisher" %>
+            <span class="<%= ma.viewed == 0 ? "homepageNewsTypeNotRead fl" : "homepageNewsType fl" %>">追加新附件了：</span>
+          </li>
+          <li class="homepageNewsContent fl">
+            <%= link_to "作业标题：" + ma.course_message.homework_common.name, student_work_index_path(:homework => ma.course_message.homework_common_id, :show_work_id => ma.course_message_id),
+                        :class =>"#{ma.viewed == 0 ? "newsBlack" : "newsGrey"}" %>
+            <!--:onmouseover => "message_titile_show($(this),event)",-->
+            <!--:onmouseout => "message_titile_hide($(this))" %>-->
+          </li>
+          <li class="homepageNewsTime fl"><%= time_tag(ma.created_at).html_safe %> </li>
+        </ul>
+    <% end %>
     <!-- 创建课程消息 -->
     <% if ma.course_message_type == "Course" %>
         <ul class="homepageNewsList fl">