diff --git a/app/models/mailer.rb b/app/models/mailer.rb
index 087fb6d73..1325ef613 100644
--- a/app/models/mailer.rb
+++ b/app/models/mailer.rb
@@ -115,14 +115,15 @@ class Mailer < ActionMailer::Base
       count = courses.count
       count = count - 1
       for i in 0..count do
-        bids =  courses[i].homeworks.where("bids.created_on between '#{date_from}' and '#{date_to}'").order("bids.created_on desc")
+        bids =  courses[i].homework_commons.where("homework_commons.created_at between '#{date_from}' and '#{date_to}'").order("homework_commons.created_at desc")
         attachments = courses[i].attachments.where("attachments.created_on between '#{date_from}' and '#{date_to}'").order('attachments.created_on DESC')
         @bids += bids if bids.count > 0
         @attachments += attachments if attachments.count > 0
+
       end
     end
     # user 提交的作业
-    @homeworks = HomeworkAttach.where("user_id=#{user.id} and (created_at between '#{date_from}' and '#{date_to}')").order("created_at desc")
+    # @homeworks = HomeworkAttach.where("user_id=#{user.id} and (created_at between '#{date_from}' and '#{date_to}')").order("created_at desc")
 
     # 查询user在课程。项目中发布的讨论帖子
     messages = Message.find_by_sql("select me.* from messages me, boards b, members m where
@@ -157,7 +158,7 @@ class Mailer < ActionMailer::Base
     @memos = Memo.find_by_sql("select DISTINCT m.* from memos m, forums f where (m.author_id = #{user.id} or (m.forum_id = f.id and f.creator_id = #{user.id}))
                            and (m.created_at between '#{date_from}' and '#{date_to}')  order by m.created_at desc")
 
-    has_content = [@issues,@homeworks,@course_messages,@project_messages,@course_news,@project_news,
+    has_content = [@issues,@course_messages,@project_messages,@course_news,@project_news,
                    @course_journal_messages,@user_journal_messages,@forums,@memos,@attachments,@bids].any? {|o| !o.empty?}
     mylogger.debug "Sent activity mail : #{user.mail} - #{has_content}"
     #有内容才发，没有不发
diff --git a/app/views/mailer/send_for_user_activities.html.erb b/app/views/mailer/send_for_user_activities.html.erb
index da8b4c8c3..e1712a15d 100644
--- a/app/views/mailer/send_for_user_activities.html.erb
+++ b/app/views/mailer/send_for_user_activities.html.erb
@@ -3,7 +3,7 @@
   <%= @subject %>
 </h4>
 <% if @attachments.first || @course_news.first || @bids.first ||
-        @homeworks.first || @course_journal_messages.first|| @course_messages.first %>
+        @course_journal_messages.first|| @course_messages.first %>
     <div class="wmail_main" style="padding:20px 10px 0px;">
       <h2 class="wmail_h2" style="color:#15bccf; "><%= l(:label_course_overview)%></h2>
       <% unless @course_news.first.nil? %>
@@ -39,7 +39,7 @@
       <% end %>
 
       <!--课程作业-->
-      <% if  !@bids.first.nil?  || !@homeworks.first.nil? %>
+      <% if  !@bids.first.nil? %>
           <ul class="wmail_ul" style="clear: both;margin-left:10px; border-bottom:1px dashed #cfcfcf; padding-bottom:15px; width:720px; margin-bottom:15px;">
             <h4 class="wmail_h4" style="color:#474646; font-size:14px; margin-bottom:5px;"><%= l(:label_homework_overview) %><span class="wmail_num" style="color:#fe3f0c; margin-left:5px; font-weight:normal;">(<%= @bids.count %>)</span></h4>
             <% unless @bids.first.nil?%>
@@ -65,29 +65,6 @@
                     </li>
                 <% end %>
             <% end %>
-            <% unless @homeworks.first.nil? %>
-                <% @homeworks.each do |homework| %>
-                    <li style="clear: both; list-style: none;">
-                      <span class="wmail_dis" style="float:left; color:#000000; margin-right:5px;">▪</span>
-                      <span class="wmail_b" style="color:#1b55a7; font-weight:bold; float:left;">[</span>
-
-                      <%= link_to truncate(homework.bid.courses.first.name,length: 30,omission: '...'), course_url(homework.bid.courses.first, :token => @token.value),
-                                  :class=> "wmail_column",
-                                  :style=> " font-weight: bold; display:block; float:left; color:#1b55a7;overflow:hidden; white-space: nowrap; text-overflow:ellipsis;" %>
-                      <span class="wmail_b" style="color:#1b55a7; font-weight:bold; float:left;">]</span>
-
-                      <%= link_to homework.user, user_activities_url(homework.user,:token => @token.value), :class => "wmail_name",
-                                  :style => "color:#fe5722; float:left;display:block; margin-right:5px; margin-left:5px;  overflow:hidden; white-space: nowrap; text-overflow:ellipsis;"%>
-                      <span class="wmail_txt" style="float:left; margin-right:5px;color:#6e6e6e;"><%= l(:label_course_submit_homework) %></span>
-
-                      <%= link_to truncate(homework.name,length: 30,omission: '...'), course_for_bid_url(:id => homework.bid.id,:token => @token.value),
-                                  :class => 'wmail_info',
-                                  :style => "color:#5a5a5a; float:left;   margin-right:5px; display:block;color:#1b55a7;overflow:hidden; white-space: nowrap; text-overflow:ellipsis;"
-                      %>
-                      <span class="wmail_date" style="color:#6e6e6e; float:right;display:block; margin-left:10px;"><%= format_time(homework.created_at) %></span>
-                    </li>
-                <% end %>
-            <% end %>
 
             <div class="cl"></div>
           </ul><!--作业动态 end-->
diff --git a/app/views/mailer/send_for_user_activities.text.erb b/app/views/mailer/send_for_user_activities.text.erb
index 59735225d..2a2382301 100644
--- a/app/views/mailer/send_for_user_activities.text.erb
+++ b/app/views/mailer/send_for_user_activities.text.erb
@@ -1,6 +1,6 @@
 <%= @subject %>
 <% if @attachments.first || @course_news.first || @bids.first ||
-        @homeworks.first || @course_journal_messages.first|| @course_messages.first %>
+      @course_journal_messages.first|| @course_messages.first %>
 <%= l(:label_course_overview)%>
   <% unless @course_news.first.nil? %>
          <%= l(:label_course_news) %>
@@ -27,7 +27,7 @@
         <% end %>
 
   <% end %>
-  <% if  !@bids.first.nil?  || !@homeworks.first.nil? %>
+  <% if  !@bids.first.nil? %>
     <%= l(:label_homework_overview) %><%= @bids.count %>
         <% unless @bids.first.nil?%>
             <% @bids.each do |bid| %>
@@ -51,26 +51,6 @@
 
             <% end %>
         <% end %>
-        <% unless @homeworks.first.nil? %>
-            <% @homeworks.each do |homework| %>
-                ▪[
-
-                  <%= link_to truncate(homework.bid.courses.first.name,length: 30,omission: '...'), course_url(homework.bid.courses.first, :token => @token.value)
-                               
-                                %>
-                  ]
-
-                  <%= link_to homework.user, user_activities_url(homework.user,:token => @token.value)  
-                               %>
-               <%= l(:label_course_submit_homework) %>
-
-                  <%= link_to truncate(homework.name,length: 30,omission: '...'), course_for_bid_url(homework.bid,:token => @token.value)
-                               
-                               
-                  %>
-               <%= format_time(homework.created_at) %>  
-            <% end %>
-        <% end %>
 
 
      <!--作业动态 end-->