diff --git a/app/views/users/_user_message_course.html.erb b/app/views/users/_user_message_course.html.erb
index 93d55d162..e02fe7399 100644
--- a/app/views/users/_user_message_course.html.erb
+++ b/app/views/users/_user_message_course.html.erb
@@ -229,7 +229,7 @@
           <li class="homepageNewsTime fl"><%= time_tag(ma.created_at).html_safe %> </li>
         </ul>
     <% end %>
-    <% if ma.course_message_type == "HomeworkCommon" && ma.status == 5 && ma.course_message %>
+    <% if ma.course_message_type == "HomeworkCommon" && ma.status == 5 %>
         <ul class="homepageNewsList fl" id="course_message_homework_<%=ma.id %>">
           <%= render :partial => 'apply_homework_course_message', :locals => {:ma => ma} %>
         </ul>
@@ -569,7 +569,9 @@
           <li class="homepageNewsTime fl"><%= time_tag(ma.created_at).html_safe %> </li>
         </ul>
     <% end %>
-    <% if ma.course_message_type == "JoinCourseRequest" && !ma.nil? && ma.course_message %>
+
+    <!--# ma.course_message_id 是用户id-->
+    <% if ma.course_message_type == "JoinCourseRequest" && !ma.nil? %>
         <ul class="homepageNewsList fl" id="course_message_join_<%=ma.id %>">
           <%= render :partial => 'join_course_course_message', :locals => {:ma => ma} %>
         </ul>
@@ -607,7 +609,7 @@
     <% end %>
 
     <!--被老师拉入课程-->
-    <% if ma.course_message_type == "JoinCourse" and ma.status == 0 && ma.course_message %>
+    <% if ma.course_message_type == "JoinCourse" and ma.status == 0 %>
         <ul class="homepageNewsList fl">
           <li class="homepageNewsPortrait fl">
             <a href="javascript:void(0);"><%=link_to image_tag(url_to_avatar(User.find(ma.course_message_id)), :width => "30", :height => "30"), user_path(ma.course_message_id), :target => '_blank' %></a>
@@ -641,7 +643,7 @@
     <% end %>
 
     <!--被老师拉入课程-->
-    <% if ma.course_message_type == "JoinCourse" and ma.status == 1 && ma.course_message %>
+    <% if ma.course_message_type == "JoinCourse" and ma.status == 1 %>
         <ul class="homepageNewsList fl">
           <li class="homepageNewsPortrait fl">
             <a href="javascript:void(0);"><div class="navHomepageLogo fl"><%= image_tag("/images/trustie_logo1.png", width: "30px", height: "30px", class: "mt3") %></div></a>
@@ -675,7 +677,7 @@
     <% end %>
     
     <!--被老师移出课程-->
-    <% if ma.course_message_type == "RemoveFromCourse" && ma.course_message %>
+    <% if ma.course_message_type == "RemoveFromCourse" %>
         <ul class="homepageNewsList fl">
           <li class="homepageNewsPortrait fl">
             <a href="javascript:void(0);"><%=link_to image_tag(url_to_avatar(User.find(ma.course_message_id)), :width => "30", :height => "30"), user_path(ma.course_message_id), :target => '_blank' %></a>