课程讨论区编辑帖子报错

app/views/boards/_course_message_edit.html.erb

@@ -12,5 +12,5 @@
     </div>
   </div>
   <%= render :partial => 'boards/course_new',
-             :locals => {:f => f, :edit_mode => edit_mode, :topic => topic} %>
+             :locals => {:f => f, :edit_mode => edit_mode, :topic => topic, :course => course} %>
 </div>

app/views/messages/edit.html.erb

@@ -30,7 +30,7 @@
                       :method => :post}
     } do |f| %>
         <%= render :partial => 'boards/course_message_edit',
-                   :locals => {:f => f, :edit_mode => true, :topic => @message} %>
+                   :locals => {:f => f, :edit_mode => true, :topic => @message, :course => @message.course} %>
 
     <% end %>
 <% end %>