发布作业后的附件不可擦看问题

app/views/attachments/file.html.erb

@@ -6,8 +6,8 @@
 <p><%= link_to_attachment @attachment, :text => l(:button_download), :download => true -%>
    <span class="size">(<%= number_to_human_size @attachment.filesize %>)</span>&nbsp&nbsp&nbsp
    <span class="size">
-     <!-- &&(@attachment.container_type == 'Document' || @attachment.container_type == 'WikiPage') -->
-     <% if @attachment!=nil&&User.current.allowed_to?({:controller => 'code_review', :action => 'update_diff_view'}, @attachment.project) %>
+     <!-- -->
+     <% if @attachment!=nil &&(@attachment.container_type == 'Document' || @attachment.container_type == 'WikiPage')&&User.current.allowed_to?({:controller => 'code_review', :action => 'update_diff_view'}, @attachment.project) %>
           <%= l(:review_assignments)+":" %><%=    link = link_to(l(:button_add), {:controller => 'code_review',
                                           :action => 'assign', :action_type => 'attachment',
                                           :id=>@attachment.project,