#1619 作业未提交附件时增加提示

app/views/homework_attach/_show.html.erb

@@ -98,11 +98,17 @@
         </div>
     <% end %>
     </p>
-    <p style=" border-bottom:none; color:#333; margin-top:8px;"><strong><%= l(:label_attachment) %>：
+    <p style=" border-bottom:none; color:#333; margin-top:8px;">
+      <strong>
+        <%= l(:label_attachment) %>：
       </strong>
       <span>
-        <% options = {:author => true } %>
-        <%= render :partial => 'app_link', :locals => {:attachments => @homework.attachments, :options => options} %>
+        <% if @homework.attachments.empty?%>
+            <span style="color: #999999">尚未提交附件</span>
+        <% else%>
+            <% options = {:author => true } %>
+            <%= render :partial => 'app_link', :locals => {:attachments => @homework.attachments, :options => options} %>
+        <% end%>
       </span>
     </p>