课程推荐为0的不显示

app/views/courses/_recommendation.html.erb

@@ -5,8 +5,15 @@
           <li>
             <span class="sy_sq_orange fl mr5 mt5"><%= i+1 %></span>
             <%=link_to e_course.name, course_path(e_course.id), :class => "sy_class_ltitle fl mb10" %>
-            <p class="sy_cgrey ml20">作业<span class="sy_cir_grey ml5 mr5"><%=e_course.homework_commons.where("publish_time <= '#{Date.today}'").count %></span>
-              资源<span class="sy_cir_grey ml5 mr5"><%=visable_attachemnts_incourse(e_course).count %></span>
+            <p class="sy_cgrey ml20">
+              <% homework_count = e_course.homework_commons.where("publish_time <= '#{Date.today}'").count %>
+              <% if homework_count > 0 %>
+                作业<span class="sy_cir_grey ml5 mr5"><%=homework_count %></span>
+              <% end %>
+              <% file_count = visable_attachemnts_incourse(e_course).count %>
+              <% if file_count > 0 %>
+                资源<span class="sy_cir_grey ml5 mr5"><%=file_count %></span>
+              <% end %>
             </p>
           </li>
       <% end %>