学生作品列表打开报500

app/views/student_work/_student_work_list.html.erb

@@ -45,8 +45,9 @@
 <% end%>
 <script type="text/javascript">
   $(function(){
+      <% if !@is_evaluation && !@is_teacher %>
           <% work=@homework.student_works.where("user_id = ?",User.current.id).first %>
-      <% unless @is_evaluation %>
+          <% unless work.nil? %>
               <% if @homework.homework_type == 2 %>
                   $("#about_hwork_<%= work.id%>").html("<%= escape_javascript(render :partial => 'programing_work_show',:locals => {:work =>work,:score =>student_work_score(work,User.current),:student_work_scores => work.student_works_scores.order("updated_at desc")}) %>");
 
@@ -79,6 +80,7 @@
                       $("#about_hwork_<%= work.id%>").html("<%= escape_javascript(render :partial => 'show',:locals => {:work => work, :score =>student_work_score(work,User.current),:student_work_scores => work.student_works_scores.order("updated_at desc")}) %>");
                   <% end %>
               <% end %>
+          <% end %>
           $('#score_<%= work.id%>').peSlider({range: 'min'});
       <% end %>
   });