修改英雄版为0显示的问题

app/views/layouts/base_courses.html.erb

@@ -240,11 +240,11 @@
       <% end %>
 
       <% hero_homework_scores = hero_homework_score(@course, "desc") %>
-      <% unless hero_homework_scores.map(&:score).detect{|s| s != nil}.nil? %>
+      <% unless hero_homework_scores.map(&:score).detect{|s| s.to_i != 0}.nil? %>
         <ul class="rankList">
           <h4>课程英雄榜</h4>
           <% hero_homework_scores.each do |student_score| %>
-              <% unless student_score.score.nil? %>
+              <% if student_score.score.to_i != 0 %>
                   <li> <a href="javascript:void:(0);"><%=link_to image_tag(url_to_avatar(student_score.user), :width => "35", :height => "35", :class=> "rankPortrait"),user_path(student_score.user) %></a>
                     <p><a href="javascript:void:(0);"><%=link_to student_score.user, user_path(student_score.user), :title => student_score.user %></a></p>
                     <p><span class="c_red" style="cursor:pointer" title="作业总分：<%= student_score.score  %>"><%= student_score.score.to_i %></span></p>