<% hero_homework_scores = hero_homework_score(course, "desc") %> <% unless hero_homework_scores.map(&:score).detect{|s| s.to_i != 0}.nil? %>

积分规则
英雄榜的得分是每个同学作业的得分总和

<%=link_to image_tag(url_to_avatar(student_score.user), :width => "35", :height => "35", :class=> "rankPortrait"),user_path(student_score.user) %>
<%=link_to student_score.user.show_name, user_path(student_score.user), :title => student_score.user.show_name %>

<%= student_score.score<0 ? 0 : student_score.score.to_i %>

<% end %>