添加下载原始文件链接

app/views/files/_course_list.html.erb

@@ -40,6 +40,7 @@
                   <% else %>
                       <%= link_to("选入我的课程",quote_resource_show_course_file_path(@course,file),:class => "f_l re_select c_lorange",:remote => true) if has_course?(User.current,file) %>
                   <% end %>
+                  <%= link_to '下载',download_named_attachment_path(file.id, file.filename, force: true),class: 'f_l re_open'  %>
               <% else %>
               <% end %>
             </div>