上传课件后TAG云消失

app/controllers/files_controller.rb

@@ -387,6 +387,7 @@ class FilesController < ApplicationController
        @containers = [Course.includes(:attachments).reorder("#{Attachment.table_name}.created_on DESC").find(@course.id)]
 
        show_attachments @containers
+       @tag_list = attachment_tag_list @all_attachments
 
        @attachtype = 0
        @contenttype = 0