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app/controllers/files_controller.rb

@@ -134,8 +134,12 @@ class FilesController < ApplicationController
     if sort == ""
       sort =  "created_on DESC"
     end
+    if keywords != "%%"
     resultSet = Attachment.where("attachments.container_type = 'Course' And attachments.container_id = '#{course.id}' AND filename LIKE :like ", like: "%#{keywords}%").
         reorder(sort)
+    else
+      resultSet = Attachment.where("attachments.container_type = 'Course' And attachments.container_id = '#{course.id}' "). reorder(sort)
+    end
     #resultSet = Attachment.find_by_sql("SELECT `attachments`.* FROM `attachments` LEFT OUTER JOIN `homework_attaches` ON `attachments`.container_type = 'HomeworkAttach' AND `attachments`.container_id = `homework_attaches`.id LEFT OUTER JOIN `homework_for_courses` ON `homework_attaches`.bid_id = `homework_for_courses`.bid_id LEFT OUTER JOIN `homework_for_courses` AS H_C ON `attachments`.container_type = 'Bid' AND `attachments`.container_id = H_C.bid_id WHERE (`homework_for_courses`.course_id = 117 OR H_C.course_id = 117 OR (`attachments`.container_type = 'Course' AND `attachments`.container_id = 117)) AND `attachments`.filename LIKE '%#{keywords}%'").reorder("created_on DESC")
   end
 
@@ -547,7 +551,7 @@ class FilesController < ApplicationController
     q = "%#{@q.strip}%"
     @result = find_course_attache q,@course,sort
     @result = visable_attachemnts @result
-    @result = @result.select{|attachment| attachment.tag_list.include?(@tag_name)}
+    @result = @result.select{|attachment| attachment.tag_list.include?(@tag_name)} unless @tag_name.blank?
     @searched_attach = paginateHelper @result,10
     @tag_list = get_course_tag_list @course
 

app/views/files/_tag_yun.html.erb

@@ -1,3 +1,7 @@
+<span class="files_tag_icon" >
+          <a  title="双击可编辑"
+              onclick="search_tag_attachment('<%= search_tag_attachment_course_files_path(course)%>','','<%= @q%>','<%= course.id%>');"
+              >全部</a></span>
 <% unless tag_list.nil?%>
     <% tag_list.each do |k,v|%>
         <% if tag_name && tag_name == k%>