diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 2caae19e1..bc9394716 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -1146,25 +1146,25 @@ class UsersController < ApplicationController
     #   @attachments = Attachment.where("author_id = #{params[:id]} and container_type not in ('Version','PhoneAppVersion','StudentWork') and is_public = 1 and  (filename like '%#{search}%')  ").order("created_on desc")
     # end
     if(params[:type].nil? || params[:type] == "1") #全部
-      if User.current.id == params[:id]
+      if User.current.id.to_i == params[:id].to_i
         @attachments = Attachment.where("author_id = #{params[:id]} and container_type in('Project','Principal','Course','Issue','Document','Message','News','StudentWorkScore','HomewCommon')  and (filename like '%#{search}%') ").order("created_on desc")
       else
         @attachments = Attachment.where("author_id = #{params[:id]} and is_public = 1 and container_type in('Project','Principal','Course','Issue','Document','Message','News','StudentWorkScore','HomewCommon')  and (filename like '%#{search}%') ").order("created_on desc")
       end
     elsif params[:type] == "2" #课程资源
-      if User.current.id == params[:id]
+      if User.current.id.to_i == params[:id].to_i
         @attachments = Attachment.where("author_id = #{params[:id]} and container_type = 'Course'  and (filename like '%#{search}%')").order("created_on desc")
       else
         @attachments = Attachment.where("author_id = #{params[:id]} and is_public = 1 and container_type = 'Course'  and (filename like '%#{search}%') ").order("created_on desc")
       end
     elsif params[:type] == "3" #项目资源
-      if User.current.id == params[:id]
+      if User.current.id.to_i == params[:id].to_i
         @attachments = Attachment.where("author_id = #{params[:id]} and container_type = 'Project'  and (filename like '%#{search}%')").order("created_on desc")
       else
         @attachments = Attachment.where("author_id = #{params[:id]} and is_public = 1 and container_type = 'Project'  and (filename like '%#{search}%') ").order("created_on desc")
       end
     elsif params[:type] == "4" #附件
-      if User.current.id == params[:id]
+      if User.current.id.to_i == params[:id].to_i
         @attachments = Attachment.where("author_id = #{params[:id]} and container_type in('Project','Issue','Document','Message','News','StudentWorkScore','HomewCommon')  and (filename like '%#{search}%')").order("created_on desc")
       else
         @attachments = Attachment.where("author_id = #{params[:id]} and is_public = 1 and container_type in('Issue','Document','Message','News','StudentWorkScore','HomewCommon')  and (filename like '%#{search}%')").order("created_on desc")