From 5e91a258fedeaa415e8258a562a3c6b77460698f Mon Sep 17 00:00:00 2001
From: sw <939547590@qq.com>
Date: Wed, 5 Nov 2014 10:54:39 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E5=B7=B2=E7=BB=8F=E6=8F=90?=
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---
 app/controllers/homework_attach_controller.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/controllers/homework_attach_controller.rb b/app/controllers/homework_attach_controller.rb
index 4b7fdb15e..42c7ffc77 100644
--- a/app/controllers/homework_attach_controller.rb
+++ b/app/controllers/homework_attach_controller.rb
@@ -227,7 +227,7 @@ class HomeworkAttachController < ApplicationController
   def create
     bid = Bid.find params[:bid_id]
     if User.current.admin? || User.current.member_of_course?(bid.courses.first)   # modify by nwb
-      if bid.homeworks.where("user_id = ?",User.current).count == 0
+      if bid.homeworks.where("user_id = ?",User.current).empty?
         user_id = params[:user_id]
         bid_id = params[:bid_id]
         if params[:homework_attach]