From 363e6812549a815f2f2da19317febd6a8dd8156a Mon Sep 17 00:00:00 2001
From: sw <939547590@qq.com>
Date: Fri, 12 Dec 2014 16:52:44 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E8=AF=BE=E7=A8=8B=E8=8E=B7?=
 =?UTF-8?q?=E5=8F=96=E5=87=BA=E9=94=99=E7=9A=84BUG?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/controllers/attachments_controller.rb | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/app/controllers/attachments_controller.rb b/app/controllers/attachments_controller.rb
index 34dfca75f..952dcdf44 100644
--- a/app/controllers/attachments_controller.rb
+++ b/app/controllers/attachments_controller.rb
@@ -87,8 +87,9 @@ class AttachmentsController < ApplicationController
       candown= User.current.member_of_course?(course) || (course.is_public==1 && @attachment.is_public == 1)
     elsif @attachment.container.class.to_s=="HomeworkAttach" && @attachment.container.bid.reward_type == 3
       candown = true
-    elsif  @attachment.container_type == "Bid" && @attachment.container && @attachment.container.courses
-      candown = User.current.member_of_course?(@attachment.container.courses.first) || (course.is_public == 1 && @attachment.is_public == 1)
+    elsif  @attachment.container_type == "Bid" && @attachment.container && @attachment.container.courses.first
+      course = @attachment.container.courses.first
+      candown = User.current.member_of_course?(course) || (course.is_public == 1 && @attachment.is_public == 1)
     else
 
       candown = @attachment.is_public == 1