From 69ed83fae1a2473223189a4972a90e7e81c8afd2 Mon Sep 17 00:00:00 2001
From: SylorHuang <sylor_huang@126.com>
Date: Wed, 3 Jul 2019 17:34:02 +0800
Subject: [PATCH] fix bug

---
 app/controllers/homework_commons_controller.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/controllers/homework_commons_controller.rb b/app/controllers/homework_commons_controller.rb
index 018218799..66dd7c864 100644
--- a/app/controllers/homework_commons_controller.rb
+++ b/app/controllers/homework_commons_controller.rb
@@ -196,7 +196,7 @@ class HomeworkCommonsController < ApplicationController
       end
 
       if params[:format] == "xlsx"
-        complete_works = @work_excel.exist? ? @work_excel.where("work_status > 0").size : 0
+        complete_works = @work_excel.present? ? @work_excel.where("work_status > 0").size : 0
         if @user_course_identity >= Course::STUDENT
           tip_exception(403, "无权限操作")
         elsif complete_works == 0
@@ -216,7 +216,7 @@ class HomeworkCommonsController < ApplicationController
         if @user_course_identity >= Course::STUDENT
           tip_exception(403, "无权限操作")
         else
-          if @work_excel.exist?
+          if @work_excel.present?
             zip_works = @work_excel&.where("work_status > 0")
             status = checkfileSize(zip_works)
           else