From 2fa03ddd2ae2151ae5c0a85ba08651b43605e34e Mon Sep 17 00:00:00 2001
From: cxt <853663049@qq.com>
Date: Mon, 28 Oct 2019 17:07:26 +0800
Subject: [PATCH] =?UTF-8?q?=E5=AE=9E=E8=AE=AD=E4=BD=9C=E4=B8=9A=E5=AF=BC?=
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---
 app/helpers/export_helper.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/helpers/export_helper.rb b/app/helpers/export_helper.rb
index 4bc86ad29..3c855319c 100644
--- a/app/helpers/export_helper.rb
+++ b/app/helpers/export_helper.rb
@@ -179,7 +179,7 @@ module ExportHelper
         # 关卡评语
         shixun.challenges.pluck(:id).each do |challenge_id|
           challenge_comment = w.shixun_work_comments.select{|comment| comment.challenge_id == challenge_id}.first
-          row_cells_column << challenge_comment ? "学生可见：\n #{challenge_comment.comment.to_s} \n\n  老师可见：\n#{challenge_comment.hidden_comment.to_s}" : "--"
+          row_cells_column << challenge_comment.present? ? "学生可见：\n #{challenge_comment.comment.to_s} \n\n  老师可见：\n#{challenge_comment.hidden_comment.to_s}" : "--"
         end
 
         row_cells_column = row_cells_column.reject(&:blank?)