From b8f010217604c42148d589eae56804e0a59816f2 Mon Sep 17 00:00:00 2001
From: daiao <358551898@qq.com>
Date: Mon, 29 Jul 2019 16:56:04 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=81=E7=A7=BB=E6=8A=A5=E9=94=99?=
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---
 db/migrate/20190729080935_modify_login_for_users.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/db/migrate/20190729080935_modify_login_for_users.rb b/db/migrate/20190729080935_modify_login_for_users.rb
index 335079a06..60e5e0964 100644
--- a/db/migrate/20190729080935_modify_login_for_users.rb
+++ b/db/migrate/20190729080935_modify_login_for_users.rb
@@ -3,7 +3,7 @@ class ModifyLoginForUsers < ActiveRecord::Migration[5.2]
     users = User.where("created_on > '2019-07-26 19:00:00'")
     users.find_each do |use|
       use.update_attributes(login: use.login&.strip, phone: use.phone&.strip)
-      use.user_extension.update_column(:student_id, use.user_extension&.student_id&.strip)
+      use.user_extension.update_column(:student_id, use.user_extension&.student_id&.strip) if use.user_extension
     end
   end
 end