From 0dec3269d84c2233d4fabe6001166d5615e4987a Mon Sep 17 00:00:00 2001
From: Guo Xiang Tan <tgx_world@hotmail.com>
Date: Wed, 8 Nov 2017 11:43:41 +0800
Subject: [PATCH] Validates presence of `UserEmail#user_id` in AR.

---
 app/models/user_email.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/models/user_email.rb b/app/models/user_email.rb
index 2186e6522ee..8d019853a5a 100644
--- a/app/models/user_email.rb
+++ b/app/models/user_email.rb
@@ -7,6 +7,7 @@ class UserEmail < ActiveRecord::Base
 
   before_validation :strip_downcase_email
 
+  validates :user_id, presence: true
   validates :email, presence: true, uniqueness: true
 
   validates :email, email: true, format: { with: EmailValidator.email_regex },