From 66fee66db05d675fb796611da85e9036816fd191 Mon Sep 17 00:00:00 2001
From: Ilya Konanykhin <ilya.konanykhin@gmail.com>
Date: Thu, 26 Jan 2017 15:56:28 +0600
Subject: [PATCH] Fix: validate username presence & uniqueness

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

diff --git a/app/models/user.rb b/app/models/user.rb
index b5fd9d0..5c62268 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -26,6 +26,7 @@ class User < ActiveRecord::Base
 
   default_scope order('username ASC')
 
+  validates :username, :presence => true, uniqueness: true
   validates :first_name, :presence => true
   validates :last_name, :presence => true