From bde5b8c87713794f283b733bbbd696dcdb87701d Mon Sep 17 00:00:00 2001
From: Kerwin <sunkaihuisos@gmail.com>
Date: Tue, 12 Feb 2019 23:43:10 +0800
Subject: [PATCH] fix raise error when email is none

---
 nativeauthenticator/orm.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nativeauthenticator/orm.py b/nativeauthenticator/orm.py
index 740e235..842a7df 100644
--- a/nativeauthenticator/orm.py
+++ b/nativeauthenticator/orm.py
@@ -35,6 +35,8 @@ def change_authorization(cls, db, username):
 
     @validates('email')
     def validate_email(self, key, address):
+        if not address:
+            return
         assert re.match(r"^[A-Za-z0-9\.\+_-]+@[A-Za-z0-9\._-]+\.[a-zA-Z]*$",
                         address)
         return address