From 552d84648643fe8dde62321e5b015c07535c6c0b Mon Sep 17 00:00:00 2001
From: LouisGac <louis.gac@limesurvey.org>
Date: Thu, 17 Nov 2016 14:03:04 +0100
Subject: [PATCH] Fixed issue: (Debug Mode) PHP notice when entering a non
 existent user name on login.

---
 application/core/plugins/Authdb/Authdb.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/application/core/plugins/Authdb/Authdb.php b/application/core/plugins/Authdb/Authdb.php
index a0a8f9d017e..c42fc2c06d7 100644
--- a/application/core/plugins/Authdb/Authdb.php
+++ b/application/core/plugins/Authdb/Authdb.php
@@ -131,7 +131,10 @@ public function newUserSession()
 
         if ($user == null){
           $user = $this->api->getUserByEmail($username);
-          $this->setUsername($user->users_name);
+          
+          if (is_object($user)){
+              $this->setUsername($user->users_name);
+          }
         }
 
         if ($user !== null && $user->uid != 1 && !Permission::model()->hasGlobalPermission('auth_db','read',$user->uid))