From 4f2bd8c2a4cfea7989bcf5226f34305df81fb2f7 Mon Sep 17 00:00:00 2001
From: resteve <resteve@zikzakmedia.com>
Date: Wed, 7 Jan 2015 09:21:40 +0100
Subject: [PATCH] Return user sale device

---
 sale.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sale.py b/sale.py
index 6a4dab1..91107a9 100644
--- a/sale.py
+++ b/sale.py
@@ -42,7 +42,7 @@ class Sale:
     def default_sale_device():
         User = Pool().get('res.user')
         user = User(Transaction().user)
-        return user.sale_device.id or None
+        return user.sale_device and user.sale_device.id or None
 
     @classmethod
     def get_paid_amount(cls, sales, names):