From 13a5cbb4d5d2740af404a33833b46f74b0c18173 Mon Sep 17 00:00:00 2001
From: bashmak <nerosketch@gmail.com>
Date: Mon, 4 Sep 2017 14:55:21 +0300
Subject: [PATCH] =?UTF-8?q?FIXBUG:=20=D0=92=20=D1=84=D1=83=D0=BD=D0=BA?=
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---
 abonapp/models.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/abonapp/models.py b/abonapp/models.py
index 794744c..ec59e76 100644
--- a/abonapp/models.py
+++ b/abonapp/models.py
@@ -203,6 +203,8 @@ class Abon(UserProfile):
     # Производим расчёт услуги абонента, т.е. завершаем если пришло время
     def bill_service(self, author):
         abon_tariff = self.active_tariff()
+        if abon_tariff is None:
+            return
         nw = timezone.now()
         # если услуга просрочена
         if nw > abon_tariff.deadline: