From dc7a465a8cd7d20a7e082384fcfe39f69b7674b4 Mon Sep 17 00:00:00 2001
From: Nico Schottelius <nico@nico-notebook.schottelius.org>
Date: Sun, 10 May 2020 14:22:09 +0200
Subject: [PATCH] Fix exception if first order does not have billing address

---
 uncloud_pay/models.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/uncloud_pay/models.py b/uncloud_pay/models.py
index 89ec917..efb7b07 100644
--- a/uncloud_pay/models.py
+++ b/uncloud_pay/models.py
@@ -327,7 +327,10 @@ class Bill(models.Model):
         orders = Order.objects.filter(bill=self)
         # The genrate_for method makes sure all the orders of a bill share the
         # same billing address. TODO: It would be nice to enforce that somehow...
-        return orders[0].billing_address
+        if orders:
+            return orders[0].billing_address
+        else:
+            return None
 
     # TODO: split this huuuge method!
     @staticmethod