Race conditions can lead to duplicate CachedTickets

2016-12-23 11:02:29 +01:00
parent 0082216d75
commit 873c7dc65d
1 changed files with 2 additions and 2 deletions
--- a/src/pretix/presale/views/order.py
+++ b/src/pretix/presale/views/order.py
@@ -509,9 +509,9 @@ class OrderDownload(EventViewMixin, OrderDetailMixin, View):
            return redirect(self.get_order_url())

        try:
-            ct = CachedTicket.objects.get(
+            ct = CachedTicket.objects.filter(
                order_position=self.order_position, provider=self.output.identifier
-            )
+            ).last()
        except CachedTicket.DoesNotExist:
            ct = None