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Fixed transaction handling problem if a race condition occurs during invoice creation

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Raphael Michel
2016-09-05 23:19:25 +02:00
parent 30ab315fec
commit f1495f242f
1 changed files with 3 additions and 2 deletions
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5
src/pretix/base/models/invoices.py
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@@ -2,7 +2,7 @@ import string
from datetime import date from datetime import date
from decimal import Decimal from decimal import Decimal
from django.db import DatabaseError, models from django.db import DatabaseError, models, transaction
from django.db.models import Max from django.db.models import Max
from django.utils.crypto import get_random_string from django.utils.crypto import get_random_string
from django.utils.functional import cached_property from django.utils.functional import cached_property
@@ -88,7 +88,8 @@ class Invoice(models.Model):
else: else:
self.invoice_no = self._get_invoice_number_from_order() self.invoice_no = self._get_invoice_number_from_order()
try: try:
return super().save(*args, **kwargs) with transaction.atomic():
return super().save(*args, **kwargs)
except DatabaseError: except DatabaseError:
# Suppress duplicate key errors and try again # Suppress duplicate key errors and try again
if i == 9: if i == 9: