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Do not CASCADE-delete vouchers when deleting items or quotas

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This commit is contained in:
Raphael Michel
2019-07-11 12:33:42 +02:00
parent f066ed01ff
commit d994fc674a
6 changed files with 66 additions and 20 deletions
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5
src/pretix/base/models/items.py
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@@ -174,6 +174,8 @@ def filter_available(qs, channel='web', voucher=None, allow_addons=False):
q &= Q(pk=voucher.item_id)
elif voucher.quota_id:
q &= Q(quotas__in=[voucher.quota_id])
else:
return qs.none()
if not voucher or not voucher.show_hidden_items:
q &= Q(hide_without_voucher=False)
@@ -411,6 +413,7 @@ class Item(LoggedModel):
self.event.cache.clear()
def delete(self, *args, **kwargs):
self.vouchers.update(item=None, variation=None, quota=None)
super().delete(*args, **kwargs)
if self.event:
self.event.cache.clear()
@@ -655,6 +658,7 @@ class ItemVariation(models.Model):
return t
def delete(self, *args, **kwargs):
self.vouchers.update(item=None, variation=None, quota=None)
super().delete(*args, **kwargs)
if self.item:
self.item.event.cache.clear()
@@ -1275,6 +1279,7 @@ class Quota(LoggedModel):
return self.name
def delete(self, *args, **kwargs):
self.vouchers.update(item=None, variation=None, quota=None)
super().delete(*args, **kwargs)
if self.event:
self.event.cache.clear()