Add testmode for gift cards

src/pretix/base/models/giftcards.py

@@ -52,6 +52,10 @@ class GiftCard(LoggedModel):
         db_index=True,
         verbose_name=_('Gift card code'),
     )
+    testmode = models.BooleanField(
+        verbose_name=_('Test mode card'),
+        default=False
+    )
     CURRENCY_CHOICES = [(c.alpha_3, c.alpha_3 + " - " + c.name) for c in settings.CURRENCIES]
     currency = models.CharField(max_length=10, choices=CURRENCY_CHOICES)
 

src/pretix/base/models/orders.py

@@ -201,7 +201,7 @@ class Order(LockModel, LoggedModel):
         return self.full_code
 
     def gracefully_delete(self, user=None, auth=None):
-        from . import Voucher
+        from . import Voucher, GiftCard, GiftCardTransaction
 
         if not self.testmode:
             raise TypeError("Only test mode orders can be deleted.")
@@ -217,6 +217,10 @@ class Order(LockModel, LoggedModel):
                 if position.voucher:
                     Voucher.objects.filter(pk=position.voucher.pk).update(redeemed=Greatest(0, F('redeemed') - 1))
 
+        GiftCardTransaction.objects.filter(payment__in=self.payments.all()).update(payment=None)
+        GiftCardTransaction.objects.filter(refund__in=self.refunds.all()).update(refund=None)
+        GiftCardTransaction.objects.filter(order=self).update(order=None)
+        GiftCard.objects.filter(issued_in__in=self.positions.all()).update(issued_in=None)
         OrderPosition.all.filter(order=self, addon_to__isnull=False).delete()
         OrderPosition.all.filter(order=self).delete()
         OrderFee.all.filter(order=self).delete()