Cross-organizer acceptance

src/pretix/base/models/organizer.py

@@ -2,6 +2,7 @@ import string
 
 from django.core.validators import RegexValidator
 from django.db import models
+from django.db.models import Exists, OuterRef, Q
 from django.utils.crypto import get_random_string
 from django.utils.functional import cached_property
 from django.utils.translation import ugettext_lazy as _
@@ -90,6 +91,16 @@ class Organizer(LoggedModel):
             default=lambda: self.issued_gift_cards.exists() or self.gift_card_issuer_acceptance.exists()
         )
 
+    @property
+    def accepted_gift_cards(self):
+        from .giftcards import GiftCard, GiftCardAcceptance
+
+        return GiftCard.objects.annotate(
+            accepted=Exists(GiftCardAcceptance.objects.filter(issuer=OuterRef('issuer'), collector=self))
+        ).filter(
+            Q(issuer=self) | Q(accepted=True)
+        )
+
     def allow_delete(self):
         from . import Order, Invoice
         return (