django-orchestra/orchestra/contrib/saas/fields.py

16 lines
558 B
Python

from django.contrib.contenttypes.fields import GenericRelation
from django.db import DEFAULT_DB_ALIAS
class VirtualDatabaseRelation(GenericRelation):
""" Delete related databases if any """
def bulk_related_objects(self, objs, using=DEFAULT_DB_ALIAS):
pks = []
for obj in objs:
if obj.database_id:
pks.append(obj.database_id)
if not pks:
return []
# TODO renamed to self.remote_field in django 1.8
return self.rel.to._base_manager.db_manager(using).filter(pk__in=pks)