def delete(self, *args, **kwargs):
"""
Handle the cleanup of old custom field data when a CustomField is deleted.
"""
content_types = set(self.content_types.values_list("pk", flat=True))
super().delete(*args, **kwargs)
delete_custom_field_data.delay(self.name, content_types)
def handle_cf_removed_obj_types(instance, action, pk_set, **kwargs):
"""
Handle the cleanup of old custom field data when a CustomField is removed from one or more ContentTypes.
"""
if action == "post_remove":
# Existing content types have been removed from the custom field, delete their data
delete_custom_field_data.delay(instance.name, pk_set)
elif action == "post_add":
# New content types have been added to the custom field, provision them
provision_field.delay(instance.pk, pk_set)