Support multiple possible fields that indicate user ownership

bookwyrm/models/fields.py

@@ -226,7 +226,8 @@ class PrivacyField(ActivitypubFieldMixin, models.CharField):
         cc = data.cc
 
         # we need to figure out who this is to get their followers link
-        user = activitypub.resolve_remote_id(data.attributedTo, model="User")
+        user_field = "attributedTo" if hasattr(data, "attributedTo") else "owner"
+        user = activitypub.resolve_remote_id(getattr(data, user_field), model="User")
 
         if to == [self.public]:
             setattr(instance, self.name, "public")

bookwyrm/tests/models/test_user_model.py

@@ -11,6 +11,7 @@ from bookwyrm.settings import USE_HTTPS, DOMAIN
 # pylint: disable=missing-function-docstring
 class User(TestCase):
     protocol = "https://" if USE_HTTPS else "http://"
+
     def setUp(self):
         with patch("bookwyrm.suggested_users.rerank_suggestions_task.delay"):
             self.user = models.User.objects.create_user(