def _add_qs(self, qs):
if isinstance(qs, ModelBase) and qs._meta.abstract:
for sub in get_sub_models(qs, direct=True):
self._add_qs(sub)
else:
qs = get_query_set(qs)
if qs.model in self.querysets_by_model:
model_qs = self.querysets_by_model[qs.model]
index = self.querysets.index(model_qs)
qs = qs | model_qs
self.querysets[index] = qs
else:
self.querysets.append(qs)
self.querysets_by_model[qs.model] = qs
def get_query_set(self):
if self.model._meta.abstract:
models = get_sub_models(self.model, abstract=False, direct=True)
return ObjectIdentity.objects.filter(type__in=[Type.objects.get_for_model(model) for model in models])
else:
return super(ObjectManager, self).get_query_set()