def get_events_by_location(self, request, app_label, model, pk, extra_context=None):
try:
- ct = ContentType.objects.get(app_label=app_label, model=model)
+ ct = ContentType.objects.get_by_natural_key(app_label, model)
location = ct.model_class()._default_manager.get(pk=pk)
except ObjectDoesNotExist:
raise Http404