Additionally filtering Django map by other criteria with viewsets.py if found in GET value

Using Django
15

So now I don’t understand where the filtering is done or how to remove this duplicated code. Is there something I’ve missed on a more fundamental level?

The filtering happens inside the filter_queryset method. The drf code is very opinionated and object oriented. The ReadOnlyModelViewSet is made up of two mixins. When you’re making a list request, it’s being handled by the ListModelMixin’s list method.

To extend the filtering behavior that already exists on the viewset, you can extend the filter_queryset method

def filter_queryset(self, queryset):
   queryset = super().filter_queryset(queryset)
   extra_field1 = self.request.query_params.get('extra_field1')
   if extra_field1:
      queryset = queryset.filter(extra_field1=extra_field1)
   return queryset

If you haven’t done so yet, take the time to go through the django rest framework tutorial

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