scoped HyperlinkRelatedField

gistfile1.txt

class ScopedHyperlinkedRelatedField(serializers.HyperlinkedRelatedField):
    """ A subclass of the HyperlinkRelatedField which attempts to scope on provider/zone """
    def get_queryset(self):
        user = self.context['request'].user
        if user.is_superuser:
            queryset = self.queryset
        else:
            queryset = self.queryset.filter(zone__provider__groups__user=user)
        if isinstance(queryset, (QuerySet, Manager)):
            queryset = queryset.all()
        return queryset