Валидация удаления. ModelViewSet

from rest_framework.response import Response
from django.db.models import RestrictedError
from rest_framework import status

class HallViewSet(viewsets.ModelViewSet):
...
...
    def destroy(self, request, *args, **kwargs):
        try:
            instance = self.get_object()
            self.perform_destroy(instance)
        except RestrictedError:
            content = {'status': 'Невозможно удалить выбранный зал'}
            return Response(content, status=status.HTTP_404_NOT_FOUND)
        return Response(status=status.HTTP_204_NO_CONTENT)