Custom kwarg in Django rest framework

Question

Today I have 2 URLs

router.register(r'question_type', QuestionTypeViewSet)
router.register(r'question', QuestionViewSet)

But I need something like this

router.register(r'question_type', QuestionTypeViewSet)
router.register(r'question_type/question_type_pk/question', QuestionViewSet)

My viewsets

class QuestionTypeViewSet(viewsets.ModelViewSet):

   serializer_class = QuestionTypeSerializer
   queryset = QuestionType.objects.all()

What I wanna to do with QuestionViewSet

class QuestionViewSet(viewsets.ModelViewSet):

   serializer_class = QuestionSerializer

   def get_queryset(self):

       queryset = Question.objects.filter(
           question_type__id=self.kwargs['question_type_id'])

       return queryset

How should I make the question url?

This package may help? github.com/alanjds/drf-nested-routers — Iain Shelvington
– Iain Shelvington, Commented Mar 1, 2021 at 4:33

crazychukz · Accepted Answer · 2021-03-01 04:17:44Z

1

Going by this session of the documentation, you can achieve this by adding extra action to the QuestionViewSet viewset.

From the documentation here is how this r'question_type/{pk}/question' can be achieved

from rest_framework.decorators import action

.........

class QuestionViewSet(viewsets.ModelViewSet):
    """ your current code """
    
    @action(detail=True, methods=['post'])
    def question(self, request, pk=True):
        serializer = YourQuestionSerializer(data=request.data)
        if serializer.is_valid(): 
            """ your logic here """

answered Mar 1, 2021 at 4:17

crazychukz

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