如何使用Django Rest批量更新子对象？

from rest_framework.views import APIView
from rest_framework.response import Response
from .serializers import ParentSerializer, ChildSerializer
from .models import Parent, Child

class ParentUpdateView(APIView):
    def put(self, request, parent_id):
        parent = Parent.objects.get(id=parent_id)
        serializer = ParentSerializer(parent, data=request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data)
        return Response(serializer.errors, status=400)

    def patch(self, request, parent_id):
        parent = Parent.objects.get(id=parent_id)
        serializer = ParentSerializer(parent, data=request.data, partial=True)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data)
        return Response(serializer.errors, status=400)

    def post(self, request, parent_id):
        parent = Parent.objects.get(id=parent_id)
        serializer = ParentSerializer(parent, data=request.data, partial=True)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data)
        return Response(serializer.errors, status=400)