如何在Django RestFramework中处理PUT请求

from rest_framework import serializers

class MyModelSerializer(serializers.ModelSerializer):
    class Meta:
        model = MyModel
        fields = '__all__'

from rest_framework.views import APIView
from rest_framework.response import Response
from .serializers import MyModelSerializer
from .models import MyModel

class MyModelView(APIView):
    def put(self, request, pk):
        instance = MyModel.objects.get(pk=pk)
        serializer = MyModelSerializer(instance, data=request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data)
        return Response(serializer.errors, status=400)

from django.urls import path
from .views import MyModelView

urlpatterns = [
    path('mymodel/<int:pk>/', MyModelView.as_view(), name='mymodel-detail'),
]