DRF-为PATCH请求创建多个端点

Question

I would like to create multiple endpoints for PATCH request.

For eg.

class CityViewSet(viewsets.ModelViewSet):
    """
    API endpoint that allows city to be viewed or edited.
    """
    authentication_classes = (TokenAuthentication,)
    permission_classes = ()
    queryset = City.objects.filter(active=True)
    serializer_class = CitySerializer

class CitySerializer(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = City
        fields = ('id', 'name', 'is_metro', 'is_village', 'active')

    def update(self, instance, validated_data):
        for attr, value in validated_data.items():
            if not isinstance(value, (list,dict)):
                setattr(instance, attr, value)

        instance.save()
        return instance

urls.py

router = routers.DefaultRouter()
router.register(r'city', CityViewSet)

Can I create multiple routers which finally go to PATCH request of this viewset only? In the update method, based on the url, I will decide what to do.

Answer 1

You can register different url's for the same viewset, like:

router = routers.DefaultRouter()
router.register(r'city', CityViewSet)
router.register(r'town', CityViewSet.as_view({'patch':'partial_update'})

If you're using a browsable API and DRF is creating reverse urls, you will probably get the first ones there (in the example above - with 'city')

If you want only PATCH with the second link, then doing .as_view({'patch':'partial_update'}) will prevent from reaching it with other methods, as it will throw MethodNotAllowed if you will try to reach it with any other method.