django rest framework create nested objects “Models” by POST

Question

I\'m trying POST a new a Nested Object, the problem is just create the \"top\" object (Playlist), but don\'t create the \"ChannelItem\"...

My Models:

Answer 1

If someone needs a quick-and-dirty solution for that, I came up with this one I'll be temporary using in a project:

class NestedManyToManyField(serializers.WritableField):
    def to_native(self, value):
        serializer = self.Meta.serializer(value.all(), many=True, context=self.context)
        return serializer.data
    def from_native(self, data):
        serializer = self.Meta.serializer(data=data, many=True, context=self.context)
        serializer.is_valid()
        serializer.save()
        return serializer.object
    class Meta:
        serializer = None

Then create your own subclass of NestedManyToManyField:

class TopicNestedSerializer(NestedManyToManyField):
    class Meta:
        serializer = MyOriginalSerializer

An example of MyOriginalSerializer:

class MyOriginalSerializer(serializers.ModelSerializer):
    class Meta:
        model = models.MyModel
        fields = ('id', 'title',)

This works fine for me so far. But be aware there are clean fixes coming:

• https://github.com/tomchristie/django-rest-framework/issues/960
• https://github.com/tomchristie/django-rest-framework/pull/817