Django Rest-Framework nested serializer order

Question

Is there a way to order a nested serializer _set, for example order by pk or time-stamp.

So basically order song_set

Answer 1

Old thread, but because it's still popping up on Google I want to share my answer as well. Try overwriting the Serializer.to_representation method. Now you can basically do whatever you want, including customising the sorting of your response. In your case:

class AlbumSerializer(HyperlinkedModelSerializer):
    song_set = SongListSerializer(many=True, read_only=True)
    class Meta:
        model = Album
        fields = [
            'pk',
            'timestamp',
            'song_set'
        ]

    def to_representation(self, instance):
        response = super().to_representation(instance)
        response["song_set"] = sorted(response["song_set"], key=lambda x: x["timestamp"])
        return response