serializers.py 文件源码

def to_representation(self, instance):
        data = super().to_representation(instance)
        moderators = UserWithMailSerializer(
            instance=instance.moderators.order_by(Lower('username')).all(),
            many=True,
            allow_empty=True,
        )
        participants = UserWithMailSerializer(
            instance=instance.participants.order_by(Lower('username')).all(),
            many=True,
            allow_empty=True,
        )
        data['moderators'] = moderators.data
        data['participants'] = participants.data

        return data