如何从同一模型序列化外键

Question

I have this model:

class Player(models.Model):
    name = models.CharField(max_length=100)
    partner = models.ForeignKey('self', blank=True, null=True)

And in my serializer I have this:

class PlayerSerializer(serializers.ModelSerializer):
    partner = PlayerSerializer()
    class Meta:
        model = Player
        fields = ('id', 'name', 'partner')

But of course this returns an error saying PlayerSerializer is not defined.

How do I serialize the foreign key.

I am using Django with REST API. Django 1.10 and python 3.6.3

Answer 1

Try to use depth option instead:

class PlayerSerializer(serializers.ModelSerializer):
    class Meta:
        model = Player
        fields = ('id', 'name', 'partner')
        depth = 1

Answer 2

Just add depth = 1 in Meta, as below

class PlayerSerializer(serializers.ModelSerializer):
    class Meta:
        model = Player
        fields = ('id', 'name', 'partner')
        depth = 1