带有外键的Django序列化程序不工作

我想为我的模型创建一个ListCreateView。 这是模型-

from django.db import models

from training_service.models.advertiser import Advertiser

class Config(models.Model):
    CONFIG_TYPE_CHOICES = (
        ('DATA_DESCRIPTOR', 'DATA_DESCRIPTOR'),
        ('DATAFETCH', 'DATAFETCH'),
        ('BATCHSYSTEM', 'BATCHSYSTEM'),
        ('SPARKSYSTEM', 'SPARKSYSTEM')
    )

    id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=100)
    config_type = models.CharField(max_length=100,
                                   choices=CONFIG_TYPE_CHOICES,
                                   blank=False)
    default_value = models.CharField(max_length=1000)

    class Meta:
        db_table = 'config'

    def __unicode__(self):
        return str(self.name)

class AdvertiserConfig(models.Model):
    advertiser_id = models.ForeignKey(
        Advertiser, to_field="advertiser_id", db_column="advertiser_id", on_delete=models.DO_NOTHING)
    config_id = models.ForeignKey(Config, on_delete=models.CASCADE)
    value = models.CharField(max_length=1000)

    class Meta:
        db_table = 'advertiser_config'

    def __unicode__(self):
        return str(self.name)

下面是模型的序列化程序-

class ConfigSerializer(serializers.ModelSerializer):
    class Meta:
        model = Config
        fields = ('name', 'config_type', 'value_type', 'default_value')

class AdvertiserConfigSerializer(serializers.ModelSerializer):
    config_name = serializers.PrimaryKeyRelatedField(read_only=True, many=True)
    class Meta:
        model = AdvertiserConfig
        fields = ('advertiser_id', 'config_name', 'value')

但当我在广告客户配置上执行get-on时,这不起作用。我在响应中没有得到配置名称。不会引发错误。

知道这里怎么了吗? 另外,我如何为广告客户配置创建一个?