如何通过 django rest api 中的一个序列化器发布多个模型数据

我有两个模型，Contact and User:

class Contact(models.Model):
    name = models.CharField(max_length=50, blank=True)
    status = models.BooleanField(default=False)

class User(models.Model):
    username = models.CharField(max_length=50, blank=True)
    password = models.CharField(max_length=50, blank=True)
    contact_id = models.ForeignKey(Contact, on_delete=models.CASCADE, blank=True, null=True)

对于这两个模型，我有两个序列化器类：

class ContactSerializerModel(serializers.ModelSerializer):
    class Meta:
        model = Contact
        fields = ('name', 'status')

class UserSerializerModel(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ('username', 'password','contact_id')

我想设计一个序列化器类，它需要name, username, password, and status字段。我想将它们作为键值对发布。第一的name and status值保存在Contact然后模型Contact model id saves username and password in User桌子。如何设计 Django Rest API 中的序列化器类？

你需要覆盖create里面的方法UserSerializerModel:

class UserSerializerModel(serializers.ModelSerializer):
    contact_id = ContactSerializerModel()
    class Meta:
        model = User
        fields = (
          'username',
          'password',
          'contact_id'
        )

    def create(self, validated_data):
        contact_data = validated_data.pop('contact_id')  
        contact = Contact.objects.create(**contact_data)
        user = User.objects.create(contact_id=contact, **validated_data)
        return user

查看具体信息here http://www.django-rest-framework.org/api-guide/relations/#writable-nested-serializers.