django-rest-auth 错误 - save() 采用 1 个位置参数，但给出了 2 个

Question

我将 django-rest-auth 与自定义用户模型、注册 View 和序列化程序一起使用。我想要实现的是电子邮件登录而不是用户名。 api View 显示正确，但是当我发布时，出现错误:

TypeError at /rest-auth/registration/
save() takes 1 positional argument but 2 were given

这是追溯:http://dpaste.com/2FR3DZY

序列化器.py

class CustomUserSerializer(serializers.ModelSerializer):
"""Serializer for User objects."""

    class Meta:
        model = models.User
        fields = ('id', 'email', 'name', 'password')
        extra_kwargs ={'password': {'write_only': True}}

    def create(self, validated_data):
        """Create and return a new User."""

        user = models.User(
            email=validated_data['email'],
            name=validated_data['name'] 
        )

        user.set_password(validated_data['password'])
        user.save()

        return user

View .py

class CustomRegistrationsView(RegisterView):
    serializer_class = CustomUserSerializer

网址.py

path('rest-auth/registration/', CustomRegistrationsView.as_view(), name='rest_register'),   
path('rest-auth/', include('rest_auth.urls')),

模型.py

class UserManager(BaseUserManager):
"""Helps Django work with our custom user model."""

    def create_user(self, email, name, password=None):
        """Creates a new user object."""

        if not email:
            raise ValueError('Users must have an email address.')

        email = self.normalize_email(email)
        user = self.model(email=email, name=name)

        user.set_password(password)
        user.save(using=self._db)

        return user

    def create_superuser(self, email, name, password):
        """Creates and saves a new superuser with given details."""

        user = self.create_user(email, name, password)

        user.is_superuser = True
        user.is_staff = True

        user.save(using=self._db)

        return user

class User(AbstractBaseUser, PermissionsMixin):
    """Represents a "user" inside our system."""

    email = models.EmailField(max_length=255, unique=True)
    name = models.CharField(max_length=255)
    is_active = models.BooleanField(default=True)
    is_staff = models.BooleanField(default=False)

    objects = UserManager()

    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = ['name']

    def get_full_name(self):
        """Used to get a users full name."""

        return self.name

    def get_short_name(self):
        """Used to get a users short name."""

        return self.name

    def __str__(self):
        """Django uses this when it needs to convert the object to a string"""

        return self.email

谁能给个建议？

Answer 1

因为您的自定义注册 View 继承自 RegisterView，RegisterView 中定义的perform_create 方法将使用基于请求对象的请求对象调用序列化程序的保存方法implementation由于您的序列化程序继承自 ModelSerializer，因此保存方法不采用任何位置参数，因此会出现错误。

CustomUserSerializer 需要定义一个将请求对象作为参数的保存方法。在下面勾选此免除 django-rest-auth configuration

The custom REGISTER_SERIALIZER must define a def save(self, request) method that returns a user model instance.

我建议您查看 implementation默认的 REGISTER_SERIALIZER 将指导您的自定义序列化程序的外观。