python - django.core.exceptions.FieldDoesNotExist : User has no field named 'username'

Question

我正在尝试自定义 Django 的 AbstractUser。当我尝试将 username 重置为 None 时，出现以下异常:

"django.core.exceptions.FieldDoesNotExist: User has no field named 'username'".

这是我的代码:

class UserManager(BaseUserManager):
    use_in_migrations = True

    def _create_user(self, email, password, **extra_fields):
        if not email:
            raise ValueError("L'adresse e-mail donnée doit etre definie")
        email = self.normalize_email(email)
        user = self.model(email=email, **extra_fields)
        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_user(self, email, password, **extra_fields):
        extra_fields.setdefault("is_staff", False)
        extra_fields.setdefault("is_superuser", False)
        return self._create_user(email, password, **extra_fields)

    def create_superuser(self, email, password, **extra_fields):
        extra_fields.setdefault("is_staff", True)
        extra_fields.setdefault("is_superuser", True)

        if extra_fields.get("is_staff") is not True:
            raise ValueError("Superuser must have is_staff=True")
        if extra_fields.get("is_superuser") is not True:
            raise ValueError("Superuser must have is_superuser=True")
        return self._create_user(email, password, **extra_fields)


class User(AbstractUser):
    username = None
    email = models.EmailField('email adress', unique=True)
    telephone = models.CharField(max_length=20)
    REQUIRED_FIELDS = []

我该怎么做才能解决这个问题？

Answer 1

如果您在项目中使用 django-allauth，这也可能导致。要解决此问题，您需要在 settings.py 中将 ACCOUNT_USER_MODEL_USERNAME_FIELD 定义为 None。引用这个question和 allauth documentation获取更多信息。

ACCOUNT_USER_MODEL_USERNAME_FIELD = None