Question

我有一个CustomUser，它将AbstractUser扩展如下

class CustomUser(AbstractUser):

    USERTYPE_CHOICES = [(1,"A"),(2,"B"),(3,"C")]
    usertype = models.IntegerField(choices = USERTYPE_CHOICES, default = 1)

我的settings.py

中包含以下几行

INSTALLED_APPS = [
...
'login_register_service_hub.apps.LoginRegisterServiceHubConfig',
...
AUTH_USER_MODEL = 'login_register_service_hub.CustomUser'

一切正常，但一切正常：

我正在尝试实现自定义身份验证后端，并且通过添加以下内容

from django.contrib.auth.backends import ModelBackend
from django.contrib.auth import get_user_model


#Check for the is_active property
class EmailBackend(ModelBackend):
    def authenticate(self, request, username=None, password=None, **kwargs):
        UserModel = get_user_model()
        try:
            user = UserModel.objects.get(email=username)
        except UserModel.DoesNotExist:
            return None
        else:
            if user.check_password(password):
                return user
        return None


    def get_user(self, user_id):
        UserModel = get_user_model()
        try:
            return UserModel.objects.get(pk=user_id)
        except UserModel.DoesNotExist:
            return None

我用以下内容更新settings.py：

AUTHENTICATION_BACKENDS = {'login_register_service_hub.EmailBackend',}

但是，只要我跑步

 python3 manage.py runserver

我收到以下错误

"AUTH_USER_MODEL refers to model '%s' that has not been installed" % settings.AUTH_USER_MODEL django.core.exceptions.ImproperlyConfigured: AUTH_USER_MODEL refers to model 'login_register_service_hub.CustomUser' that has not been installed

有趣的是，仅当我导入ModelBackend时命令才会失败（即使我注释掉EmailBackend定义也是如此）

Answer 1

您通常不要在__init__.py应用中导入内容。将您的后端移至login_register_service_hub/backends.py，然后更新您的设置

AUTHENTICATION_BACKENDS = ['login_register_service_hub.backends.EmailBackend']

AUTH_USER_MODEL引用尚未安装的模型“

1 个答案: