Django AUTH_USER_MODEL 指的是还没有安装的模型

Django AUTH_USER_MODEL refers to model that has not been installed

我正在开发一个需要通过电子邮件或 phone 号码登录的 django 项目。这是我的 models.py 文件:

class NewUser(AbstractBaseUser, PermissionsMixin):

    email = models.EmailField(_('email address'), unique=True)
    username = models.CharField(max_length=150, blank=True, unique=True)
    first_name = models.CharField(max_length=150, blank=True)
    phone_regex = RegexValidator(regex =r'^\+?1?\d{9,14}$', message="Phone number must be in the format: '+999999999'. Upto 14 digita allowed.")
    phone = models.CharField(validators=[phone_regex], max_length=15, unique=True)
    first_login = models.BooleanField(default=False)
    start_date = models.DateTimeField(default=timezone.now)
    about = models.TextField(_(
        'about'), max_length=500, blank=True)
    is_staff = models.BooleanField(default=False)
    is_active = models.BooleanField(default=True)
    is_admin = models.BooleanField(default=False)
    
    
    #objects = CustomAccountManager()
    #objects = EmailOrPhoneModelBackend()

    USERNAME_FIELD = 'username'
    REQUIRED_FIELDS = []

    def __str__(self):
        return self.username
    
    def get_email_field_name(self):
        if self.email:
            return self.email
        else:
            return self.phone
    
    def has_perm(self, perm, obj=None):
        return True
    
    def has_module_perms(self, app_label):
        return True
    
    @property
    def is_active(self):
        return self.is_active
     
    @property
    def is_staff(self):
        return self.is_staff

    @property
    def is_admin(self):
        return self.is_admin

要同时使用电子邮件和 phone 号码进行身份验证,我创建了一个自定义身份验证文件 - backends.py

class EmailOrPhoneModelBackend(ModelBackend):

#This is a ModelBacked that allows authentication with either a username or an email address.
    
    def authenticate(self, username= None, password=None, **kwargs):
        
        if '@' in username:
            kwargs = {'email': username}
        elif re.search("^0?[5-9]{1}\d{9}$",username):   #optional
            kwargs = {'phone':username} 
        try:
            user = NewUser.objects.get(**kwargs)
            if user.check_password(password):
                return user
        except NewUser.DoesNotExist:
            return None

    def get_user(self, user_id): #username replaced with id
        try:
            return NewUser.objects.get(pk = user_id)
        except NewUser.DoesNotExist:
            return None

并且我已经相应地修改了我的设置:

AUTH_USER_MODEL = "adminUser.NewUser"
AUTHENTICATION_BACKENDS = ['adminUser.backends.EmailOrPhoneModelBackend',
                            'django.contrib.auth.backends.ModelBackend',]

但是,当我尝试进行迁移时出现以下错误:

AUTH_USER_MODEL refers to model 'adminUser.NewUser' that has not been installed

我也在 settings.py 中的 INSTALLED_APPS 列表中添加了应用程序 'adminUser'。我也回答了之前提出的类似问题,但其中 none 对我有所帮助。我不确定是什么导致了这个问题以及如何解决它。感谢您提前抽出时间。

下面是我遇到的错误的完整堆栈跟踪:

Traceback (most recent call last):
  File "C:\Users\DELL\Anaconda3\envs\myEnv\lib\site-packages\django\apps\config.py", line 178, in get_model
    return self.models[model_name.lower()]
KeyError: 'newuser'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\DELL\Anaconda3\envs\myEnv\lib\site-packages\django\contrib\auth\__init__.py", line 157, in get_user_model
    return django_apps.get_model(settings.AUTH_USER_MODEL, require_ready=False)
  File "C:\Users\DELL\Anaconda3\envs\myEnv\lib\site-packages\django\apps\registry.py", line 211, in get_model
    return app_config.get_model(model_name, require_ready=require_ready)
  File "C:\Users\DELL\Anaconda3\envs\myEnv\lib\site-packages\django\apps\config.py", line 180, in get_model
    raise LookupError(
LookupError: App 'adminUser' doesn't have a 'NewUser' model.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\DELL\Documents\AysleAdmin\adminPanel\manage.py", line 22, in <module>
    main()
  File "C:\Users\DELL\Documents\AysleAdmin\adminPanel\manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "C:\Users\DELL\Anaconda3\envs\myEnv\lib\site-packages\django\core\management\__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "C:\Users\DELL\Anaconda3\envs\myEnv\lib\site-packages\django\core\management\__init__.py", line 377, in execute
    django.setup()
  File "C:\Users\DELL\Anaconda3\envs\myEnv\lib\site-packages\django\__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Users\DELL\Anaconda3\envs\myEnv\lib\site-packages\django\apps\registry.py", line 114, in populate
    app_config.import_models()
  File "C:\Users\DELL\Anaconda3\envs\myEnv\lib\site-packages\django\apps\config.py", line 211, in import_models
    self.models_module = import_module(models_module_name)
  File "C:\Users\DELL\Anaconda3\envs\myEnv\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 790, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "C:\Users\DELL\Documents\AysleAdmin\adminPanel\adminUser\models.py", line 20, in <module>
    from .backends import EmailOrPhoneModelBackend
  File "C:\Users\DELL\Documents\AysleAdmin\adminPanel\adminUser\backends.py", line 1, in <module>
    from django.contrib.auth.backends import ModelBackend
  File "C:\Users\DELL\Anaconda3\envs\myEnv\lib\site-packages\django\contrib\auth\backends.py", line 5, in <module>
    UserModel = get_user_model()
  File "C:\Users\DELL\Anaconda3\envs\myEnv\lib\site-packages\django\contrib\auth\__init__.py", line 161, in get_user_model
    raise ImproperlyConfigured(
django.core.exceptions.ImproperlyConfigured: AUTH_USER_MODEL refers to model 'adminUser.NewUser' that has not been installed

在回溯中,您可以看到以下几行:

File "C:\Users\DELL\Documents\AysleAdmin\adminPanel\adminUser\models.py", line 20, in <module>
  from .backends import EmailOrPhoneModelBackend

这意味着您出于某种原因在 models.py 中导入了后端(这里不需要后端是没有意义的)。接下来在后端您还使用 NewUser 这意味着它也导入 NewUser,这实际上意味着两个文件都尝试导入另一个导致 circular 导入问题(最后你的模型并没有被加载)。

解决方法是从 models.py.

中删除行 from .backends import EmailOrPhoneModelBackend