use*_*538 6 django django-models django-authentication django-rest-framework django-rest-auth
我正在使用 djangorest-auth来allauth验证用户身份。成功注册和电子邮件验证后，我实现了一个登录视图，其子类rest-auth.views.LoginView如下所示：
class ThLoginView(LoginView):
def get(self, request):
form = CustomUserLoginForm()
return render(request, "users/login.html", context={"form": form})
用我自己的形式：
class CustomUserLoginForm(AuthenticationForm):
class Meta:
model = CustomUser
fields = ('email',)
问题是当我登录时出现以下错误：
DoesNotExist at /users/login/
EmailAddress matching query does not exist.
我改变的另一件重要的事情是我使用电子邮件作为注册/登录而不是用户名：
ACCOUNT_AUTHENTICATION_METHOD = 'email'
ACCOUNT_EMAIL_REQUIRED = True
ACCOUNT_USERNAME_REQUIRED = False
ACCOUNT_EMAIL_VERIFICATION = "mandatory"
ACCOUNT_UNIQUE_EMAIL = True
我的user模型AbstractBaseUser像这样覆盖：
class CustomUser(AbstractBaseUser, PermissionsMixin):
email = models.EmailField(max_length=254, unique=True)
name = models.CharField(max_length=254, null=True, blank=True)
username = models.CharField(max_length=254, blank=True)
is_staff = models.BooleanField(default=False)
is_superuser = models.BooleanField(default=False)
is_active = models.BooleanField(default=True)
last_login = models.DateTimeField(null=True, blank=True)
date_joined = models.DateTimeField(auto_now_add=True)
USERNAME_FIELD = 'email'
EMAIL_FIELD = 'email'
REQUIRED_FIELDS = []
objects = UserManager()
def __str__(self):
return self.email
该错误似乎表明搜索算法没有在正确的位置查找电子邮件。用户的电子邮件肯定已输入，因为我可以在管理页面中对其进行监督。为什么会出现这个错误？
注意：如果我使用 REST 可浏览 API，因此它不会链接到我的表单和模板，也会发生此错误。
Environment:
Request Method: POST
Request URL: http://127.0.0.1:8000/users/login/
Django Version: 2.2.5
Python Version: 3.7.3
Installed Applications:
['users.apps.UsersConfig',
'home.apps.HomeConfig',
'main.apps.MainConfig',
'rest_framework',
'rest_framework.authtoken',
'rest_auth',
'rest_auth.registration',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.sites',
'allauth',
'allauth.account',
'allauth.socialaccount.providers.github',
'allauth.socialaccount',
'allauth.socialaccount.providers.facebook']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback:
File "/Users/ba/venv/project/lib/python3.7/site-packages/django/core/handlers/exception.py" in inner
34. response = get_response(request)
File "/Users/ba/venv/project/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
115. response = self.process_exception_by_middleware(e, request)
File "/Users/ba/venv/project/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
113. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Users/ba/venv/project/lib/python3.7/site-packages/django/views/decorators/csrf.py" in wrapped_view
54. return view_func(*args, **kwargs)
File "/Users/ba/venv/project/lib/python3.7/site-packages/django/views/generic/base.py" in view
71. return self.dispatch(request, *args, **kwargs)
File "/Users/ba/venv/project/lib/python3.7/site-packages/django/utils/decorators.py" in _wrapper
45. return bound_method(*args, **kwargs)
File "/Users/ba/venv/project/lib/python3.7/site-packages/django/views/decorators/debug.py" in sensitive_post_parameters_wrapper
76. return view(request, *args, **kwargs)
File "/Users/ba/venv/project/lib/python3.7/site-packages/rest_auth/views.py" in dispatch
49. return super(LoginView, self).dispatch(*args, **kwargs)
File "/Users/ba/venv/project/lib/python3.7/site-packages/rest_framework/views.py" in dispatch
505. response = self.handle_exception(exc)
File "/Users/ba/venv/project/lib/python3.7/site-packages/rest_framework/views.py" in handle_exception
465. self.raise_uncaught_exception(exc)
File "/Users/ba/venv/project/lib/python3.7/site-packages/rest_framework/views.py" in raise_uncaught_exception
476. raise exc
File "/Users/ba/venv/project/lib/python3.7/site-packages/rest_framework/views.py" in dispatch
502. response = handler(request, *args, **kwargs)
File "/Users/ba/venv/project/lib/python3.7/site-packages/rest_auth/views.py" in post
103. self.serializer.is_valid(raise_exception=True)
File "/Users/ba/venv/project/lib/python3.7/site-packages/rest_framework/serializers.py" in is_valid
235. self._validated_data = self.run_validation(self.initial_data)
File "/Users/ba/venv/project/lib/python3.7/site-packages/rest_framework/serializers.py" in run_validation
433. value = self.validate(value)
File "/Users/ba/venv/project/lib/python3.7/site-packages/rest_auth/serializers.py" in validate
108. email_address = user.emailaddress_set.get(email=user.email)
File "/Users/ba/venv/project/lib/python3.7/site-packages/django/db/models/manager.py" in manager_method
82. return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/Users/ba/venv/project/lib/python3.7/site-packages/django/db/models/query.py" in get
408. self.model._meta.object_name
Exception Type: DoesNotExist at /users/login/
Exception Value: EmailAddress matching query does not exist.
您收到此错误的原因是数据库表帐户电子邮件地址中不存在您用于登录的电子邮件地址。Dj-rest-auth或Django-rest-auth包为电子邮件地址创建一个表来跟踪经过验证的用户。
manage.py当您尝试使用通过命令（例如 ）创建的用户登录时，可能会遇到此错误manage.py createsuperuser。基本上，从 django 管理控制台或管理命令创建的用户不会在电子邮件地址表中创建条目。
要修复此错误，您可能需要在管理控制台下创建一个新条目，或者从管理控制台中Accounts> Email Addresses删除用户，然后使用 django-rest-auth API 端点再次注册（这将自动在电子邮件地址表中添加此条目）。Authentication and authorization> Users
当我处理自定义用户模型时，我遇到了同样的问题。原因是我首先使用默认的 django 用户模型在控制台上运行python manage.py makemigrations并运行。python manage.py migrate后来，我实现了自定义用户模型并进行了迁移。\nDjango文档详细描述了这一挑战：
\n\n在创建数据库表后更改 AUTH_USER_MODEL 会变得更加困难，因为它会影响外键和多对多关系等。
\n此更改不能自动完成，需要手动修复架构、从旧用户表中移动数据，并可能手动重新应用一些迁移。有关步骤的概述，请参阅#25313。
\n
如果可以的话，我建议从一个新的数据库开始。这就是我解决该问题的方法。否则尝试按照本教程或本教程进行操作
\n