问题描述
我编写了一个没有用户名的自定义用户模型。它仍然作为主键出现在迁移中,并在添加新用户时抛出唯一约束错误。
这是我的用户模型经理:
class UserManager(BaseUserManager):
def create_user(self,password,email=None,phone=None,**extra_fields):
if not email and not phone:
raise ValueError("User must have an email address or phone number")
if email:
email = self.normalize_email(email)
user = self.model(email=email,**extra_fields)
elif phone:
user = self.model(phone=phone,**extra_fields)
user.set_password(password)
user.save()
return user
def create_superuser(self,email,password):
user = self.model(
email=self.normalize_email(email),is_staff=True,is_admin=True,is_superuser=True,)
user.set_password(password)
user.save()
return user
这是我的用户模型:
class User(AbstractUser):
email = models.EmailField(unique=True,verbose_name='email address',max_length=255,null=True
)
phone = models.CharField(unique=True,verbose_name='phone number',max_length=10,null=True
)
name = models.CharField(max_length=300,null=True)
profile_pic = models.ImageField(null=True,blank=True)
is_active = models.BooleanField(default=True)
is_staff = models.BooleanField(default=False)
is_admin = models.BooleanField(default=False)
is_superuser = models.BooleanField(default=False)
USERNAME_FIELD = 'email'
required_FIELDS = []
objects = UserManager()
def __str__(self):
return str(self.email)
def has_perm(self,perm,obj=None):
"Does the user have a specific permission?"
return True
def has_module_perm(self,app_label):
"Does the user have permissions to view the app `app_label`?"
return True
现在,迁移:
migrations.CreateModel(
name='User',fields=[
('id',models.AutoField(auto_created=True,primary_key=True,serialize=False,verbose_name='ID')),('password',models.CharField(max_length=128,verbose_name='password')),('last_login',models.DateTimeField(blank=True,null=True,verbose_name='last login')),('username',models.CharField(error_messages={'unique': 'A user with that username already exists.'},help_text='required. 150 characters or fewer. Letters,digits and @/./+/-/_ only.',max_length=150,unique=True,validators=[django.contrib.auth.validators.UnicodeUsernameValidator()],verbose_name='username')),('first_name',models.CharField(blank=True,verbose_name='first name')),('last_name',verbose_name='last name')),('date_joined',models.DateTimeField(default=django.utils.timezone.Now,verbose_name='date joined')),('email',models.EmailField(max_length=255,verbose_name='email address')),('phone',models.CharField(max_length=10,verbose_name='phone number')),('name',models.CharField(max_length=300,null=True)),('profile_pic',models.ImageField(blank=True,upload_to='')),('is_active',models.BooleanField(default=True)),('is_staff',models.BooleanField(default=False)),('is_admin',('is_superuser',('groups',models.ManyToManyField(blank=True,help_text='The groups this user belongs to. A user will get all permissions granted to each of their groups.',related_name='user_set',related_query_name='user',to='auth.Group',verbose_name='groups')),('user_permissions',help_text='Specific permissions for this user.',to='auth.Permission',verbose_name='user permissions')),],
哇,这出乎意料。现在因为这里有用户名,这是唯一约束。我不能添加超过 1 个用户名为空的用户,因为我只提供电子邮件或电话。
解决方法
您没有编写没有用户名的自定义用户,因为 AbstractUser 确实实现了具有管理员权限的全功能用户模型。作为documented:
AbstractUser 提供了默认用户的完整实现 一个抽象模型。
您应该将 AbstractBaseUser 扩展为 documented