python3とdjangoのweb作成

管理者アカウントを作るときにエラーが出ます
usernameを打つところまでは行きますがusernameを打つとエラーが出ます

error
1AttributeError: 'Manager' object has no attribute 'get_by_natural_key'

python
1from django.db import models
2from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
3from django.contrib.auth.models import PermissionsMixin
4from django.db import models
5from django.utils import timezone
6from django.utils.translation import gettext_lazy as _
7
8
9class User(AbstractBaseUser, PermissionsMixin):
10    username = models.CharField(max_length=25, unique=True)
11    email = models.EmailField(unique=True)
12    icon = models.ImageField(blank=True, null=True)
13    introduction = models.CharField(max_length=75, blank=True, null=True)
14    followers = models.ManyToManyField('self', blank=True, symmetrical=False)
15    is_staff = models.BooleanField(
16        _('staff status'),
17        default=False,
18        help_text=_('Designates whether the user can log into this admin site.'),
19    )
20    is_active = models.BooleanField(
21        _('active'),
22        default=True,
23        help_text=_(
24            'Designates whether this user should be treated as active. '
25            'Unselect this instead of deleting accounts.'
26        ),
27    )
28    date_joined = models.DateTimeField(default=timezone.now)
29    
30    objects = 'UserManager()'
31    
32    EMAIL_FIELD = 'email'
33    USERNAME_FIELD = 'username'
34    REQUIRED_FIELDS = ['email']
35
36    class Meta:
37        verbose_name = _('user')
38        verbose_name_plural = _('users')
39class UserManager(BaseUserManager):
40
41    use_in_migrations = True
42
43    def _create_user(self, username, email, password, **extra_fields):
44
45        if not username:
46            raise ValueError('The given username must be set')
47
48        if not email:
49            raise ValueError('The given email must be set')
50
51        user = self.model(username=self.model.normalize_username(username), email=self.normalize_email(email), **extra_fields)
52        user.set_password(password)
53        user.save(using=self._db)
54        return user
55
56    def create_user(self, username, email=None, password=None, **extra_fields):
57        extra_fields.setdefault('is_staff', False)
58        extra_fields.setdefault('is_superuser', False)
59        return self._create_user(username, email, password, **extra_fields)
60
61    def create_superuser(self, username, email, password, **extra_fields):
62        extra_fields.setdefault('is_staff', True)
63        extra_fields.setdefault('is_superuser', True)
64
65        if extra_fields.get('is_staff') is not True:
66            raise ValueError('Superuser must have is_staff=True')
67
68        if extra_fields.get('is_superuser') is not True:
69            raise ValueError('Superuser must have is_superuser=True')
70
71        return self._create_user(username, email, password, **extra_fields)
72

参考

yamap55

2021/09/21 06:34

1. 「管理者アカウントを作るときにエラーが出ます」っとありますが、どういう操作で管理者アカウントを作成しようとしたのでしょうか？ 2. 「usernameを打つところまでは行きますがusernameを打つとエラーが出ます」とあります 2-1. usernameを打つところとはどこでしょうか？ 2-2. usernameを打つとどこにエラーが出るのでしょうか？