python - Django 重命名/重构自定义用户模型
问题描述
我有一个自定义用户模型:class CustomUser(AbstractUser):
已经迁移并填充了一些记录。我想将其重命名CustomUser
为MyUserModel
. 在 Pycharm 中,我右键单击名称并选择refactor
-rename
所以对这个模型的每个引用也被重命名。
然后我跑了python3 manage.py makemigrations
,这给了我以下错误:
"AUTH_USER_MODEL refers to model '%s' that has not been installed" % settings.AUTH_USER_MODEL
所以我去了myproject.settings
并将其更改AUTH_USER_MODEL
为MyUserModel
.
AUTH_USER_MODEL = 'users.MyUserModel'
然后makemigrations
工作。当我查看迁移文件时,它看起来像这样:
class Migration(migrations.Migration):
dependencies = [
('auth', '0011_update_proxy_permissions'),
('users', '0002_auto_20190916_0658'),
]
operations = [
migrations.CreateModel(
name='MyUserModel',
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')),
('is_superuser', models.BooleanField(default=False, help_text='Designates that this user has all permissions without explicitly assigning them.', verbose_name='superuser status')),
('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, max_length=30, verbose_name='first name')),
('last_name', models.CharField(blank=True, max_length=150, verbose_name='last name')),
('email', models.EmailField(blank=True, max_length=254, verbose_name='email address')),
('is_staff', models.BooleanField(default=False, help_text='Designates whether the user can log into this admin site.', verbose_name='staff status')),
('is_active', models.BooleanField(default=True, help_text='Designates whether this user should be treated as active. Unselect this instead of deleting accounts.', verbose_name='active')),
('date_joined', models.DateTimeField(default=django.utils.timezone.now, verbose_name='date joined')),
('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', models.ManyToManyField(blank=True, help_text='Specific permissions for this user.', related_name='user_set', related_query_name='user', to='auth.Permission', verbose_name='user permissions')),
],
options={
'verbose_name': 'user',
'verbose_name_plural': 'users',
'abstract': False,
},
managers=[
('objects', django.contrib.auth.models.UserManager()),
],
),
migrations.DeleteModel(
name='CustomUser',
),
]
我猜迁移管理器没有检测到重命名,但正在创建新表。我不介意,因为我还没有重要数据。
当我然后运行python3 manage.py migrate
时发生以下错误:
ValueError: The field account.EmailAddress.user was declared with a lazy reference to 'users.myusermodel', but app 'users' doesn't provide model 'myusermodel'.
The field admin.LogEntry.user was declared with a lazy reference to 'users.myusermodel', but app 'users' doesn't provide model 'myusermodel'.
The field authtoken.Token.user was declared with a lazy reference to 'users.myusermodel', but app 'users' doesn't provide model 'myusermodel'.
The field socialaccount.SocialAccount.user was declared with a lazy reference to 'users.myusermodel', but app 'users' doesn't provide model 'myusermodel'.
为什么会这样?我还尝试了迁移,RenameModel
而不是创建新表并删除旧表。仍然得到同样的错误。
解决方案
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