Django繼承AbstractUser和AbstractBaseUser時遷移問題

(DRF) ale@ubuntu:~/project/Aley$ python manage.py makemigrations users
Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    main()
  File "manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/core/management/__init__.py", line 395, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/core/management/base.py", line 330, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/core/management/base.py", line 368, in execute
    self.check()
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/core/management/base.py", line 396, in check
    databases=databases,
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/core/checks/registry.py", line 70, in run_checks
    new_errors = check(app_configs=app_configs, databases=databases)
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/contrib/auth/checks.py", line 39, in check_user_model
    if cls.USERNAME_FIELD in cls.REQUIRED_FIELDS:
AttributeError: type object 'User' has no attribute 'USERNAME_FIELD'

當Django遷移模型時報304錯誤，解決方法：

? 當你的繼承AbstractUser類時，會使用django的用戶認證，需要在專案的setting.py 中加入AUTH_USER_MODEL="app.model"

# 用戶認證
AUTH_USER_MODEL = "users.User"

——————————————————————————————————————————————————

(DRF) ale@ubuntu:~/project/Aley$ python manage.py makemigrations users
Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    main()
  File "manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/core/management/__init__.py", line 395, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/core/management/base.py", line 330, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/core/management/base.py", line 368, in execute
    self.check()
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/core/management/base.py", line 396, in check
    databases=databases,
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/core/checks/registry.py", line 70, in run_checks
    new_errors = check(app_configs=app_configs, databases=databases)
  File "/home/ale/Envs/DRF/lib/python3.6/site-packages/django/contrib/auth/checks.py", line 39, in check_user_model
    if cls.USERNAME_FIELD in cls.REQUIRED_FIELDS:
AttributeError: type object 'User' has no attribute 'USERNAME_FIELD'

遷移模型時報 has no attribute 'USERNAME_FIELD'錯誤時時，是因為模型繼承自AbstractBaseUser,只需在模型中添加 USERNAME_FIELD= "username"

class User(BaseModel, AbstractBaseUser):
    username = models.CharField(max_length=128, unique=True, verbose_name="用戶名")
    phone = models.IntegerField(verbose_name="手機號")
    email = models.CharField(max_length=128, verbose_name="郵箱")
    USERNAME_FIELD = 'username' # 加上這句代碼

    def __str__(self):
        return self.username

    class Meta:
        db_table = "aley_user"
        verbose_name = "用戶"
        verbose_name_plural = verbose_name

標籤：Python

上一篇：使用 Python 來簡單的動態模擬一下太陽系的運轉

下一篇：MYSQL——表約束條件，表之間的三種關系