python - Django 错误 : AttributeError at 'Manager' object has no attribute 'create_user'

Question

模型.py:

    from django.contrib.auth.models import AbstractBaseUser
    from django.contrib.auth.models import PermissionsMixin
    from django.contrib.auth.models import BaseUserManager

    class UserManager(BaseUserManager):
        # code
        def create_user(self, uid, pass):
            # code

    class user(AbstractBaseUser, PermissionsMixin):
        # code    
        objects = UserManager()    
        # code    

    class appUser(user):
    # code    

views.py

from projectname.app.models import appUser

def index_view(request):
        # code    
        appUser.objects.create_user(uid_variable, pass_variable)
        # code    

settings.py

#code
INSTALLED_APPS = (
    #code
    'projectname.app',
)
AUTH_USER_MODEL = 'app.appUser'
#code

当我尝试在 View 中调用创建用户方法时出现此异常。我做错了什么？

Answer 1

您的appUser 是user 的子类。如果user不是抽象基类，那么appUser就不会继承manager，需要重新声明。

class appUser(user):
    objects = UserManager()

来自 the docs :

Managers defined on non-abstract base classes are not inherited by child classes. If you want to reuse a manager from a non-abstract base, redeclare it explicitly on the child class. These sorts of managers are likely to be fairly specific to the class they are defined on, so inheriting them can often lead to unexpected results (particularly as far as the default manager goes). Therefore, they aren’t passed onto child classes.

拥有 appUser 模型子类 user 很复杂，您可能会遇到其他困难。如果可能的话，我会避免它，或者至少使 user 抽象。