python - Django 1.7 - 为定义添加或更改 related_name 参数

Question

你好，我正在尝试制作 Django 自定义用户模型，但出现这样的错误

    auth.User.groups: (fields.E304) Reverse accessor for 'User.groups' clashes with reverse accessor for 'UserProfile.groups'.
    HINT: Add or change a related_name argument to the definition for 'User.groups' or 'UserProfile.groups'.
auth.User.user_permissions: (fields.E304) Reverse accessor for 'User.user_permissions' clashes with reverse accessor for 'UserProfile.user_permissions'.
    HINT: Add or change a related_name argument to the definition for 'User.user_permissions' or 'UserProfile.user_permissions'.
kerajinan.Product.author: (fields.E300) Field defines a relation with model 'settings.AUTH_USER_MODEL', which is either not installed, or is abstract.
kerajinan.UserProfile.groups: (fields.E304) Reverse accessor for 'UserProfile.groups' clashes with reverse accessor for 'User.groups'.
    HINT: Add or change a related_name argument to the definition for 'UserProfile.groups' or 'User.groups'.
kerajinan.UserProfile.user_permissions: (fields.E304) Reverse accessor for 'UserProfile.user_permissions' clashes with reverse accessor for 'User.user_permissions'.
    HINT: Add or change a related_name argument to the definition for 'UserProfile.user_permissions' or 'User.user_permissions'.

我使用 django 1.7 这是 setting.py 的一部分，我的名字应用程序是 'kerajinan:

AUTH_USER_MODEl = 'kerajinan.UserProfile'

模型.py:

class Product(models.Model):
author          = models.ForeignKey('settings.AUTH_USER_MODEL')
userprofile     = models.ForeignKey('UserProfile')
title           = models.CharField(max_length=50)

def __str__(self):
    return self.title;
class MyUserManager(BaseUserManager):
    def create_user(self, username, email, password=None):
        if not email:
            raise ValueError('Users must have an email address')
        if not username:
            raise ValueError('Users must have a username')

        user = self.model(
            username = username,
            email    = self.normalize_email(email),
        )
        user.is_active  = True
        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_superuser(self, username, email, password):
        user = self.create_user(username=username,email=email, password=password)

        user.is_staff = True
        user.is_superuser = True
        user.save(using=self._db)
        return user 

class UserProfile(AbstractBaseUser, PermissionsMixin):

    alphanumeric = RegexValidator(r'^[0-9a-zA-Z]*$', message='Only alphanumeric characters are allowed.')
    username    = models.CharField(unique=True, max_length=20, validators=[alphanumeric])
    email       = models.EmailField(verbose_name='email address', unique=True, max_length=244)
    first_name  = models.CharField(max_length=30, null=True, blank=True)
    last_name   = models.CharField(max_length=50, null=True, blank=True)
    is_active   = models.BooleanField(default=True, null=False)
    is_staff    = models.BooleanField(default=False, null=False)


    # profile_image = models.ImageField(upload_to="uploads", blank=False, null=False, default="/static/images/defaultuserimage.jpg")

    objects = MyUserManager()

    USERNAME_FIELD  = 'email'
    REQUIRED_FIELDS = ['username']

    def get_full_name(self):
        fullname = self.first_name+" "+self.last_name
        return self.fullname

    def get_short_name(self):
        return self.username

    def __str__(self):
        return self.email

我在设置的类产品部分遇到错误。AUTH_USER_MODEL 这是错误:

  ERRORS:
kerajinan.Product.author: (fields.E300) Field defines a relation with model 'settings.AUTH_USER_MODEL', which is either not installed, or is abstract.

你能帮我解决这个错误吗？

Answer 1

您在设置名称中使用小写的 l。 Python 变量区分大小写，因此将其更改为大写 L:

AUTH_USER_MODEL = 'kerajinan.UserProfile'

更新:要创建与自定义用户模型的关系，您应该删除 FK 定义中的引号:

author = models.ForeignKey(settings.AUTH_USER_MODEL)