Django内置User表的扩展

查找当前的 User Use Django’s Tools for Finding the User Model

# Stock user model definition
>>> from django.contrib.auth import get_user_model
>>> get_user_model()
<class django.contrib.auth.models.User>

# When the project has a custom user model definition
>>> from django.contrib.auth import get_user_model
>>> get_user_model()
<class profiles.models.UserProfile>

• 使用 settings.AUTH_USER_MODEL 增加 User外键

from django.conf import settings
from django.db import models

class IceCreamStore(models.Model):
    owner = models.OneToOneField(settings.AUTH_USER_MODEL)
    title = models.CharField(max_length=255)

• 不要使用 get_user_model()， 而使用 settings.AUTH_USER_MODEL

  会生成循环引用 it tends to create import loops

自定义 User 的字段

• 继承 AbstractUser

# profiles/models.py

from django.contrib.auth.models import AbstractUser
from django.db import models

class KarmaUser(AbstractUser):
    karma = models.PositiveIntegerField(verbose_name='karma',
        default=0,
        blank=True)

然后在配置中加入

AUTH_USER_MODEL = 'profiles.KarmaUser'

• 继承 AbstractBaseUser

  only 3 fields: password last_login is_active.

• 连表查询

# profiles/models.py

from django.conf import settings
from django.db import models

from flavors.models import Flavor


class EaterProfile(models.Model):
    # Default user profile
    # If you do this you need to either have a post_save signal or
    # redirect to a profile_edit view on initial login.
    user = models.OneToOneField(settings.AUTH_USER_MODEL)
    favorite_ice_cream = models.ForeignKey(Flavor, null=True, blank=True)
    
    
class ScooperProfile(models.Model):
    user = models.OneToOneField(settings.AUTH_USER_MODEL)
    scoops_scooped = models.IntegerField(default=0)
    
    
class InventorProfile(models.Model):
    user = models.OneToOneField(settings.AUTH_USER_MODEL)
    flavors_invented = models.ManyToManyField(Flavor, null=True, blank=True)


>> user.eaterprofile.favorite_ice_cream