我创建了一个自定义用户模型users_user（从默认用户模型 ( auth_user) 中删除记录。我得到错误：
IntegrityError at /admin/users/user/
insert or update on table "django_admin_log" violates foreign key constraint "django_admin_log_user_id_c564eba6_fk_auth_user_id"
DETAIL: Key (user_id)=(3) is not present in table "auth_user".
有没有办法可以保留标准的 Django 管理页面（下面的屏幕截图），但引用我的自定义用户模型而不是标准auth_user模型？
用户/模型.py
from django.db import models
from PIL import Image
from django.conf import settings
from django.contrib.auth.models import (
BaseUserManager, AbstractBaseUser
)
#~~~ CUSTOM USER ~~~
class UserManager(BaseUserManager):
def create_user(self, email, username, password=None):
print('username in UserManager.create_user(): ' + username)
if not email:
raise ValueError('Users must have an email address')
if not username:
raise ValueError('Users must have a username')
user = self.model(
email=self.normalize_email(email),
username=username, #todo: confirm, is this right?
)
user.set_password(password)
user.save(using=self._db)
return user
def create_staffuser(self, email, password):
"""
Creates and saves a staff user with the given email and password.
"""
user = self.create_user(
email,
username=username,
password=password,
)
user.staff = True
user.save(using=self._db)
return user
def create_superuser(self, email, username, password):
print('username in UserManager.create_superuser(): ' + username)
"""
Creates and saves a superuser with the given email and password.
"""
user = self.create_user(
email,
username=username,
password=password,
)
user.staff = True
user.admin = True
user.save(using=self._db)
return user
class User(AbstractBaseUser):
email = models.EmailField(
verbose_name='email address',
max_length=255,
unique=True,
)
username = models.CharField(max_length=100, unique=True)
is_active = models.BooleanField(default=True)
staff = models.BooleanField(default=False) # a admin user; non super-user
admin = models.BooleanField(default=False) # a superuser
# notice the absence of a "Password field", that is built in.
USERNAME_FIELD = 'username'
REQUIRED_FIELDS = ['email'] # Email & Password are required by default.
objects = UserManager()
def get_short_username(self):
# The user is identified by their email address
return self.username[0:10] # Get first 10 chars of username
def __str__(self):
return self.username
def has_perm(self, perm, obj=None):
"Does the user have a specific permission?"
# Simplest possible answer: Yes, always
return True
def has_module_perms(self, app_label):
"Does the user have permissions to view the app `app_label`?"
# Simplest possible answer: Yes, always
return True
@property
def is_staff(self):
"Is the user a member of staff?"
return self.staff
@property
def is_admin(self):
"Is the user a admin member?"
return self.admin
class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
image = models.ImageField(default='default.jpg', upload_to='profile_pics')
def __str__(self):
return f'{self.user.username} Profile'
# def save(self, *args, **kwargs):
# super().save(*args, **kwargs)
# img = Image.open(self.image.path)
# if img.height > 300 or img.width > 300:
# output_size = (300, 300)
# img.thumbnail(output_size)
# img.save(self.image.path)
用户/admin.py：
from django.contrib import admin
from .models import Profile
from django.contrib.auth import get_user_model
User = get_user_model()
admin.site.register(Profile)
admin.site.register(User) #<- THIS IS REGISTERING THE WRONG USER MODEL
