Django 表示在用户创建上不起作用

Question

我创建了一个信号，应该为signals.py文件中每个创建的用户创建一个配置文件，但它不起作用。我试图检查命令python manage.py check是否有错误，但这似乎也不起作用。

models.py

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

class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
profile_pic = models.ImageField(default='default.jpg', upload_to='profile_pics')
def __str__(self):
return f"{self.user.username}'s profile "

signals.py

from django.db.models.signals import post_save
from django.dispatch import receiver
from django.contrib.auth.models import User
from .models import Profile

@receiver(post_save, sender=User)
def create_profile(sender, created, instance, **kwargs):
if created:
Profle.instance.create(user=instance)

@receiver(post_save, sender=User)
def create_profile(sender, instance, **kwargs):
instance.profile.save()

apps.py

from django.apps import AppConfig

class UsersConfig(AppConfig):
name = 'users'
def ready(self):
import users.signals

我做错了什么？

Answer 1

信号处理程序中的参数顺序错误，请更改：

def create_profile(sender, created, instance, **kwargs):

自：

def create_profile(sender, instance, created, **kwargs):

有关更多详细信息，请查看post_signal文档。

Answer 2

问题在于我如何在主项目目录的 settings.py 文件中安装用户应用程序。

我用了：

INSTALLED_APPS = [
'users',
]

**而不是**

INSTALLED_APPS = [
'users.apps.UsersConfig',
]