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[英]How can i make signals in django which can differentiate between put and post method?
[英]How can I correctly make signals in django 3?
我在 django3(python 3.8)上編寫了用戶應用程序。 和 model 配置文件,它正在擴展用戶 model。 所以我想每次用戶創建帳戶時都這樣做,django 會自動為此創建配置文件。 我在用戶應用程序上有 signals.py 文件:
from django.db.models.signals import post_save
from django.contrib.auth.models import User
from django.dispatch import receiver
from .models import Profile
@receiver(post_save, sender = User)
def create_profile(sender, instance, created, **kwargs):
if created:
Profile.objects.create(user = instance)
@receiver(post_save, sender = User)
def save_profile(sender, instance, **kwargs):
instance.profile.save()
這是我的用戶/apps.py:
from django.apps import AppConfig
class UsersConfig(AppConfig):
name = 'users'
def ready(self):
import users.signals
所有工作,沒有例外,錯誤。 但它不會為新用戶創建配置文件。 筆記:
ready
方法中寫了print()
。 但它不打印。 First of all if you have changed your User model or trying to use some other model as your user model, don't forget to Add line AUTH_USER_MODEL = 'users.User'
to your settings.py
(change the 'users.User' to您的用戶應用程序的路徑)告訴 Django 您正在使用另一個 model 而不是默認用戶 model。 然后在您的信號中,而不是from django.contrib.auth.models import User
try from django.contrib.auth import get_user_model
並將您的代碼更改為:
from django.db.models.signals import post_save
from django.contrib.auth import get_user_model
from django.dispatch import receiver
from .models import Profile
User = get_user_model()
@receiver(post_save, sender = User)
def create_profile(sender, instance, created, **kwargs):
if created:
Profile.objects.create(user = instance)
最后,如果您已經完成了這些步驟並且您的信號仍然不起作用,請嘗試在您的users
應用程序的__init__.py
中添加以下行:
default_app_config = 'users.apps.UsersConfig'
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