RemovedInDjango19警告:模型未声明显式的app_label [英] RemovedInDjango19Warning: Model doesn't declare an explicit app_label
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问题描述
已通过
但答案无法解决我的问题,因此请再次询问。
but answers couldn't fix my problem, so asking again.
我有一个设置已添加到INSTALLED_APPS的应用程序。
I have an app that is added to INSTALLED_APPS in settings.
我每次运行 manage.py runserver
,我收到此警告,
when ever I run manage.py runserver
, I get this warning,
[trimmed path to project]/catalog/models.py:9: RemovedInDjango19Warning: Model class catalog.models.Category doesn't declare an explicit app_label and either isn't in an application in INSTALLED_APPS or else was imported before its application was loaded. This will no longer be supported in Django 1.9.
class Category(models.Model):
我应用程序中的代码,
signals.py
from django.db.models.signals import post_save
from django.dispatch import receiver
from models import Category
@receiver(post_save, sender=Category)
def someSignal(sender, **kwargs):
pass
apps.py
from django.apps import AppConfig
class CatalogConfig(AppConfig):
name = 'catalog'
verbose_name = 'Catalogue'
init.py
import signals
default_app_config = 'catalog.apps.WhosConfig'
Python 2.7.8
推荐答案
要在应用配置运行之前导入 models.py 。
You are importing models.py before app configuration run.
T要对其进行修复,可以使用 CatalogConfig.ready
方法导入和配置信号。
To fix it, you could import and configure signals in CatalogConfig.ready
method.
像这样:
signals.py
def someSignal(sender, **kwargs):
pass
apps.py
from django.apps import AppConfig
from django.db.models.signals import post_save
class CatalogConfig(AppConfig):
name = 'catalog'
verbose_name = 'Catalogue'
def ready(self):
from .signals import someSignal
post_save.connect(
receiver=someSignal,
sender=self.get_model('Category')
)
您可能要检查现成的方法文档中
you may want to check ready method in documentation
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