标签:django-signals django-apps python django deprecation-warning
经历过
Django 1.9 deprecation warnings app_label
但答案无法解决我的问题,所以再问一遍.
我有一个应用程序添加到设置中的INSTALLED_APPS.
当我运行manage.py runserver时,我收到此警告,
[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):
我的应用程序的代码,
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'
关于Python 2.7.8的Django 1.8.2版
解决方法:
您正在应用配置运行之前导入models.py.
要修复它,您可以在CatalogConfig.ready方法中导入和配置信号.
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')
)
您可能想要检查就绪方法in documentation
标签:django-signals,django-apps,python,django,deprecation-warning 来源: https://codeday.me/bug/20191006/1861635.html
本站声明: 1. iCode9 技术分享网(下文简称本站)提供的所有内容,仅供技术学习、探讨和分享; 2. 关于本站的所有留言、评论、转载及引用,纯属内容发起人的个人观点,与本站观点和立场无关; 3. 关于本站的所有言论和文字,纯属内容发起人的个人观点,与本站观点和立场无关; 4. 本站文章均是网友提供,不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属;如您发现该文章侵犯了您的权益,可联系我们第一时间进行删除; 5. 本站为非盈利性的个人网站,所有内容不会用来进行牟利,也不会利用任何形式的广告来间接获益,纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。