问题
Have gone through
Django 1.9 deprecation warnings app_label
but answers couldn't fix my problem, so asking again.
I have an app that is added to INSTALLED_APPS in settings.
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):
The code from my app,
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'
Django version 1.8.2 on Python 2.7.8
回答1:
You are importing models.py before app configuration run.
To fix it, you could import and configure signals in CatalogConfig.ready
method.
like this:
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')
)
you may want to check ready method in documentation
回答2:
I experienced this issue when running tests and it was simply a matter of changing:
from .models import MyModel
to
from apps.myapp.models import MyModel
来源:https://stackoverflow.com/questions/31179459/removedindjango19warning-model-doesnt-declare-an-explicit-app-label