Previously in Django 1.6 and earlier versions, I used to do the following to make User's email attribute unique:
class User(AbstractUser):
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = ['username']
User._meta.get_field_by_name('email')[0]._unique=True
I'm migrating to Django 1.7 but this code is raising the following error:
django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet.
traced all the way back to User._meta.get_field_by_name('email')[0]._unique=True.
How should I migrate this to Django 1.7?
According to the documentation, ready() method of AppConfig is called when the registry is populated which means models are also loaded, therefore referencing models shouldn't be a problem.
That line of code is still not valid as it is in ready() though, as pointed out in the documentation:
You cannot import models in modules that define application
configuration classes, but you can use get_model() to access a model
class by name
Therefore, remove User._meta.get_field_by_name('email')[0]._unique=True from models.py and do the following in your app configuration instead:
class AccountsConfig(AppConfig):
name = 'modules.accounts'
def ready(self):
self.get_model('User')._meta.get_field_by_name('email')[0]._unique=True
