How do I reference a Django settings variable in my models.py?

Question

This is a very beginner question. But I'm stumped. How do I reference a Django settings variable in my model.py?

NameError: name 'PRIVATE_DIR' is not defined

Also tried a lot of other stuff including settings.PRIVATE_DIR

settings.py:

PRIVATE_DIR = '/home/me/django_projects/myproject/storage_dir'

models.py:

# Problem is here.
from django.core.files.storage import FileSystemStorage

fs = FileSystemStorage(location=PRIVATE_DIR)

class Customer(models.Model): 
    lastName = models.CharField(max_length=20) 
    firstName = models.CharField(max_length=20) 
    image = models.ImageField(storage=fs, upload_to='photos', blank=True, null=True)

What's the correct way to do this?

from django.conf import settings - docs.djangoproject.com/en/dev/topics/settings/… — wkl
– wkl, Commented Oct 23, 2011 at 17:27

Greg · Accepted Answer · 2021-01-13 14:40:29Z

462

Try with this: from django.conf import settings then settings.VARIABLE to access that variable.

VARIABLE should be in capital letter. It will not work otherwise.

edited Jan 13, 2021 at 14:40

Greg

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answered Oct 23, 2011 at 17:31

juankysmith

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2 Comments

Ev. Over a year ago

Something relevant: if you have several instances of settings_something.py due to a project deployed in several environments, do not try to import from app.settings. Overwritten variables in the other files won't take effect. Always use the import mentioned in this answer. It took me a few hours to realize what was going on in my project.

mirek Over a year ago

This works, if it is properly configured: with environment variable DJANGO_SETTINGS_MODULE or with manage.py command line parameter --settings=.. Read more in docs: docs.djangoproject.com/en/2.0/topics/settings

poiuytrez · Accepted Answer · 2013-10-29 13:39:56Z

141

from django.conf import settings

PRIVATE_DIR = getattr(settings, "PRIVATE_DIR", None)

Where it says None, you will put a default value incase the variable isn't defined in settings.

edited Oct 29, 2013 at 13:39

poiuytrez

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answered Jan 31, 2013 at 2:07

HelpyHelperton

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Comments

ahmnouira · Accepted Answer · 2023-05-31 21:43:25Z

6

There's an example of importing the EMAIL_HOST_USER from the settings.py file and use it to send an email:

from django.conf import settings
from django.core.mail import send_mail

def post_share(request, post_id): 
   # ...
   send_mail(subject, message, settings.EMAIL_HOST_USER, [
                      settings.EMAIL_HOST_USER, '[email protected]'])

edited May 31, 2023 at 21:43

answered Dec 17, 2022 at 22:35

ahmnouira

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