Question

I have a few apps installed on my Django project. I would like for some of the apps to be able to get information from some of the other apps. Therefore, I am looking to give each of the apps some basic meta information about permissions.

So, if I have three apps: A1, A2, and A3.

I would like to set A1 to be read only. Set A2 to be read/write. Set A3 to not be able to read or write from.

The meta descriptions are mostly for my own sanity. These apps won’t be working with apps that I didn’t write.

Is there a way to add such meta data at the app level? Perhaps through an unused description field for the Django app?

Answer 1

Don’t know why you would ever need this, but normally you place all meta information in __init__.py of the app. Then you can access it from another app:

myapp1/__init__.py:

version = '0.1.0'
permissions = ['read', 'write']

myapp2/utils.py:

from django.conf import settings
import importlib

for app_name in settings.INSTALLED_APPS:
    app = importlib.import_module(app_name)
    if hasattr(app, 'permissions') and 'write' in app.permissions:
        do_something()