Add all models to Django admin automatically

To show, edit, and work with a model inside the Django admin site, you usually have to add each desired model manually by adding a line to {your app}/admin.py. For example, to add your Project class to your Admin site, you have to add the following to your admin.py file:

from django.contrib import admin
from myproject.myapp.models import Project

admin.site.register(Project)

Over time, especially during development when you create new objects a lot, this can become quite tedious. So I cam up with a quick hack to add all models to your Django admin site automatically.

Instead of registering all classes manually, we simply use inspection to add all classes of our models module. This is what you need to add to the admin.py file inside your app:

import inspect

from django.contrib import admin

from myproject.myapp import models

for name, obj in inspect.getmembers(models):
    if inspect.isclass(obj):
        admin.site.register(obj)

This code uses inspection to automatically add all classes inside your models. Note that you cannot have any other classes inside models withough extending the above code. I would recommend to use this during development only and add all classes manually in production.