django-orderedmodel helps you create Django models that can be moved up/down with respect to each other.

There are a few simple steps to follow to make your models orderable:

1. Install django-orderedmodel using your favourite way of installing Django packages.
2. Add 'orderedmodel' to INSTALLED_APPS in your settings.py.
3. Ensure that your project is using django.contrib.staticfiles to serve static content (this is now required for compatibility with Django 1.4+).
4. Derive your Model from orderedmodel.OrderedModel.
5. Derive your ModelAdmin from orderedmodel.OrderedModelAdmin.
6. Add reorder field to yout ModelAdmin's list_display.
7. Enjoy!

Now you can use order_by('order') in your query to get instances of your model in desired order (actually it is not neccessary to call order_by explicitly unless you have changed default ordering in your model's Meta).

Suppose you have a django app called testapp. You need an orderable model TestModel.

models.py:

from django.db import models
from orderedmodel import OrderedModel

class TestModel(OrderedModel):
  name = models.CharField(max_length=30)

admin.py:

from django.contrib import admin
from orderedmodel import OrderedModelAdmin

from testapp.models import TestModel


class TestModelAdmin(OrderedModelAdmin):
  list_display = ['name', 'reorder']

admin.site.register(TestModel, TestModelAdmin)

Yep! Now if you create several instances of your model and look into admin site you'll see something like this:

Current version of django-orderedmodel requires Django-1.6+.

See branch django-1.3 for version compatible with Django-1.3.

See branch django-1.4 for version compatible with Django-1.4.

Sure!