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Add manual sort order to Django objects via an abstract base class and admin classes.

Project description

# Django Orderable

Add manual sort order to Django objects via an abstract base class and admin classes. Project includes:

* Abstract base Model
* Admin class
* Inline admin class
* Admin templates

## Demo

![django-orderable demo](

## Installation

Grab from the PyPI:

pip install django-orderable



Subclass the Orderable class:

from orderable.models import Orderable

class Book(Orderable):

Subclass the appropriate Orderable admin classes:

from orderable.admin import OrderableAdmin, OrderableTabularInline

class SomeInlineClass(OrderableTabularInline):

class SomeAdminClass(OrderableAdmin):
list_display = ('__unicode__', 'sort_order_display')

jQuery and jQuery UI are used in the Admin for the draggable UI. You may override the versions with your own (rather than using Google's CDN):

class SomeAdminClass(OrderableAdmin):
class Media:
extend = False
js = (

## Notes

### `class Meta`

If your subclass of `Orderable` defines [`class Meta`]( then make sure it subclasses `Orderable.Meta` one so the model is sorted by `sort_order`. ie:

class MyOrderable(Orderable):
class Meta(Orderable.Meta):

### Custom Managers

Similarly, if your model has a custom manager, subclass `orderable.managers.OrderableManager` instead of `django.db.models.Manager`.

### Transactions

Saving orderable models invokes a fair number of database queries, and in order
to avoid race conditions should be run in a transaction.

### Adding Orderable to Existing Models

You will need to populate the required `sort_order` field. Typically this is
done by adding the field in one migration with a default of `0`, then creating
a data migration to set the value to that of its primary key:

for obj in orm['appname.Model'].objects.all():
obj.sort_order =

### Multiple Models using Orderable

When multiple models inherit from Orderable the `next()` and `previous()`
methods will look for the next/previous model with a sort order. However you'll
likely want to have the various sort orders determined by a foreign key or some
other predicate. The easiest way (currently) is to override the method in

Project details

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