Django app to ease ordering of related data - enable Drag&Drop ordering in admin with just a few LOC
This app aims at easing implementing drag & drop reordering of inline data in Django Admin.
Recent version of Grappelli includes drag and drop inlines, so if you are already using Grappelli, installing django-inline-ordering does not make sense. If you didn’t evaluate Grappelli yet, I encourage you to do so!
The django-inline-ordering is being tested during development on:
- Firefox 3.5+
- Internet Explorer 7+
- Google Chrome 10+
- Opera 11+
Suggestions on how to improve django-inline-ordering are very welcome.
- Put ‘inline_ordering’ on your python path
- Add ‘inline_ordering’ to INSTALLED_APPS tuple in settings file
For each model that you want to be reorderable with drag & drop, you need to setup an admin class and slightly modify model declaration. This way you can easily apply reordering to existing model classes. You’ll also have to run collectstatic task or copy one file to your MEDIA_ROOT when using Django < 1.3.
Let’s start with a simple example: Gallery has many Images. User might want to reorder the photos in the gallery to fit his likings.
Setup your admin inline class to inherit after OrderableStackedInline
from inline_ordering.admin import OrderableStackedInline class ImageInline(OrderableStackedInline): model = Image class GalleryAdmin(ModelAdmin): model = Gallery inlines = (ImageInline, )
Setup your model to inherit after Orderable
from inline_ordering.models import Orderable class Image(Orderable): src = models.ImageField(upload_to='gallery/images') title = models.CharField(max_length=255) alt = models.TextField() class Meta(Orderable.Meta): pass
As ordering column was named inline_ordering_position, avoid using this name in your model.
The Meta class declaration is NOT necessary - add it only if you need to set your own meta attributes.
Make inline_ordering.js accessible over HTTP
Since Django 1.3, there is a staticfiles app that django-inline-ordering is aware of. Just run manage.py collectstatic to copy/symlink media files.
The simplest way, back in Django 1.2, was to copy media/inline_ordering.js to your MEDIA_ROOT.
If you however believe that would make a mess, take advantage of the ‘INLINE_ORDERING_JS’ setting and set it to a location which should be requested when accessing orderable inlines:
INLINE_ORDERING_JS = STATIC_URL + '/js/third_party/inline_ordering.js'
- Reordering won’t work for new records until saved. This needs a onchange handler for the record form or some model refactoring.
- At this point there is no support for tabular inlines. If you would like to approach this problem, fork the project on Github.
A simple test project has been added in fdc2189 under tests/testproject. Use tools/buildenv.sh to build a virtualenv for development and syncdb to create necessary models and admin permissions.
Version 1.0.1 is likely to be the last one, as I’m planning to release a new library to support ordering in Django admin both of inlines as well as on the change list.
simon for http://djangosnippets.org/snippets/1053/
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