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django-treebeard /

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treebeard
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django-treebeard

django-treebeard is a library that implements efficient tree implementations for the Django Web Framework 1.0+. It includes 3 different tree implementations: Adjacency List, Materialized Path and Nested Sets. Each one has it's own strength and weaknesses but share the same API, so it's easy to switch between implementations.

django-treebeard uses Django Model Inheritance with abstract classes to let you define your own models. To use django-treebeard:

  1. Run easy_install django-treebeard to install the latest treebeard version from PyPi 1.1. If you don't like easy_install, download a release from the treebeard download page or get a development version from the treebeard mercurial repository and run python setup.py install
  2. Add 'treebeard' to the INSTALLED_APPS section in your django settings file.
  3. Create a new model that inherits from one of django-treebeard's abstract tree models: mp_tree.MP_Node (materialized path), ns_tree.NS_Node (nested sets) or al_tree.AL_Node (adjacency list).
  4. Run python manage.py syncdb
  5. (Optional) If you are going to use the admin.TreeAdmin class for the django admin, you should install treebeard as a directory instead of an egg: easy_install --always-unzip django-treebeard. If you install treebeard as an egg, you'll need to enable django.template.loaders.eggs.load_template_source in the TEMPLATE_LOADERS setting in your django settings file. Either way, you need to add the path (filesystem or python namespace) to treebeard's templates in TEMPLATE_DIRS.

You can find the documentation in

http://docs.tabo.pe/django-treebeard/tip/
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