Welcome to django-mptt2 documentation!
django-mptt2
Based on the idea of the unmaintained django-mptt package i implemented this new code base to replace it.
Cause no other package fits all of my use cases, which are primary in fast reading tree’s from the database, i started working on this project.
There is an alternative to this package, called django-treebeard, which implements nested sets as well, but without a parent foreignkey.
Quick-Start
Install it as any other django app to your project:
$ pip install django-mptt2
Add django-mptt2 to INSTALLED_APPS:
INSTALLED_APPS = [
# other apps
"mptt2"
]
Inheritance from the abstract mptt2.models.Node Model:
from django.db import models
from mptt2.models import
class Genre(Node)
name = models.CharField(max_length=50, unique=True)
Adding nodes:
from project.models import Genre
rock = Genre(name="Rock")
rock.insert_at() # it will become the root node without target parameter
metal = Genre(name="Metal")
metal.insert_at(target=rock) # it will become the last child from rock
alternative = Genre(name="Alternative")
alternative.insert_at(target=rock) # it will become the last child from rock, the right sibling of metal
For full usage description, please read the tutorial section of our documentation.
Contents
- Installation
- Tutorial
- Admin Sites
- Development
- Changelog
- Code documentation
PositionTreeNodeNode.MetaNode.delete()Node.descendant_countNode.get_ancestors()Node.get_children()Node.get_descendants()Node.get_family()Node.get_root()Node.get_siblings()Node.has_leafsNode.insert_at()Node.is_leaf_nodeNode.is_root_nodeNode.move_to()Node.mptt_depthNode.mptt_lftNode.mptt_parentNode.mptt_parent_idNode.mptt_rgtNode.mptt_treeNode.mptt_tree_idNode.objectsNode.subtree_width
TreeManager