Contents

= acts_as_tree

Specify this +acts_as+ extension if you want to model a tree structure by providing a parent association and a children
association. This requires that you have a foreign key column, which by default is called +parent_id+.

== Install

  gem install acts_as_tree --source http://gemcutter.org

== Example

  class Category < ActiveRecord::Base
    acts_as_tree :order => "name"
  end

  Example:
  root
   \_ child1
        \_ subchild1
        \_ subchild2

  root      = Category.create("name" => "root")
  child1    = root.children.create("name" => "child1")
  subchild1 = child1.children.create("name" => "subchild1")

  root.parent   # => nil
  child1.parent # => root
  root.children # => [child1]
  root.children.first.children.first # => subchild1

Copyright (c) 2007 David Heinemeier Hansson, released under the MIT license

Version data entries

3 entries across 3 versions & 3 rubygems

Version	Path
radiant-1.0.0	ruby-debug/ruby/1.8/gems/acts_as_tree-0.1.1/README.rdoc
mdeering-acts_as_tree-0.1.2	README.rdoc
acts_as_tree-0.1.1	README.rdoc