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# ActsAsTree

## Notes
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`.

    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

1 entries across 1 versions & 1 rubygems

Version	Path
acts_as_tree-0.2.0	README.md