Gem version of acts_as_tree Rails plugin.
Ruby
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Failed to load latest commit information.
lib
test
.document
.gitignore
README.rdoc
Rakefile
VERSION
acts_as_tree.gemspec

README.rdoc

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 © 2007 David Heinemeier Hansson, released under the MIT license