acts_as_list

yearl

Module ActiveRecord::Acts::List::InstanceMethods

In: vendor/rails/activerecord/lib/active_record/acts/list.rb

 
http://api.rubyonrails.org/classes/ActiveRecord/Acts/List/InstanceMethods.html#M000686
 
<!--  banner header -->
<div class="description">All the methods available to a record that has had acts_as_listspecified. Each method works by assuming the object to be the item in thelist, so chapter.move_lower would move that chapter lower in thelist of all chapters. Likewise, chapter.first? would return trueif that chapter is the first in the list of all chapters.
 
 
 
Example=======  class TodoList < ActiveRecord::Base    has_many :todo_items, :order => "position"  end  class TodoItem < ActiveRecord::Base    belongs_to :todo_list    acts_as_list :scope => :todo_list  end  todo_list.first.move_to_bottom  todo_list.last.move_higher