gistfile1.rb

module Sortable
  
  def self.included(base)
    base.extend ClassMethods
  end

  module ClassMethods
    def save_order(items)
      items.each_with_index do |item,i|
        begin 
          c =  self.find(item.to_i)
          c.position = i
          c.save
        rescue
        end
      end
    end
  end
  
end