Creates easy shorten UUID in your RAILS APP

1.Gemfile

## See http://

gem 'base32-crockford', :require => 'base32/crockford'

2.rails g migration

rails g migration AddPermanentUuidToDocuments permanent_uuid:string

rake db:migrate

3.document.rb

class Document < ActiveRecord::Base

  [..]


  before_validation :set_permanent_uuid, :on => :create

  validates_presence_of :permanent_uuid
  validates_uniqueness_of :permanent_uuid

  [..]


  def to_param
    "#{permanent_uuid}"
  end

  protected

  def set_permanent_id
    # If you want to a shorter UUID you can play with other options than Time 
    self.permanent_uuid = Base32::Crockford.encode(Time.now.to_i)
  end


end