ActiveRecordUUID

UUID extension for ActiveRecord

Installation

Add this line to your application's Gemfile:

gem 'activerecord_uuid'

And then execute:

$ bundle

Or install it yourself as:

$ gem install activerecord_uuid

Define attribute as UUID

class CreateCountries < ActiveRecord::Migration
  def change
    create_table :countries do |t|
      t.uuid :key
    end
  end
end

Define primary key as UUID

class CreateLanguages < ActiveRecord::Migration
  def change
    create_table :languages do |t|
      t.uuid :id, primary_key: true
    end
  end
end

For automatic generation of UUID before creation

class Country < ActiveRecord::Base
  attr_uuid :key
end

For change primary key to UUID

class Language < ActiveRecord::Base
  pk_uuid
end

ActiveRecordUUID.random