SimpleFactoryGirl.rb

require 'rubygems'
require 'bundler'
Bundler.require(:default)

include FactoryGirl::Syntax::Methods

# Models
class User
  attr_accessor :first_name, :last_name, :email, :sex
  attr_accessor :profile

  def save!
    puts first_name
  end
end

class Profile
  attr_accessor :age

  def save!
    puts "Profile saved"
  end
end


# DEFINITIONS

FactoryGirl.define do
  factory :admin, class: :User do
    first_name { 'Petr' }
    last_name { 'Ivanov'}
    profile
  end

  factory :profile do
    age 30
  end
end


FactoryGirl.find_definitions

# USAGE

p build(:admin).profile.age