Forwardable Example

forwardable_example.rb

require 'forwardable'

class Supervisor
  def email
    'blah'
  end

  def first_name
    'Jon'
  end

  def last_name
    'Jackson'
  end
end

class Project
  extend Forwardable

  attr_accessor :supervisor

  def_delegator :supervisor, :email,      :supervisor_email
  def_delegator :supervisor, :last_name,  :supervisor_last_name
  def_delegator :supervisor, :first_name, :supervisor_first_name
end

p = Project.new
p.supervisor = Supervisor.new

puts p.supervisor_email
puts p.supervisor_last_name
puts p.supervisor_first_name