Registration of user and account: RegistrationsController

registrations_controller.rb

# see https://gist.github.com/RichardJordan/9059633 for explanation
# -----------------------------------------------------------------

# in routes.rb - resources :registrations, only: [:new, :create]

class RegistrationsController < ApplicationController
  include FormUtilities::GenerateHaikuName

  attr_writer :registrar_source

  respond_to :html

  expose(:registration, attributes: :registration_params)

  def new                                         # maybe put back as responsibility
    registration.shortname = create_haiku_name    # of registration in an after_init 
  end                                             # callback of some sort

  def create
    registrar.register registration
  end

  def create_registration_succeeded(registered)
    self.current_user = registered.user
    redirect_to registered.user,
      notice: "Congratulations. Thank you for registering."
  end

  def create_registration_failed(not_registered)
    self.registration = not_registered
    render :new
  end

  private

  def registrar
    registrar = registrar_source.call(self)
  end

  def registrar_source
    @registrar_source ||= Registrar.public_method(:new)
  end

  def registration_params
    params.require(:registration).permit(
      :email, :password, :password_confirmation, :fullname, :shortname)
  end

end