Provide solution to pass a session variable to a PORO (through controller)

We have an existing project, a booking engine. In order to make bookings a user has to have a complete profile. When the user attempts makes a booking request with an incomplete profile, we save the URL in the session session[:user_return_to_from_wizard] and forward the user to the wizard (a PORO). What is missing is the integration into the wizard's behaviour that it checks for the "session[:user_return_to_from_wizard]" at the last step of a wizard for it to forward the user back to his booking (or other action) In our opinion the easiest solution would be to change the Wizard controller that it load the session[:user_return_to_from_wizard] and passes it on to the wizard (the PORO) class WizardController < ApplicationController def index return_url = session[:user_return_to_from_wizard] wizard = [login to view URL](return_url: return_url) ... end end We will provide the relevant files.