registrations_controller.rb

class Users::RegistrationsController < Devise::RegistrationsController
  def create
    build_resource

    if resource.save
      set_flash_message :notice, :signed_up
      if resource.confirmed?
        sign_in_and_redirect(resource_name, resource)
      else
        redirect_to some_other_url
      end
    else
      clean_up_passwords(resource)
      render_with_scope :new
    end
  end
end