Adding extra registration fields with Devise

Question

I am trying to add some extra fields to registrations#new. Since I only want extra data and do not need different functionality, I don\'t see why I need to override controll

Answer 1

New fields could be added like this example. For Devise 4, the Parameter Sanitaizer API has changed:

class ApplicationController < ActionController::Base
  before_action :configure_permitted_parameters, if: :devise_controller?

  protected

  def configure_permitted_parameters
    devise_parameter_sanitizer.permit(:sign_up, keys: [:username, :name])
  end
end