gistfile1.rb

class ParameterSanitizer < Devise::ParameterSanitizer
    def sign_up
      default_params.permit(:title, :first_name, :last_name, :email, :password, :password_confirmation, :address, :city_id, :office_phone_number, { speciality_ids: [] }, :terms_of_service)
    end
  end
  

class ApplicationController < ActionController::Base

  def devise_parameter_sanitizer
    case resource_class
    when Doctor
      Doctor::ParameterSanitizer.new(Doctor, :doctor, params)
    else
      super # Use the default one
    end
  end
end