app/controllers/registrations_controller.rb
class RegistrationsController < Devise::RegistrationsController
private
def sign_up_params
params.require(:user).permit(:full_name, :user_name, :email, :password,
:password_confirmation)
end
def account_update_params
params.require(:user).permit(:user_name, :email, :password,
:password_confirmation, :current_password)
end
end