# frozen_string_literal: false class Invoice class AdjustableSerializer < ActiveModel::Serializer attributes :id, :type, :currency, :included_tax_total, :additional_tax_total, :amount def type object.class.name end [:currency, :included_tax_total, :additional_tax_total, :amount].each do |method| define_method method do return nil unless object.respond_to?(method) object.public_send(method).to_f end end end end