class Champs::PhoneChamp < Champs::TextChamp validates :value, phone: { possible: true, allow_blank: true, message: I18n.t(:not_a_phone, scope: 'activerecord.errors.messages') }, if: -> { !Phonelib.valid_for_countries?(value, TypesDeChamp::PhoneTypeDeChamp::DEFAULT_COUNTRY_CODES) && validate_champ_value_or_prefill? } end