FieldRepository::getCurrencyId

public function getCurrencyId(string $fieldName = Item::FIELD_NAME_CURRENCY_ID): ScalarField
{
	return
		(new StringField($fieldName))
			->configureSize(50)
			->configureDefaultValue(static function () {
				return Currency::getBaseCurrencyId();
			})
			->configureTitle(Loc::getMessage('CRM_TYPE_ITEM_FIELD_CURRENCY_ID'))
	;
}