public function currencyDataAccess($params, $smarty)
    {
        $currency = $this->getSession()->getCurrency();

        if ($currency) {
            return $this->dataAccessWithI18n(
                "Currency",
                $params,
                CurrencyQuery::create()->filterByPrimaryKey($currency->getId()),
                array("NAME")
            );
        }

        return '';
    }