/** * Check if a currency already exists. * * @param int|string $iso_code int for iso code number string for iso code * @param $iso_code_num * @param int $shop_id * @return bool */ public static function exists($iso_code, $iso_code_num, $shop_id = 0) { if (is_int($iso_code)) { $currency_id = JeproshopCurrencyModelCurrency::getIdByIsoCodeNum((int) $iso_code_num, (int) $shop_id); } else { $currency_id = JeproshopCurrencyModelCurrency::getIdByIsoCode($iso_code, (int) $shop_id); } if ($currency_id) { return true; } else { return false; } }