/**
* 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;
}
}
