public function saveCurrencyObject()
{
$obj_currency = new ilPaymentCurrency();
$obj_currency->setUnit($_POST['currency_unit']);
$obj_currency->setIsoCode($_POST['iso_code']);
$obj_currency->setSymbol($_POST['symbol']);
$obj_currency->setConversionRate($_POST['conversion_rate']);
$obj_currency->addCurrency();
$this->currenciesObject();
}