/**
* Stores the preferred currency of the order.
* IMPORTANTLY we store the exchange rate for future reference...
* @param EcommerceCurrency $currency
*/
public function UpdateCurrency($newCurrency)
{
if ($this->IsSubmitted()) {
user_error("Can not set the exchange rate after the order has been submitted", E_USER_NOTICE);
} else {
if (!is_a($newCurrency, Object::getCustomClass("EcommerceCurrency"))) {
$newCurrency = EcommerceCurrency::default_currency();
}
$this->CurrencyUsedID = $newCurrency->ID;
$this->ExchangeRate = $newCurrency->ExchangeRate();
$this->write();
}
}
