/**
* Retrieved from reference on Jul 6, 2012
* http://fasteri.com/list/country-code-dialing-code-currency-timezone-of-countries.html
*/
static function getNationalCurrency($country)
{
$country = substr($country, 0, 2);
$country = strtoupper($country);
$nationalCurrencies = NationalCurrencies::getNationalCurrencies();
if (isset($nationalCurrencies[$country])) {
return $nationalCurrencies[$country];
} else {
return NULL;
}
}
/**
* Called when a currency code error exists. If a fallback currency
* conversion is enabled for this adapter, convert intended amount to
* default currency.
*
* @throws DomainException
*/
protected function fallbackToDefaultCurrency()
{
$adapterClass = $this->gateway->getGatewayAdapterClass();
$defaultCurrency = null;
if ($this->gateway->getGlobal('FallbackCurrencyByCountry')) {
$country = $this->getVal('country');
if ($country !== null) {
$defaultCurrency = NationalCurrencies::getNationalCurrency($country);
}
} else {
$defaultCurrency = $this->gateway->getGlobal('FallbackCurrency');
}
if (!$defaultCurrency) {
return;
}
// Our conversion rates are all relative to USD, so use that as an
// intermediate currency if converting between two others.
$oldCurrency = $this->getVal('currency_code');
if ($oldCurrency === $defaultCurrency) {
throw new DomainException(__FUNCTION__ . " Unsupported currency {$defaultCurrency} set as fallback for {$adapterClass}.");
}
$oldAmount = $this->getVal('amount');
$usdAmount = 0.0;
$newAmount = 0;
$conversionRates = CurrencyRates::getCurrencyRates();
if ($oldCurrency === 'USD') {
$usdAmount = $oldAmount;
} elseif (array_key_exists($oldCurrency, $conversionRates)) {
$usdAmount = $oldAmount / $conversionRates[$oldCurrency];
} else {
// We can't convert from this unknown currency.
return;
}
if ($defaultCurrency === 'USD') {
$newAmount = floor($usdAmount);
} elseif (array_key_exists($defaultCurrency, $conversionRates)) {
$newAmount = floor($usdAmount * $conversionRates[$defaultCurrency]);
}
$this->setVal('amount', $newAmount);
$this->setVal('currency_code', $defaultCurrency);
$this->logger->info("Unsupported currency {$oldCurrency} forced to {$defaultCurrency}");
// We have a fallback, so let's revalidate.
$this->getValidationErrors(true);
$notify = $this->gateway->getGlobal('NotifyOnConvert');
// If we're configured to notify, or if there are already other errors,
// add a notification message.
if ($notify || !empty($this->validationErrors)) {
$error['general'] = MessageUtils::getCountrySpecificMessage('donate_interface-fallback-currency-notice', $this->getVal('country'), $this->getVal('language'), array($this->gateway->getGlobal('FallbackCurrency')));
$this->gateway->addManualError($error);
}
}