/**
* Return exchange rates from $from to $to
*
* @param string $fromCode ISO code of source currency
* @param string|array $toCodes ISO code of target currency, or array with ISO codes of targets
*
* @return array in the form of 'ISOCODE' => (float) exchange rate
*/
public function getExchangeRates($fromCode, $toCodes = array())
{
if (!is_array($toCodes)) {
$toCodes = array($toCodes);
}
if (empty($this->exchangeRates)) {
$this->exchangeRates = $this->exchangeRatesAdapter->getExchangeRates();
}
if (empty($this->exchangeRates)) {
return [];
}
$baseExchangeRate = $this->exchangeRates[$fromCode];
$exchangeRates = array();
foreach ($toCodes as $code) {
$exchangeRates[$code] = $this->exchangeRates[$code] / $baseExchangeRate;
}
return $exchangeRates;
}
/**
* Populates the exchange rates.
*
* @return $this Self object
*/
public function populate()
{
$currenciesCodes = [];
$currencies = $this->currencyRepository->findAll();
/**
* Create an array of all active currency codes.
*
* @var CurrencyInterface $currency
*/
foreach ($currencies as $currency) {
if ($currency->getIso() != $this->defaultCurrency) {
$currenciesCodes[] = $currency->getIso();
}
}
/**
* Get rates for all of the enabled and active currencies.
*/
$rates = $this->currencyExchangeRatesAdapter->getExchangeRates($this->defaultCurrency, $currenciesCodes);
/**
* @var CurrencyInterface $sourceCurrency
*/
$sourceCurrency = $this->currencyRepository->findOneBy(['iso' => $this->defaultCurrency]);
/**
* [
* "EUR" => "1,378278",
* "YEN" => "0,784937",
* ].
*/
foreach ($rates as $code => $rate) {
/**
* @var CurrencyInterface $targetCurrency
*/
$targetCurrency = $this->currencyRepository->findOneBy(['iso' => $code]);
if (!$targetCurrency instanceof CurrencyInterface) {
continue;
}
/**
* check if this is a new exchange rate, or if we have to
* create a new one.
*/
$exchangeRate = $this->currencyExchangeRateObjectDirector->findOneBy(['sourceCurrency' => $sourceCurrency, 'targetCurrency' => $targetCurrency]);
if (!$exchangeRate instanceof CurrencyExchangeRateInterface) {
$exchangeRate = $this->currencyExchangeRateObjectDirector->create();
}
$exchangeRate->setExchangeRate($rate)->setSourceCurrency($sourceCurrency)->setTargetCurrency($targetCurrency);
$this->currencyExchangeRateObjectDirector->save($exchangeRate);
}
return $this;
}
