public function init()
{
parent::init();
$this->sourceCurrency = self::SOURCE_CURRENCY;
if ($this->exchangeRateDate == NULL) {
$this->exchangeRateDate = new Moment();
} elseif (is_string($this->exchangeRateDate)) {
$this->exchangeRateDate = new Moment($this->exchangeRateDate);
}
$today = new Moment();
if ($today->isBefore($this->exchangeRateDate)) {
throw new CurrencyExchangeRateException('You cannot get exchange rate for future. Today:' . $today->format() . ' Request date:' . $this->exchangeRateDate->format());
}
if ($this->linkDir == null) {
$this->linkDir = 'http://www.nbp.pl/kursy/xml';
}
if ($this->linkList == null) {
$year = '';
if ($this->exchangeRateDate->getYear() != $today->getYear()) {
$year = $this->exchangeRateDate->getYear();
}
$this->linkList = "http://www.nbp.pl/kursy/xml/dir{$year}.txt";
}
}
