/**
* {@inheritDoc}
*
* Format:
*
* <Shipment> (Optional)
* <Code>Ship_Code</Code> (Optional)
* <Cost>1</Cost> (Optional)
* <MarkAsShipped>Yes</MarkAsShipped> (Optional)
* <TrackingNumber>1111111111</TrackingNumber> (Required)
* <TrackingType>FedEx</TrackingType> (Required)
* <ShipDate> (Optional)
* <Day>7</Day>
* <Month>9</Month>
* <Year>2012</Year>
* </ShipDate>
* </Shipment>
*/
public function toXml($version = Version::CURRENT, array $options = array())
{
$xmlObject = new SimpleXMLElement('<Shipment />');
$xmlObject->addChild('TrackingNumber', $this->getTrackingNumber());
$xmlObject->addChild('TrackingType', $this->getTrackingType());
$xmlObject->addChild('MarkAsShipped', $this->getMarkAsShipped() ? 'Yes' : 'No');
if ($this->getCode()) {
$xmlObject->addChild('Code', $this->getCode());
}
if ($this->getCost()) {
$xmlObject->addChild('Cost', $this->getCost());
}
if ($this->getShipDate() instanceof \DateTime) {
$date = $xmlObject->addChild('ShipDate');
XmlHelper::dateToXml($date, $this->getShipDate());
}
return $xmlObject;
}