/**
* packItem implementation for QTI
* @see {@link Packable}
* @throws InvalidArgumentException
* @throws common_Exception
*/
public function packItem(core_kernel_classes_Resource $item, $path)
{
$itemPack = null;
$content = $this->getItemContent($path);
//use the QtiParser to transform the QTI XML into an assoc array representation
try {
//load content
$qtiParser = new QtiParser($content);
//validate it
$qtiParser->validate();
if (!$qtiParser->isValid()) {
throw new common_Exception('Invalid QTI content : ' . $qtiParser->displayErrors(false));
}
//parse
$qtiItem = $qtiParser->load();
//then build the ItemPack from the parsed data
if (!is_null($qtiItem)) {
$itemPack = new ItemPack(self::$itemType, $qtiItem->toArray());
$assetParser = new AssetParser($qtiItem, $path);
foreach ($assetParser->extract() as $type => $assets) {
$itemPack->setAssets($type, $assets);
}
}
} catch (common_Exception $e) {
throw new common_Exception('Unable to pack item ' . $item->getUri() . ' : ' . $e->getMessage());
}
return $itemPack;
}
/**
* Provides data to test the bundle
* @return array() the data
*/
public function jsonSerializableProvider()
{
$data = array();
$pack1 = new ItemPack('qti', array('foo' => 'bar'));
$json1 = '{"type":"qti","data":{"foo":"bar"},"assets":[]}';
$data[0] = array($pack1, $json1);
$pack2 = new ItemPack('owi', array('foo' => 'bar'));
$pack2->setAssets('js', array('lodash.js', 'jquery.js'));
$json2 = '{"type":"owi","data":{"foo":"bar"},"assets":{"js":["lodash.js","jquery.js"]}}';
$data[1] = array($pack2, $json2);
return $data;
}
