/**
* Return the service for Qti Result
*
* @return QtiResultsService
*/
protected function getQtiResultService()
{
if (!$this->service) {
$this->service = QtiResultsService::singleton();
$this->service->setServiceLocator($this->getServiceManager());
}
return $this->service;
}
/**
* Download delivery execution XML
*
* @author Gyula Szucs, <*****@*****.**>
* @throws \common_exception_MissingParameter
* @throws \common_exception_NotFound
* @throws \common_exception_ValidationFailed
*/
public function downloadXML()
{
try {
if (!$this->hasRequestParameter('deliveryExecution')) {
throw new \common_exception_MissingParameter('deliveryExecution is missing from the request.', $this->getRequestURI());
}
if (empty($this->getRequestParameter('deliveryExecution'))) {
throw new \common_exception_ValidationFailed('deliveryExecution cannot be empty');
}
$qtiResultService = QtiResultsService::singleton();
$qtiResultService->setServiceLocator($this->getServiceManager());
$deliveryExecution = $qtiResultService->getDeliveryExecutionById($this->getRequestParameter('deliveryExecution'));
if (empty($deliveryExecution)) {
throw new \common_exception_NotFound('Delivery execution not found.');
}
$xml = $qtiResultService->getDeliveryExecutionXml($deliveryExecution);
header('Set-Cookie: fileDownload=true');
//used by jquery file download to find out the download has been triggered ...
setcookie("fileDownload", "true", 0, "/");
header('Content-Disposition: attachment; filename="delivery_execution_' . date('YmdHis') . '.xml"');
header('Content-Type: application/xml');
echo $xml;
} catch (\common_exception_Error $e) {
$this->returnJson(array('error' => $e->getMessage()));
}
}