/**
* Copy given sco and its children.
*
* @param Scorm12Sco $sco
* @param Scorm12Resource $resource
* @param Scorm12Sco $scoParent
*/
private function copySco(Scorm12Sco $sco, Scorm12Resource $resource, Scorm12Sco $scoParent = null)
{
$scoCopy = new Scorm12Sco();
$scoCopy->setScormResource($resource);
$scoCopy->setScoParent($scoParent);
$scoCopy->setEntryUrl($sco->getEntryUrl());
$scoCopy->setIdentifier($sco->getIdentifier());
$scoCopy->setIsBlock($sco->getIsBlock());
$scoCopy->setLaunchData($sco->getLaunchData());
$scoCopy->setMasteryScore($sco->getMasteryScore());
$scoCopy->setMaxTimeAllowed($sco->getMaxTimeAllowed());
$scoCopy->setParameters($sco->getParameters());
$scoCopy->setPrerequisites($sco->getPrerequisites());
$scoCopy->setTimeLimitAction($sco->getTimeLimitAction());
$scoCopy->setTitle($sco->getTitle());
$scoCopy->setVisible($sco->isVisible());
$this->om->persist($scoCopy);
foreach ($sco->getScoChildren() as $scoChild) {
$this->copySco($scoChild, $resource, $scoCopy);
}
}
/**
* Initializes parameters of the SCO defined in attributes of the node.
* It also look for the associated resource if it is a SCO and not a block.
*
* @param Scorm12Sco $sco
* @param \DOMNode $item
* @param \DOMNodeList $resources
*
* @throws InvalidScormArchiveException
*/
private function findAttrParams(Scorm12Sco $sco, \DOMNode $item, \DOMNodeList $resources)
{
$identifier = $item->attributes->getNamedItem('identifier');
$isVisible = $item->attributes->getNamedItem('isvisible');
$identifierRef = $item->attributes->getNamedItem('identifierref');
$parameters = $item->attributes->getNamedItem('parameters');
// throws an Exception if identifier is undefined
if (is_null($identifier)) {
throw new InvalidScormArchiveException('sco_with_no_identifier_message');
}
$sco->setIdentifier($identifier->nodeValue);
// visible is true by default
if (!is_null($isVisible) && $isVisible === 'false') {
$sco->setVisible(false);
} else {
$sco->setVisible(true);
}
// set parameters for SCO entry resource
if (!is_null($parameters)) {
$sco->setParameters($parameters->nodeValue);
}
// check if item is a block or a SCO. A block doesn't define identifierref
if (is_null($identifierRef)) {
$sco->setIsBlock(true);
} else {
$sco->setIsBlock(false);
// retrieve entry URL
$sco->setEntryUrl($this->findEntryUrl($identifierRef->nodeValue, $resources));
}
}
