/**
* saves a Mashup to the RDF Store
* An existing mashup is simply overwritten (remove existing, save a new one)
*
* @param Mashup $mashup Mashup Object (possibly containing Chunks)
* @param array $deletedChunks Array of Chunk objects to be deleted from this Mashup (optional)
* @return boolean true if operation was successful
*/
function saveMashup($mashup, $deletedChunks = array())
{
$this->removeMashup($mashup);
$mashupRes = new Resource($mashup->getUri());
$this->rdfModel->add(new Statement($mashupRes, RDF::TYPE(), LOOMP::MASHUP()));
$this->rdfModel->add(new Statement($mashupRes, DC::CREATOR(), new Resource($mashup->getCreatorId())));
$this->rdfModel->add(new Statement($mashupRes, DC::TITLE(), new Literal($mashup->getTitle())));
$this->rdfModel->add(new Statement($mashupRes, DC::CREATED(), new Literal($mashup->getCreateDate())));
$this->rdfModel->add(new Statement($mashupRes, DC::MODIFIED(), new Literal($mashup->getModifyDate())));
$this->rdfModel->add(new Statement($mashupRes, RDF::TYPE(), RDF::SEQ()));
foreach ($mashup->getFragments() as $k => $fragment) {
$this->rdfModel->add(new Statement($mashupRes, new Resource(RDF_NAMESPACE_URI . "_" . ($k + 1)), new Resource($fragment->getUri())));
$this->_saveFragment($fragment);
}
// remove fragments which are not associated with any other mashup
foreach ($deletedChunks as $f) {
if ($this->_fragmentCount($f->getUri()) == 0) {
$this->_removeFragment($f);
}
}
return true;
}
