/**
* Queries for all resources pointing to the current one, and declares resources.
*
* @param $resource
*/
private function removeUplinks(BaseResource $resource)
{
/** @var Graph $result */
$result = $this->_rm->createQueryBuilder()->construct('?s a ?t; ?p <' . $resource->getUri() . '>')->where('?s a ?t; ?p <' . $resource->getUri() . '>')->getQuery()->execute();
$resources = $result->resources();
/** @var \Conjecto\Nemrod\Resource $re */
foreach ($resources as $re) {
$this->registerResource($re);
foreach ($result->properties($re->getUri()) as $prop) {
if ($prop !== 'rdf:type') {
$re->delete($prop);
}
}
}
}
/**
* @param BaseResource $resource
*
* @return \Conjecto\Nemrod\Resource
*/
public function getSnapshot($resource)
{
//check if $resource is known by getting type.
//if uri is not known or result is null, resource is not known
try {
$typ = $this->get($resource->getUri(), 'rdf:type');
if (!$typ) {
return;
}
} catch (Exception $e) {
return;
}
$res = $this->resource($resource->getUri());
return $res;
}
