/**
* {@inheritdoc}
*/
public function getChildren(PageInterface $parent)
{
if (!isset($this->children[$parent->getId()])) {
$date = new \Datetime();
$parameters = array('publicationDateStart' => $date, 'publicationDateEnd' => $date, 'parentId' => $parent->getId());
$manager = $this->registry->getManagerForClass($this->snapshotManager->getClass());
if (!$manager instanceof EntityManagerInterface) {
throw new \RuntimeException('Invalid entity manager type');
}
$snapshots = $manager->createQueryBuilder()->select('s')->from($this->snapshotManager->getClass(), 's')->where('s.parentId = :parentId and s.enabled = 1')->andWhere('s.publicationDateStart <= :publicationDateStart AND ( s.publicationDateEnd IS NULL OR s.publicationDateEnd >= :publicationDateEnd )')->orderBy('s.position')->setParameters($parameters)->getQuery()->execute();
$pages = array();
foreach ($snapshots as $snapshot) {
$page = new SnapshotPageProxy($this->snapshotManager, $this, $snapshot);
$pages[$page->getId()] = $page;
}
$this->children[$parent->getId()] = new \Doctrine\Common\Collections\ArrayCollection($pages);
}
return $this->children[$parent->getId()];
}
