public function deleteSection(Section $section)
{
$page_repo = $this->getEntityManager()->getRepository('BackBee\\CoreDomain\\NestedNode\\Page');
$pages = $page_repo->createQueryBuilder('p')->andParentIs($section->getPage())->andIsNotSection()->getQuery()->execute();
foreach ($pages as $page) {
$page_repo->deletePage($page);
}
$sections = $page_repo->createQueryBuilder('p')->andParentIs($section->getPage())->andIsSection()->getQuery()->execute();
foreach ($sections as $section) {
$this->deleteSection($section->getSection());
}
$this->getEntityManager()->remove($section);
}