protected function deepCopyPageWithoutChildren(Page $page, Page $parentPage = null)
 {
     $copy = new Page();
     $copy->setId($page->getId());
     $copy->setRouteName($page->getRouteName());
     $copy->setPageAlias($page->getPageAlias());
     $copy->setType($page->getType());
     $copy->setEnabled($page->getEnabled());
     $copy->setName($page->getName());
     $copy->setSlug($page->getSlug());
     $copy->setUrl($page->getUrl());
     $copy->setCustomUrl($page->getCustomUrl());
     $copy->setMetaKeyword($page->getMetaKeyword());
     $copy->setMetaDescription($page->getMetaDescription());
     $copy->setJavascript($page->getJavascript());
     $copy->setStylesheet($page->getStylesheet());
     $copy->setCreatedAt($page->getCreatedAt());
     $copy->setUpdatedAt($page->getUpdatedAt());
     $copy->setTarget($page->getTarget());
     $copy->setTemplateCode($page->getTemplateCode());
     $copy->setDecorate($page->getDecorate());
     $copy->setPosition($page->getPosition());
     $copy->setRequestMethod($page->getRequestMethod());
     $copy->setHeaders($page->getHeaders());
     $copy->setSite($page->getSite());
     $copy->setRawHeaders($page->getRawHeaders());
     $copy->setEdited($page->getEdited());
     $copy->setTitle($page->getTitle());
     $copy->setParent($parentPage ? $parentPage : $page->getParent());
     foreach ($page->getTranslations() as $translation) {
         $translationCopy = $this->deepCopyPageTranslation($translation, $copy);
         $copy->addTranslation($translationCopy);
     }
     foreach ($page->getBlocks() as $block) {
         if (!$block->getParent()) {
             $blockCopy = $this->deepCopyBlock($block, $copy);
             $this->entityManager->persist($blockCopy);
         }
     }
     $this->entityManager->persist($copy);
     return $copy;
 }
 /**
  * @param Page $page
  * @return mixed
  */
 public function findSnapshotLinksTo($page)
 {
     return $this->getEntityManager()->createQuery(sprintf("SELECT p FROM %s p JOIN p.snapshots s WHERE s.content LIKE '%%{{ url(%d) }}%%'", $this->class, $page->getId()))->execute();
 }