/**
* Saves $parent with section if need
*
* @param Page $parent
*
* @return Page
*/
private function insureParentIsSection(Page $parent)
{
if (!$parent->hasMainSection()) {
$this->em->getRepository('BackBee\\CoreDomain\\NestedNode\\Page')->saveWithSection($parent);
$this->em->flush($parent);
}
return $parent;
}
/**
* Returns the maximum position of children of $page.
*
* @param Page $page
*
* @return integer
*/
private function getMaxPosition(Page $page)
{
if (false === $page->hasMainSection()) {
return 0;
}
$query = $this->createQueryBuilder('p');
$max = $query->select($query->expr()->max('p._position'))->andParentIs($page)->getQuery()->getResult(\Doctrine\ORM\Query::HYDRATE_SINGLE_SCALAR);
return null === $max ? 0 : $max;
}
/**
* Sets the parent node.
*
* @param Page $parent
*
* @return Page
*/
public function setParent(Page $parent)
{
if (!$parent->hasMainSection()) {
throw new InvalidArgumentException('A parent page must be a section');
}
if (!$this->hasMainSection() || $this->isRoot()) {
$this->setSection($parent->getSection());
} else {
$this->getSection()->setParent($parent->getSection());
}
return $this;
}
/**
* Add query part to select a specific subbranch of tree.
*
* @param Page|null $page The parent page to check or null to select roots
*
* @return PageQueryBuilder
*/
public function andParentIs(Page $page = null)
{
if (null === $page) {
// Looking for root
return $this->andWhere($this->getSectionAlias() . '._parent IS NULL')->andWhere($this->getSectionAlias() . ' = ' . $this->getAlias());
}
if (false === $page->hasMainSection()) {
// Page is leaf, no child
return $this->andWhere('1 = 0');
}
$suffix = $this->getSuffix();
$qOr = $this->expr()->orX();
$qOr->add($this->getSectionAlias() . '._parent = :parent' . $suffix)->add($this->getAlias() . '._section = :parent' . $suffix);
return $this->andWhere($qOr)->andWhere($this->getAlias() . '._level = :level' . $suffix)->setParameter('parent' . $suffix, $page->getSection())->setParameter('level' . $suffix, $page->getLevel() + 1);
}