/**
* The process to calculate the nested set left, right, and depth.
*
* @param Collection $data
* @param string $id
* @param int $left
* @param int $depth
*
* @return int
* @throws \Exception
*/
private function calculateTree(Collection $data, $id = null, $left = 0, $depth = 0)
{
/** @var NestedSetInterface $node */
$node = $data->matching(Criteria::create()->where(Criteria::expr()->equal('id', $id)))->first();
if (!$node instanceof NestedSetInterface) {
throw new \Exception('Node is not a NestedSetInterface');
}
$left += 1;
$prevRight = $left;
$children = $data->matching(Criteria::create()->where(Criteria::expr()->equal('parentId', $id)));
foreach ($children as $childNode) {
$childNodeId = $childNode->getId();
$prevRight = $this->calculateTree($data, $childNodeId, $prevRight, $depth + 1);
}
$node->setLeft($left);
$node->setRight($prevRight + 1);
$node->setDepth($depth);
$this->nestedSetRepository->save($node);
return $node->getRight();
}
public function __construct(StorageInterface $storage)
{
parent::__construct($storage, 'Movie', '\\Borobudur\\Cqrs\\Test\\MovieReadModel');
}