/**
* Get and register categories root by specified categories IDs
*
* IDs can be arbitrary set of any categories ids.
* Tree with minimal required nodes (all parents and neighbours) will be built.
* If ids are empty, default tree with depth = 2 will be returned.
*
* @param array $ids
* @return mixed
*/
public function getRootByIds($ids)
{
$root = $this->_coreRegistry->registry('root');
if (null === $root) {
$ids = $this->_categoryTree->getExistingCategoryIdsBySpecifiedIds($ids);
$tree = $this->_categoryTree->loadByIds($ids);
$rootId = \Magento\Catalog\Model\Category::TREE_ROOT_ID;
$root = $tree->getNodeById($rootId);
if ($root && $rootId != \Magento\Catalog\Model\Category::TREE_ROOT_ID) {
$root->setIsVisible(true);
} elseif ($root && $root->getId() == \Magento\Catalog\Model\Category::TREE_ROOT_ID) {
$root->setName(__('Root'));
}
$tree->addCollectionData($this->getCategoryCollection());
$this->_coreRegistry->register('root', $root);
}
return $root;
}
