Admin_AssetController::treeGetChildsByIdAction PHP Метод

    public function treeGetChildsByIdAction()
    {
        $assets = [];
        $cv = false;
        $asset = Asset::getById($this->getParam("node"));
        if ($asset->hasChilds()) {
            $limit = intval($this->getParam("limit"));
            if (!$this->getParam("limit")) {
                $limit = 100000000;
            }
            $offset = intval($this->getParam("start"));
            if ($this->getParam("view")) {
                $cv = \Pimcore\Model\Element\Service::getCustomViewById($this->getParam("view"));
            }
            // get assets
            $childsList = new Asset\Listing();
            if ($this->getUser()->isAdmin()) {
                $childsList->setCondition("parentId = ? ", $asset->getId());
            } else {
                $userIds = $this->getUser()->getRoles();
                $userIds[] = $this->getUser()->getId();
                $childsList->setCondition("parentId = ? and\n                    (\n                    (select list from users_workspaces_asset where userId in (" . implode(',', $userIds) . ") and LOCATE(CONCAT(path,filename),cpath)=1  ORDER BY LENGTH(cpath) DESC LIMIT 1)=1\n                    or\n                    (select list from users_workspaces_asset where userId in (" . implode(',', $userIds) . ") and LOCATE(cpath,CONCAT(path,filename))=1  ORDER BY LENGTH(cpath) DESC LIMIT 1)=1\n                    )", $asset->getId());
            }
            $childsList->setLimit($limit);
            $childsList->setOffset($offset);
            $childsList->setOrderKey("FIELD(assets.type, 'folder') DESC, assets.filename ASC", false);
            \Pimcore\Model\Element\Service::addTreeFilterJoins($cv, $childsList);
            $childs = $childsList->load();
            foreach ($childs as $childAsset) {
                if ($childAsset->isAllowed("list")) {
                    $assets[] = $this->getTreeNodeConfig($childAsset);
                }
            }
        }
        if ($this->getParam("limit")) {
            $this->_helper->json(["offset" => $offset, "limit" => $limit, "total" => $asset->getChildAmount($this->getUser()), "nodes" => $assets]);
        } else {
            $this->_helper->json($assets);
        }
        $this->_helper->json(false);
    }