Admin_ObjectController::treeGetChildsByIdAction PHP Метод

    public function treeGetChildsByIdAction()
    {
        $object = Object\AbstractObject::getById($this->getParam("node"));
        $objectTypes = null;
        $objects = [];
        $cv = false;
        $offset = 0;
        $total = 0;
        if ($object instanceof Object\Concrete) {
            $class = $object->getClass();
            if ($class->getShowVariants()) {
                $objectTypes = [Object\AbstractObject::OBJECT_TYPE_FOLDER, Object\AbstractObject::OBJECT_TYPE_OBJECT, Object\AbstractObject::OBJECT_TYPE_VARIANT];
            }
        }
        if (!$objectTypes) {
            $objectTypes = [Object\AbstractObject::OBJECT_TYPE_OBJECT, Object\AbstractObject::OBJECT_TYPE_FOLDER];
        }
        if ($object->hasChilds($objectTypes)) {
            $limit = intval($this->getParam("limit"));
            if (!$this->getParam("limit")) {
                $limit = 100000000;
            }
            $offset = intval($this->getParam("start"));
            $childsList = new Object\Listing();
            $condition = "objects.o_parentId = '" . $object->getId() . "'";
            // custom views start
            if ($this->getParam("view")) {
                $cv = \Pimcore\Model\Element\Service::getCustomViewById($this->getParam("view"));
                if ($cv["classes"]) {
                    $cvConditions = [];
                    $cvClasses = explode(",", $cv["classes"]);
                    foreach ($cvClasses as $cvClass) {
                        $cvConditions[] = "objects.o_classId = '" . $cvClass . "'";
                    }
                    $cvConditions[] = "objects.o_type = 'folder'";
                    if (count($cvConditions) > 0) {
                        $condition .= " AND (" . implode(" OR ", $cvConditions) . ")";
                    }
                }
            }
            // custom views end
            if (!$this->getUser()->isAdmin()) {
                $userIds = $this->getUser()->getRoles();
                $userIds[] = $this->getUser()->getId();
                $condition .= " AND (\n                                                    (select list from users_workspaces_object where userId in (" . implode(',', $userIds) . ") and LOCATE(CONCAT(o_path,o_key),cpath)=1  ORDER BY LENGTH(cpath) DESC LIMIT 1)=1\n                                                    OR\n                                                    (select list from users_workspaces_object where userId in (" . implode(',', $userIds) . ") and LOCATE(cpath,CONCAT(o_path,o_key))=1  ORDER BY LENGTH(cpath) DESC LIMIT 1)=1\n                                                 )";
            }
            $childsList->setCondition($condition);
            $childsList->setLimit($limit);
            $childsList->setOffset($offset);
            $childsList->setOrderKey("FIELD(objects.o_type, 'folder') DESC, objects.o_key ASC", false);
            $childsList->setObjectTypes($objectTypes);
            Element\Service::addTreeFilterJoins($cv, $childsList);
            $childs = $childsList->load();
            foreach ($childs as $child) {
                $tmpObject = $this->getTreeNodeConfig($child);
                if ($child->isAllowed("list")) {
                    $objects[] = $tmpObject;
                }
            }
            //pagination for custom view
            $total = $cv ? $childsList->count() : $object->getChildAmount([Object\AbstractObject::OBJECT_TYPE_OBJECT, Object\AbstractObject::OBJECT_TYPE_FOLDER, Object\AbstractObject::OBJECT_TYPE_VARIANT], $this->getUser());
        }
        //Hook for modifying return value - e.g. for changing permissions based on object data
        //data need to wrapped into a container in order to pass parameter to event listeners by reference so that they can change the values
        $returnValueContainer = new Model\Tool\Admin\EventDataContainer($objects);
        \Pimcore::getEventManager()->trigger("admin.object.treeGetChildsById.preSendData", $this, ["returnValueContainer" => $returnValueContainer]);
        if ($this->getParam("limit")) {
            $this->_helper->json(["offset" => $offset, "limit" => $limit, "total" => $total, "nodes" => $returnValueContainer->getData(), "fromPaging" => intval($this->getParam("fromPaging"))]);
        } else {
            $this->_helper->json($returnValueContainer->getData());
        }
    }