private function getNodeValues($model)
    {
        $attribute = "{$this->name}_uc_first";
        return [
            'id'        => $model->id,
            'parent'    => $model->parent_id,
            'name'      => $model->$attribute,
            'level'     => $model->depth,
            'type'      => $model->isLeaf() ? 'file' : 'folder'
        ];
    }