public function scaffAction() {
        $db = Zend_Db_Table::getDefaultAdapter();
        $useCache = false;
        if ($this->_getParam('cache', false)) {
            $frontendOptions = array(
                'lifetime' => 7200, // время жизни кэша - 2 часа
                'automatic_serialization' => true
            );

            $backendOptions = array(
                'cache_dir' => APPLICATION_CACHE_DIR // директория, в которой размещаются файлы кэша
            );
            $cache = Zend_Cache::factory('Core', 'File', $frontendOptions, $backendOptions);
            $useCache = true;
        }

        /* for($i=1; $i<=40; $i++) {
          $db->insert('test', array(
          'pid'=>0,
          'title'=>'Категория-родитель 1 уровня '.$i

          ));
          } */
        /*
          $second = array();
          foreach($list as $v) {
          //Генерим предков 2 уровня
          $count = mt_rand(5, 20);
          for($i=1; $i<=$count; $i++) {
          $second[] = $db->insert('test', array(
          'pid'=>$v['id'],
          'title'=>'Категория-потомок 2 уровня '.$i
          ));
          }
          }
          exit(var_dump($second)); */
        /* $list = $db->select()->from('test')->where('id > 2700')->query()->fetchAll();
          foreach($list as $v) {
          //Генерим предков 2 уровня
          $count = mt_rand(0, 10);
          for($i=1; $i<=$count; $i++) {
          $db->insert('test', array(
          'pid'=>$v['id'],
          'title'=>'Категория-потомок 4 уровня '.$i
          ));
          }
          }exit; */

        if ($useCache) {
            $start = microtime(true);
            if (!$container = $cache->load('categories')) {
                $list = $db->select()->from('test')->query()->fetchAll();
                $entries = array();
                foreach ($list as $row) {
                    $entry['id'] = $row['id'];
                    $entry['parent_id'] = $row['pid'];
                    $entry['title'] = $row['title'];
                    $entry['label'] = $row['title'];
                    $entry['external_url'] = '#' . $row['id'];
                    $entry['uri'] = '#' . $row['id'];
                    $entry['class'] = 'nav-item';
                    $entry['active'] = (bool) mt_rand(0, 1);
                    $entries[] = $entry;
                }
                $entries = Core_Helper_Tree::build($entries);
                $container = new Zend_Navigation();
                $container->setPages($entries);
                $cache->save($container, 'categories');
            }
            $this->view->container = $container;
            $this->view->time = microtime(true) - $start;
            $this->view->count = count($container->count());
        } else {

            $start = microtime(true);
            $list = $db->select()->from('test')->query()->fetchAll();
            $entries = array();
            foreach ($list as $row) {
                $entry['id'] = $row['id'];
                $entry['parent_id'] = $row['pid'];
                $entry['title'] = $row['title'];
                $entry['label'] = $row['title'];
                $entry['external_url'] = '#' . $row['id'];
                $entry['uri'] = '#' . $row['id'];
                $entry['class'] = 'nav-item';
                $entry['active'] = (bool) mt_rand(0, 1);
                $entries[] = $entry;
            }
            $entries = Core_Helper_Tree::build($entries);
            $container = new Zend_Navigation();
            $container->setPages($entries);
            $this->view->container = $container;
            $this->view->time = microtime(true) - $start;
            $this->view->count = count($list);
        }
    }