/**
  * 更新数据表数据
  */
 private function _updateData($data)
 {
     if (XUtils::method() == 'POST') {
         if (!empty($_FILES['site_logo']['name'])) {
             $this->_getLogo('site_logo', SITE_PATH . 'static/', $data['site_logo']);
         } else {
             unset($data['site_logo']);
         }
         foreach ((array) $data as $key => $row) {
             $row = XUtils::addslashes($row);
             Yii::app()->db->createCommand("REPLACE INTO {{config}}(`variable`, `value`) VALUES('{$key}', '{$row}') ")->execute();
         }
         XXcache::refresh('_config', 3600);
         parent::_backendLogger(array('catalog' => 'update', 'intro' => '更新系统配置,模块:' . $this->action->id));
         XUtils::message('success', '更新完成', $this->createUrl($this->action->id));
     }
 }