public function add($data = array())
 {
     if (!$data) {
         $data = I('post');
     }
     if ($this->create($data)) {
         if (parent::add()) {
             return true;
         }
         return false;
     } else {
         return true;
     }
 }
 public function __construct($name = '', $tablePrefix = '', $connection = '')
 {
     parent::__construct($name, $tablePrefix, $connection);
 }