public function updateAlias($id, $name)
 {
     $alias = Cloud_Model_Utli_CloudUtli::stripUnicode($name);
     $alias = preg_replace(array('/\\s+/', '/[^A-Za-z0-9-]/', '/^[-]/', '/-$/'), array('-', '', '', ''), strtolower($alias));
     $data = array('alias' => $alias);
     $where = array('id = ?' => $id);
     $this->getDbTable()->update($data, $where);
 }