public static function get_instance()
{
if (!self::$_instance) {
self::$_instance = new self();
}
return self::$_instance;
}
private function _save()
{
$pid = intval($this->_param['pid']);
$hostname = trim($this->_param['hostname']);
$hostname = explode("\n", $hostname);
$biz = Biz_Host::get_instance();
$biz->delete_host($pid);
foreach ($hostname as $h) {
$biz->insert_host($pid, trim($h));
}
$this->_response->redirect(PageHelper::get_domain() . "/project/op?pid={$pid}");
}