/**
* 判断是否可修改
* @access private
* @return true|false
*/
private function verify($status = '10000')
{
$id = get_post_value('bulletin_id');
$m = new Bulletin();
$m->clear();
$m->setTable('vcb_bulletin');
$m->setWhere('bulletin_id', '=', $id);
$m->setWhere('status', '=', $status);
$data = $m->getFieldValue('COUNT(*)');
return $data > 0 ? false : true;
}