public function addHistory($user, $type, $message = '', $param = array())
 {
     connectionUserHistoryModel::create()->insert(array('user' => (int) $user, 'type' => $type, 'message' => $message, 'param' => serialize($param), 'date' => (int) strtotime('now')));
 }
 function execute()
 {
     $history = connectionUserHistoryModel::create()->get((int) Request::get('id'));
     $this->smarty->assign('history', $history);
 }