getLast() public static méthode

public static getLast ( $task_id = null, $count = 100 )
 public function actionTaskLog()
 {
     $task_id = isset($_GET['task_id']) ? $_GET['task_id'] : null;
     $runs = TaskRun::getLast($task_id);
     return $this->render('runs_list', array('runs' => $runs));
 }