public function unread()
    {
        $model = $this->noInitModel;
        return $this->likeCondition($model->initDatetime(), $model->readAtAttribute);
    }
public function unread()
    {
        $model = $this->noInitModel;
        return $this->likeCondition($model->initDatetime(), $model->readAtAttribute);
    }
public function unread ( ) { $ model = $ this -> noInitModel ; return $ this -> likeCondition ( $ model -> initDatetime ( ) , $ model -> readAtAttribute ) ; }
Specify unread message.
@return \static $this
Specify unread message .