protected static function convertEvent($nefubName, $date, Genre $oGenre, Gender $oGender)
 {
     $oEvent = Event::getByNefubName($nefubName, $date, $oGender);
     if (!$oEvent) {
         $oEvent = new Event();
         $oEvent->nefub_name = $nefubName;
         $oEvent->season_nefub_id = Season::getInstance()->nefub_id;
         $oEvent->date = $date;
         $oEvent->genre_id = $oGenre->getId();
         if ($oGender) {
             $oEvent->gender_id = $oGender->getId();
         }
     }
     $oEvent->save();
     return $oEvent;
 }