public static function deleteNotif($form_id)
 {
     //notifikasi
     $user = Auth::user();
     $user_from_id = $user->id;
     $user_to = User::where('level', '=', 'admin')->get();
     foreach ($user_to as $u) {
         NotifikasiFormHelper::formDelete($user_from_id, $u->id, $form_id);
     }
     $disposisi = FormKA6DisposisiHelper::getDisposisiKA5($form_id);
     foreach ($disposisi as $dis) {
         if ($dis->id != $user_from_id) {
             //jika bukan diri sendiri
             $user_to_id = $dis->id;
             NotifikasiFormHelper::formDelete($user_from_id, $user_to_id, $form_id);
         }
     }
 }