public function handleUpdateOrganizer(AbstractUpdateOrganizer $updateOrganizer)
    {
        $offer = $this->load($updateOrganizer->getItemId());
        $this->loadOrganizer($updateOrganizer->getOrganizerId());

        $offer->updateOrganizer(
            $updateOrganizer->getOrganizerId()
        );

        $this->offerRepository->save($offer);
    }