comment enlever la duplication de la fonction readNotificationAction (elle est utilisée dans d'autres controleur)?

HomeController.php

<?php

namespace AppBundle\Controller;

use AppBundle\Service\VisionCriticalApi;
use DateTime;
use EasyWordpressBundle\Annotation\TemplateName;
use EasyWordpressBundle\Controller\WordpressController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use AppBundle\Service;

/**
 * Class HomeController.
 *
 * @author Thomas Talbot <thomas.talbot@zephyr-web.fr>
 */
class HomeController extends WordpressController
{

/**
     * Mark a notification as read
     *
     * @Route("/read-notification",
     *     options={"expose"=true},
     *     name="read_notification",
     * )
     *
     * @param    Request $request The current user request
     * @return   Response
     */
    public function readNotificationAction(Request $request)
    {
        if ($request->isXmlHttpRequest()) {
            $response = new Response();
            $data = [];

            if ($request->isMethod('post')) {
                if (!empty($request->request->get('notifId'))) {
                    $notificationId = $request->request->get('notifId');
                    $wpUser = wp_get_current_user();
                    // Update notification status
                    $soNotif = new \SoNotifications();
                    $unreadNotifs = $soNotif->updateNotifStatus($notificationId, $wpUser->ID);

                    $data = ['status' => 'success', 'unreadNotifs' => $unreadNotifs];
                }
            } else {
                $data = ['status' => 'failed', 'message' => 'Action non autorisée !'];
            }

            $data = json_encode($data);
            $response->headers->set('Content-Type', 'application/json');
            $response->setContent($data);

            return $response;
        } else {
            return new Response(['status' => 'failed', 'message' => 'demande non autorisée !']);
        }
    }
}