DefaultController.php

  <?  /**
     * @Route("/{page}", name="index", requirements={"page"="\d+"})
     */
    public function index(PostManager $pm, Request $request, $page = 0)
    {
        $rateRepository = $this->getDoctrine()->getRepository(ExchangeRate::class);
        $rates = $rateRepository->getRates();

        $locale = $request->getLocale();

        $posts = $pm->loadAllLatestPostsByLocaleAndPage($locale, $page);

        $uzbPosts = $pm->loadUZBPostsByLocale($locale);

        if ($request->isXmlHttpRequest()){

            if($posts) {
                return $this->render('default/posts.html.twig', [
                    'posts' => $posts,
                    'locale' => $locale,
                ]);
            }
            else {
                return new Response(null, 404);
            }
        }

        return $this->render('default/index.html.twig', [
            'posts' => $posts,
            'uzbPosts' => $uzbPosts,
            'locale' => $locale,
            'rates' => $rates,
        ]);
    }