--- /dev/null
+<?php declare(strict_types=1);
+
+/*
+ * This file is part of the Rapsys BlogBundle package.
+ *
+ * (c) Raphaël Gertz <symfony@rapsys.eu>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Rapsys\BlogBundle\Controller;
+
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+use Rapsys\BlogBundle\Entity\Article;
+use Rapsys\BlogBundle\Entity\Keyword;
+
+/**
+ * {@inheritdoc}
+ */
+class KeywordController extends AbstractController {
+ /**
+ * The keyword index
+ *
+ * Display keywords
+ *
+ * @param Request $request The request instance
+ * @return Response The rendered view
+ */
+ public function index(Request $request): Response {
+ //With keywords
+ if ($count = $this->doctrine->getRepository(Keyword::class)->findCountAsInt()) {
+ //Negative page or over page
+ if (($page = (int) $request->get('page', 0)) < 0 || $page > $count / $this->limit) {
+ //Throw 404
+ throw $this->createNotFoundException($this->translator->trans('Unable to find keywords (page: %page%)', ['%page%' => $page]));
+ }
+
+ //Without keywords
+ if (empty($this->context['keywords'] = $this->doctrine->getRepository(Keyword::class)->findAllAsArray($page, $this->limit))) {
+ //Throw 404
+ throw $this->createNotFoundException($this->translator->trans('Unable to find keywords'));
+ }
+
+ //With prev link
+ if ($page > 0) {
+ //Set keywords older
+ $this->context['head']['prev'] = $this->context['keywords_prev'] = $this->generateUrl($request->attributes->get('_route'), ['page' => $page - 1]+$request->attributes->get('_route_params'));
+ }
+
+ //With next link
+ if ($count > ($page + 1) * $this->limit) {
+ //Set keywords newer
+ $this->context['head']['next'] = $this->context['keywords_next'] = $this->generateUrl($request->attributes->get('_route'), ['page' => $page + 1]+$request->attributes->get('_route_params'));
+ }
+
+ //Set modified
+ $this->modified = max(array_map(function ($v) { return $v['modified']; }, $this->context['keywords']));
+ //Without keywords
+ } else {
+ //Set empty keywords
+ $this->context['keywords'] = [];
+
+ //Set empty modified
+ $this->modified = new \DateTime('-1 year');
+ }
+
+ //Create response
+ $response = new Response();
+
+ //With logged user
+ if ($this->checker->isGranted('IS_AUTHENTICATED_REMEMBERED')) {
+ //Set last modified
+ $response->setLastModified(new \DateTime('-1 year'));
+
+ //Set as private
+ $response->setPrivate();
+ //Without logged user
+ } else {
+ //Set etag
+ //XXX: only for public to force revalidation by last modified
+ $response->setEtag(md5(serialize($this->context['keywords'])));
+
+ //Set last modified
+ $response->setLastModified($this->modified);
+
+ //Set as public
+ $response->setPublic();
+
+ //Without role and modification
+ if ($response->isNotModified($request)) {
+ //Return 304 response
+ return $response;
+ }
+ }
+
+ //Set keywords
+ $this->context['head']['keywords'] = implode(
+ ', ',
+ //Use closure to extract each unique article keywords sorted
+ (function ($t) {
+ //Return array
+ $r = [];
+
+ //Iterate on keywords
+ foreach($t as $k) {
+ //Set keyword
+ $r[$k['title']] = $k['title'];
+ }
+
+ //Sort array
+ sort($r);
+
+ //Return array
+ return $r;
+ })($this->context['keywords'])
+ );
+
+ //Set title
+ $this->context['title'] = $this->translator->trans('Keywords list');
+
+ //Set description
+ $this->context['description'] = $this->translator->trans('Welcome to raphaël\'s developer diary keyword listing');
+
+ //Render the view
+ return $this->render('@RapsysBlog/keyword/index.html.twig', $this->context, $response);
+ }
+
+ /**
+ * The keyword view
+ *
+ * Display keyword articles
+ *
+ * @param Request $request The request instance
+ * @param integer $id The keyword id
+ * @param ?string $slug The keyword slug
+ * @return Response The rendered view
+ */
+ public function view(Request $request, int $id, ?string $slug): Response {
+ //Without keyword
+ if (empty($this->context['keyword'] = $this->doctrine->getRepository(Keyword::class)->findByIdAsArray($id))) {
+ //Throw 404
+ throw $this->createNotFoundException($this->translator->trans('Unable to find keyword: %id%', ['%id%' => $id]));
+ }
+
+ //With invalid slug
+ if ($slug !== $this->context['keyword']['slug']) {
+ //Redirect on correctly spelled keyword
+ return $this->redirectToRoute('rapsys_blog_keyword_view', ['id' => $this->context['keyword']['id'], 'slug' => $this->context['keyword']['slug']], Response::HTTP_MOVED_PERMANENTLY);
+ }
+
+ //Set modified
+ $this->modified = $this->context['keyword']['modified'];
+
+ //Create response
+ $response = new Response();
+
+ //With logged user
+ if ($this->checker->isGranted('IS_AUTHENTICATED_REMEMBERED')) {
+ //Set last modified
+ $response->setLastModified(new \DateTime('-1 year'));
+
+ //Set as private
+ $response->setPrivate();
+ //Without logged user
+ } else {
+ //Set etag
+ //XXX: only for public to force revalidation by last modified
+ $response->setEtag(md5(serialize($this->context['keyword'])));
+
+ //Set last modified
+ $response->setLastModified($this->modified);
+
+ //Set as public
+ $response->setPublic();
+
+ //Without role and modification
+ if ($response->isNotModified($request)) {
+ //Return 304 response
+ return $response;
+ }
+ }
+
+ //Set keywords
+ $this->context['head']['keywords'] = implode(
+ ', ',
+ //Use closure to extract each unique article keywords sorted
+ (function ($t) {
+ //Return array
+ $r = [];
+
+ //Iterate on articles
+ foreach($t as $a) {
+ //Non empty keywords
+ if (!empty($a['keywords'])) {
+ //Iterate on keywords
+ foreach($a['keywords'] as $k) {
+ //Set keyword
+ $r[$k['title']] = $k['title'];
+ }
+ }
+ }
+
+ //Sort array
+ sort($r);
+
+ //Return array
+ return $r;
+ })($this->context['keyword']['articles'])
+ );
+
+ //Set title
+ $this->context['title'] = $this->context['keyword']['title'];
+
+ //Set description
+ $this->context['description'] = $this->context['keyword']['description'];
+
+ //Render the view
+ return $this->render('@RapsysBlog/keyword/view.html.twig', $this->context, $response);
+ }
+}