Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\node\Controller;
Chris@0: 
Chris@0: use Drupal\Component\Utility\Xss;
Chris@0: use Drupal\Core\Controller\ControllerBase;
Chris@0: use Drupal\Core\Datetime\DateFormatterInterface;
Chris@0: use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
Chris@18: use Drupal\Core\Entity\EntityRepositoryInterface;
Chris@0: use Drupal\Core\Render\RendererInterface;
Chris@0: use Drupal\Core\Url;
Chris@0: use Drupal\node\NodeStorageInterface;
Chris@0: use Drupal\node\NodeTypeInterface;
Chris@0: use Drupal\node\NodeInterface;
Chris@0: use Symfony\Component\DependencyInjection\ContainerInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Returns responses for Node routes.
Chris@0:  */
Chris@0: class NodeController extends ControllerBase implements ContainerInjectionInterface {
Chris@0: 
Chris@0:   /**
Chris@0:    * The date formatter service.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Datetime\DateFormatterInterface
Chris@0:    */
Chris@0:   protected $dateFormatter;
Chris@0: 
Chris@0:   /**
Chris@0:    * The renderer service.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Render\RendererInterface
Chris@0:    */
Chris@0:   protected $renderer;
Chris@0: 
Chris@0:   /**
Chris@18:    * The entity repository service.
Chris@18:    *
Chris@18:    * @var \Drupal\Core\Entity\EntityRepositoryInterface
Chris@18:    */
Chris@18:   protected $entityRepository;
Chris@18: 
Chris@18:   /**
Chris@0:    * Constructs a NodeController object.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Datetime\DateFormatterInterface $date_formatter
Chris@0:    *   The date formatter service.
Chris@0:    * @param \Drupal\Core\Render\RendererInterface $renderer
Chris@0:    *   The renderer service.
Chris@18:    * @param \Drupal\Core\Entity\EntityRepositoryInterface $entity_repository
Chris@18:    *   The entity repository.
Chris@0:    */
Chris@18:   public function __construct(DateFormatterInterface $date_formatter, RendererInterface $renderer, EntityRepositoryInterface $entity_repository = NULL) {
Chris@0:     $this->dateFormatter = $date_formatter;
Chris@0:     $this->renderer = $renderer;
Chris@18:     if (!$entity_repository) {
Chris@18:       @trigger_error('The entity.repository service must be passed to NodeController::__construct(), it is required before Drupal 9.0.0. See https://www.drupal.org/node/2549139.', E_USER_DEPRECATED);
Chris@18:       $entity_repository = \Drupal::service('entity.repository');
Chris@18:     }
Chris@18:     $this->entityRepository = $entity_repository;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public static function create(ContainerInterface $container) {
Chris@0:     return new static(
Chris@0:       $container->get('date.formatter'),
Chris@18:       $container->get('renderer'),
Chris@18:       $container->get('entity.repository')
Chris@0:     );
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Displays add content links for available content types.
Chris@0:    *
Chris@0:    * Redirects to node/add/[type] if only one content type is available.
Chris@0:    *
Chris@0:    * @return array|\Symfony\Component\HttpFoundation\RedirectResponse
Chris@0:    *   A render array for a list of the node types that can be added; however,
Chris@0:    *   if there is only one node type defined for the site, the function
Chris@0:    *   will return a RedirectResponse to the node add page for that one node
Chris@0:    *   type.
Chris@0:    */
Chris@0:   public function addPage() {
Chris@0:     $build = [
Chris@0:       '#theme' => 'node_add_list',
Chris@0:       '#cache' => [
Chris@18:         'tags' => $this->entityTypeManager()->getDefinition('node_type')->getListCacheTags(),
Chris@0:       ],
Chris@0:     ];
Chris@0: 
Chris@0:     $content = [];
Chris@0: 
Chris@0:     // Only use node types the user has access to.
Chris@18:     foreach ($this->entityTypeManager()->getStorage('node_type')->loadMultiple() as $type) {
Chris@18:       $access = $this->entityTypeManager()->getAccessControlHandler('node')->createAccess($type->id(), NULL, [], TRUE);
Chris@0:       if ($access->isAllowed()) {
Chris@0:         $content[$type->id()] = $type;
Chris@0:       }
Chris@0:       $this->renderer->addCacheableDependency($build, $access);
Chris@0:     }
Chris@0: 
Chris@0:     // Bypass the node/add listing if only one content type is available.
Chris@0:     if (count($content) == 1) {
Chris@0:       $type = array_shift($content);
Chris@0:       return $this->redirect('node.add', ['node_type' => $type->id()]);
Chris@0:     }
Chris@0: 
Chris@0:     $build['#content'] = $content;
Chris@0: 
Chris@0:     return $build;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Provides the node submission form.
Chris@0:    *
Chris@0:    * @param \Drupal\node\NodeTypeInterface $node_type
Chris@0:    *   The node type entity for the node.
Chris@0:    *
Chris@0:    * @return array
Chris@0:    *   A node submission form.
Chris@0:    */
Chris@0:   public function add(NodeTypeInterface $node_type) {
Chris@18:     $node = $this->entityTypeManager()->getStorage('node')->create([
Chris@0:       'type' => $node_type->id(),
Chris@0:     ]);
Chris@0: 
Chris@0:     $form = $this->entityFormBuilder()->getForm($node);
Chris@0: 
Chris@0:     return $form;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Displays a node revision.
Chris@0:    *
Chris@0:    * @param int $node_revision
Chris@0:    *   The node revision ID.
Chris@0:    *
Chris@0:    * @return array
Chris@16:    *   An array suitable for \Drupal\Core\Render\RendererInterface::render().
Chris@0:    */
Chris@0:   public function revisionShow($node_revision) {
Chris@18:     $node = $this->entityTypeManager()->getStorage('node')->loadRevision($node_revision);
Chris@18:     $node = $this->entityRepository->getTranslationFromContext($node);
Chris@18:     $node_view_controller = new NodeViewController($this->entityTypeManager(), $this->renderer, $this->currentUser(), $this->entityRepository);
Chris@0:     $page = $node_view_controller->view($node);
Chris@0:     unset($page['nodes'][$node->id()]['#cache']);
Chris@0:     return $page;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Page title callback for a node revision.
Chris@0:    *
Chris@0:    * @param int $node_revision
Chris@0:    *   The node revision ID.
Chris@0:    *
Chris@0:    * @return string
Chris@0:    *   The page title.
Chris@0:    */
Chris@0:   public function revisionPageTitle($node_revision) {
Chris@18:     $node = $this->entityTypeManager()->getStorage('node')->loadRevision($node_revision);
Chris@18:     return $this->t('Revision of %title from %date', ['%title' => $node->label(), '%date' => $this->dateFormatter->format($node->getRevisionCreationTime())]);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Generates an overview table of older revisions of a node.
Chris@0:    *
Chris@0:    * @param \Drupal\node\NodeInterface $node
Chris@0:    *   A node object.
Chris@0:    *
Chris@0:    * @return array
Chris@16:    *   An array as expected by \Drupal\Core\Render\RendererInterface::render().
Chris@0:    */
Chris@0:   public function revisionOverview(NodeInterface $node) {
Chris@0:     $account = $this->currentUser();
Chris@0:     $langcode = $node->language()->getId();
Chris@0:     $langname = $node->language()->getName();
Chris@0:     $languages = $node->getTranslationLanguages();
Chris@0:     $has_translations = (count($languages) > 1);
Chris@18:     $node_storage = $this->entityTypeManager()->getStorage('node');
Chris@0:     $type = $node->getType();
Chris@0: 
Chris@0:     $build['#title'] = $has_translations ? $this->t('@langname revisions for %title', ['@langname' => $langname, '%title' => $node->label()]) : $this->t('Revisions for %title', ['%title' => $node->label()]);
Chris@0:     $header = [$this->t('Revision'), $this->t('Operations')];
Chris@0: 
Chris@0:     $revert_permission = (($account->hasPermission("revert $type revisions") || $account->hasPermission('revert all revisions') || $account->hasPermission('administer nodes')) && $node->access('update'));
Chris@0:     $delete_permission = (($account->hasPermission("delete $type revisions") || $account->hasPermission('delete all revisions') || $account->hasPermission('administer nodes')) && $node->access('delete'));
Chris@0: 
Chris@0:     $rows = [];
Chris@0:     $default_revision = $node->getRevisionId();
Chris@14:     $current_revision_displayed = FALSE;
Chris@0: 
Chris@0:     foreach ($this->getRevisionIds($node, $node_storage) as $vid) {
Chris@0:       /** @var \Drupal\node\NodeInterface $revision */
Chris@0:       $revision = $node_storage->loadRevision($vid);
Chris@0:       // Only show revisions that are affected by the language that is being
Chris@0:       // displayed.
Chris@0:       if ($revision->hasTranslation($langcode) && $revision->getTranslation($langcode)->isRevisionTranslationAffected()) {
Chris@0:         $username = [
Chris@0:           '#theme' => 'username',
Chris@0:           '#account' => $revision->getRevisionUser(),
Chris@0:         ];
Chris@0: 
Chris@0:         // Use revision link to link to revisions that are not active.
Chris@0:         $date = $this->dateFormatter->format($revision->revision_timestamp->value, 'short');
Chris@14: 
Chris@14:         // We treat also the latest translation-affecting revision as current
Chris@14:         // revision, if it was the default revision, as its values for the
Chris@14:         // current language will be the same of the current default revision in
Chris@14:         // this case.
Chris@14:         $is_current_revision = $vid == $default_revision || (!$current_revision_displayed && $revision->wasDefaultRevision());
Chris@14:         if (!$is_current_revision) {
Chris@0:           $link = $this->l($date, new Url('entity.node.revision', ['node' => $node->id(), 'node_revision' => $vid]));
Chris@0:         }
Chris@0:         else {
Chris@18:           $link = $node->toLink($date)->toString();
Chris@14:           $current_revision_displayed = TRUE;
Chris@0:         }
Chris@0: 
Chris@0:         $row = [];
Chris@0:         $column = [
Chris@0:           'data' => [
Chris@0:             '#type' => 'inline_template',
Chris@0:             '#template' => '{% trans %}{{ date }} by {{ username }}{% endtrans %}{% if message %}<p class="revision-log">{{ message }}</p>{% endif %}',
Chris@0:             '#context' => [
Chris@0:               'date' => $link,
Chris@0:               'username' => $this->renderer->renderPlain($username),
Chris@0:               'message' => ['#markup' => $revision->revision_log->value, '#allowed_tags' => Xss::getHtmlTagList()],
Chris@0:             ],
Chris@0:           ],
Chris@0:         ];
Chris@0:         // @todo Simplify once https://www.drupal.org/node/2334319 lands.
Chris@0:         $this->renderer->addCacheableDependency($column['data'], $username);
Chris@0:         $row[] = $column;
Chris@0: 
Chris@14:         if ($is_current_revision) {
Chris@0:           $row[] = [
Chris@0:             'data' => [
Chris@0:               '#prefix' => '<em>',
Chris@0:               '#markup' => $this->t('Current revision'),
Chris@0:               '#suffix' => '</em>',
Chris@0:             ],
Chris@0:           ];
Chris@0: 
Chris@0:           $rows[] = [
Chris@0:             'data' => $row,
Chris@0:             'class' => ['revision-current'],
Chris@0:           ];
Chris@0:         }
Chris@0:         else {
Chris@0:           $links = [];
Chris@0:           if ($revert_permission) {
Chris@0:             $links['revert'] = [
Chris@0:               'title' => $vid < $node->getRevisionId() ? $this->t('Revert') : $this->t('Set as current revision'),
Chris@0:               'url' => $has_translations ?
Chris@0:                 Url::fromRoute('node.revision_revert_translation_confirm', ['node' => $node->id(), 'node_revision' => $vid, 'langcode' => $langcode]) :
Chris@0:                 Url::fromRoute('node.revision_revert_confirm', ['node' => $node->id(), 'node_revision' => $vid]),
Chris@0:             ];
Chris@0:           }
Chris@0: 
Chris@0:           if ($delete_permission) {
Chris@0:             $links['delete'] = [
Chris@0:               'title' => $this->t('Delete'),
Chris@0:               'url' => Url::fromRoute('node.revision_delete_confirm', ['node' => $node->id(), 'node_revision' => $vid]),
Chris@0:             ];
Chris@0:           }
Chris@0: 
Chris@0:           $row[] = [
Chris@0:             'data' => [
Chris@0:               '#type' => 'operations',
Chris@0:               '#links' => $links,
Chris@0:             ],
Chris@0:           ];
Chris@0: 
Chris@0:           $rows[] = $row;
Chris@0:         }
Chris@0:       }
Chris@0:     }
Chris@0: 
Chris@0:     $build['node_revisions_table'] = [
Chris@0:       '#theme' => 'table',
Chris@0:       '#rows' => $rows,
Chris@0:       '#header' => $header,
Chris@0:       '#attached' => [
Chris@0:         'library' => ['node/drupal.node.admin'],
Chris@0:       ],
Chris@0:       '#attributes' => ['class' => 'node-revision-table'],
Chris@0:     ];
Chris@0: 
Chris@0:     $build['pager'] = ['#type' => 'pager'];
Chris@0: 
Chris@0:     return $build;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * The _title_callback for the node.add route.
Chris@0:    *
Chris@0:    * @param \Drupal\node\NodeTypeInterface $node_type
Chris@0:    *   The current node.
Chris@0:    *
Chris@0:    * @return string
Chris@0:    *   The page title.
Chris@0:    */
Chris@0:   public function addPageTitle(NodeTypeInterface $node_type) {
Chris@0:     return $this->t('Create @name', ['@name' => $node_type->label()]);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Gets a list of node revision IDs for a specific node.
Chris@0:    *
Chris@0:    * @param \Drupal\node\NodeInterface $node
Chris@0:    *   The node entity.
Chris@0:    * @param \Drupal\node\NodeStorageInterface $node_storage
Chris@0:    *   The node storage handler.
Chris@0:    *
Chris@0:    * @return int[]
Chris@0:    *   Node revision IDs (in descending order).
Chris@0:    */
Chris@0:   protected function getRevisionIds(NodeInterface $node, NodeStorageInterface $node_storage) {
Chris@0:     $result = $node_storage->getQuery()
Chris@0:       ->allRevisions()
Chris@0:       ->condition($node->getEntityType()->getKey('id'), $node->id())
Chris@0:       ->sort($node->getEntityType()->getKey('revision'), 'DESC')
Chris@0:       ->pager(50)
Chris@0:       ->execute();
Chris@0:     return array_keys($result);
Chris@0:   }
Chris@0: 
Chris@0: }