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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\node\Plugin\views\row\Rss. | |
| */ | |
| namespace Drupal\node\Plugin\views\row; | |
| use Drupal\Core\Entity\EntityManagerInterface; | |
| use Drupal\views\Plugin\views\row\RssPluginBase; | |
| /** | |
| * Plugin which performs a node_view on the resulting object | |
| * and formats it as an RSS item. | |
| * | |
| * @ViewsRow( | |
| * id = "node_rss", | |
| * title = @Translation("Content"), | |
| * help = @Translation("Display the content with standard node view."), | |
| * theme = "views_view_row_rss", | |
| * register_theme = FALSE, | |
| * base = {"node_field_data"}, | |
| * display_types = {"feed"} | |
| * ) | |
| */ | |
| class Rss extends RssPluginBase { | |
| // Basic properties that let the row style follow relationships. | |
| var $base_table = 'node_field_data'; | |
| var $base_field = 'nid'; | |
| // Stores the nodes loaded with preRender. | |
| var $nodes = array(); | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| protected $entityTypeId = 'node'; | |
| /** | |
| * The node storage | |
| * | |
| * @var \Drupal\node\NodeStorageInterface | |
| */ | |
| protected $nodeStorage; | |
| /** | |
| * Constructs the Rss object. | |
| * | |
| * @param array $configuration | |
| * A configuration array containing information about the plugin instance. | |
| * @param string $plugin_id | |
| * The plugin_id for the plugin instance. | |
| * @param mixed $plugin_definition | |
| * The plugin implementation definition. | |
| * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager | |
| * The entity manager. | |
| */ | |
| public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityManagerInterface $entity_manager) { | |
| parent::__construct($configuration, $plugin_id, $plugin_definition, $entity_manager); | |
| $this->nodeStorage = $entity_manager->getStorage('node'); | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function buildOptionsForm_summary_options() { | |
| $options = parent::buildOptionsForm_summary_options(); | |
| $options['title'] = $this->t('Title only'); | |
| $options['default'] = $this->t('Use site default RSS settings'); | |
| return $options; | |
| } | |
| public function summaryTitle() { | |
| $options = $this->buildOptionsForm_summary_options(); | |
| return $options[$this->options['view_mode']]; | |
| } | |
| public function preRender($values) { | |
| $nids = array(); | |
| foreach ($values as $row) { | |
| $nids[] = $row->{$this->field_alias}; | |
| } | |
| if (!empty($nids)) { | |
| $this->nodes = $this->nodeStorage->loadMultiple($nids); | |
| } | |
| } | |
| public function render($row) { | |
| global $base_url; | |
| $nid = $row->{$this->field_alias}; | |
| if (!is_numeric($nid)) { | |
| return; | |
| } | |
| $display_mode = $this->options['view_mode']; | |
| if ($display_mode == 'default') { | |
| $display_mode = \Drupal::config('system.rss')->get('items.view_mode'); | |
| } | |
| // Load the specified node: | |
| /** @var \Drupal\node\NodeInterface $node */ | |
| $node = $this->nodes[$nid]; | |
| if (empty($node)) { | |
| return; | |
| } | |
| $node->link = $node->url('canonical', array('absolute' => TRUE)); | |
| $node->rss_namespaces = array(); | |
| $node->rss_elements = array( | |
| array( | |
| 'key' => 'pubDate', | |
| 'value' => gmdate('r', $node->getCreatedTime()), | |
| ), | |
| array( | |
| 'key' => 'dc:creator', | |
| 'value' => $node->getOwner()->getDisplayName(), | |
| ), | |
| array( | |
| 'key' => 'guid', | |
| 'value' => $node->id() . ' at ' . $base_url, | |
| 'attributes' => array('isPermaLink' => 'false'), | |
| ), | |
| ); | |
| // The node gets built and modules add to or modify $node->rss_elements | |
| // and $node->rss_namespaces. | |
| $build_mode = $display_mode; | |
| $build = node_view($node, $build_mode); | |
| unset($build['#theme']); | |
| if (!empty($node->rss_namespaces)) { | |
| $this->view->style_plugin->namespaces = array_merge($this->view->style_plugin->namespaces, $node->rss_namespaces); | |
| } | |
| elseif (function_exists('rdf_get_namespaces')) { | |
| // Merge RDF namespaces in the XML namespaces in case they are used | |
| // further in the RSS content. | |
| $xml_rdf_namespaces = array(); | |
| foreach (rdf_get_namespaces() as $prefix => $uri) { | |
| $xml_rdf_namespaces['xmlns:' . $prefix] = $uri; | |
| } | |
| $this->view->style_plugin->namespaces += $xml_rdf_namespaces; | |
| } | |
| $item = new \stdClass(); | |
| if ($display_mode != 'title') { | |
| // We render node contents. | |
| $item->description = $build; | |
| } | |
| $item->title = $node->label(); | |
| $item->link = $node->link; | |
| // Provide a reference so that the render call in | |
| // template_preprocess_views_view_row_rss() can still access it. | |
| $item->elements = &$node->rss_elements; | |
| $item->nid = $node->id(); | |
| $build = array( | |
| '#theme' => $this->themeFunctions(), | |
| '#view' => $this->view, | |
| '#options' => $this->options, | |
| '#row' => $item, | |
| ); | |
| return $build; | |
| } | |
| } |