public function AuthorReferenceFormatter::viewInstantArticle in Facebook Instant Articles 8.2
Same name and namespace in other branches
- 3.x src/Plugin/Field/FieldFormatter/AuthorReferenceFormatter.php \Drupal\fb_instant_articles\Plugin\Field\FieldFormatter\AuthorReferenceFormatter::viewInstantArticle()
Modifies the given instant article with the contents of this field.
Parameters
\Drupal\Core\Field\FieldItemListInterface $items: The field values to be rendered.
\Facebook\InstantArticles\Elements\InstantArticle $article: Instant article object to modify, rendering the contents of this field into it.
string $region: The Instant Article region name that the contents of this field should be rendered into.
\Symfony\Component\Serializer\Normalizer\NormalizerInterface $normalizer: Normalizer in case the formatter needs to recursively normalize, eg. in the case of a entity reference field.
string $langcode: (optional) The language that should be used to render the field. Defaults to the current content language.
Overrides InstantArticleFormatterInterface::viewInstantArticle
File
- src/
Plugin/ Field/ FieldFormatter/ AuthorReferenceFormatter.php, line 71
Class
- AuthorReferenceFormatter
- Plugin implementation of the 'fbia_author_reference' formatter.
Namespace
Drupal\fb_instant_articles\Plugin\Field\FieldFormatterCode
public function viewInstantArticle(FieldItemListInterface $items, InstantArticle $article, $region, NormalizerInterface $normalizer, $langcode = NULL) {
// Need to call parent::prepareView() to populate the entities since it's
// not otherwise getting called.
$this
->prepareView([
$items
->getEntity()
->id() => $items,
]);
/* @var \Drupal\user\UserInterface $entity */
foreach ($this
->getEntitiesToView($items, $langcode) as $delta => $entity) {
$author = Author::create()
->withName($entity
->getDisplayName());
if ($this
->getSetting('link')) {
$author
->withURL($entity
->toUrl('canonical', [
'absolute' => TRUE,
])
->toString());
}
// Author's are added to the header of an instant article regardless of
// the given $region.
$header = $article
->getHeader();
if (!$header) {
$header = Header::create();
}
$header
->addAuthor($author);
}
}