public function AuthorFormatter::viewInstantArticle in Facebook Instant Articles 3.x

Same name and namespace in other branches

1. 8.2 src/Plugin/Field/FieldFormatter/AuthorFormatter.php \Drupal\fb_instant_articles\Plugin\Field\FieldFormatter\AuthorFormatter::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/AuthorFormatter.php, line 27

Class

AuthorFormatter

Plugin implementation of the 'fbia_author' formatter.

Namespace

Drupal\fb_instant_articles\Plugin\Field\FieldFormatter

Code

public function viewInstantArticle(FieldItemListInterface $items, InstantArticle $article, $region, NormalizerInterface $normalizer, $langcode = NULL) {
  foreach ($items as $delta => $item) {
    $author = Author::create()
      ->withName($item->value);

    // Author's are added to the header of an instant article regardless of
    // the given $region.
    $header = $article
      ->getHeader();
    if (!$header) {
      $header = Header::create();
      $article
        ->withHeader($header);
    }
    $header
      ->addAuthor($author);
  }
}