public function CreditsFormatter::viewInstantArticle in Facebook Instant Articles 8.2

Same name and namespace in other branches

1. 3.x src/Plugin/Field/FieldFormatter/CreditsFormatter.php \Drupal\fb_instant_articles\Plugin\Field\FieldFormatter\CreditsFormatter::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/CreditsFormatter.php, line 28

Class

CreditsFormatter

Plugin implementation of the 'fbia_credits' formatter.

Namespace

Drupal\fb_instant_articles\Plugin\Field\FieldFormatter

Code

public function viewInstantArticle(FieldItemListInterface $items, InstantArticle $article, $region, NormalizerInterface $normalizer, $langcode = NULL) {
  $credits = [];
  foreach ($items as $delta => $item) {
    $credits[] = Paragraph::create()
      ->appendText($item->value);
  }
  if (!empty($credits)) {

    // Copyright can only go in the footer, put it there and ignore the given
    // $region.
    $footer = $article
      ->getFooter();
    if (!$footer) {
      $footer = Footer::create();
      $article
        ->withFooter($footer);
    }
    $footer
      ->withCredits($credits);
  }
}