Builds a renderable array for a field value.

Parameters

\Drupal\Core\Field\FieldItemListInterface $items: The field values to be rendered.

string $langcode: The language that should be used to render the field.

Return value

array A renderable array for $items, as an array of child elements keyed by consecutive numeric indexes starting from 0.

Overrides FormatterInterface::viewElements

File

core/modules/taxonomy/src/Plugin/Field/FieldFormatter/EntityReferenceTaxonomyTermRssFormatter.php, line 27

Class

EntityReferenceTaxonomyTermRssFormatter

Plugin implementation of the 'entity reference taxonomy term RSS' formatter.

Namespace

Drupal\taxonomy\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $parent_entity = $items->getEntity();
  $elements = [];
  foreach ($this->getEntitiesToView($items, $langcode) as $entity) {
    $parent_entity->rss_elements[] = [
      'key' => 'category',
      'value' => $entity->label(),
      'attributes' => [
        'domain' => $entity->id() ? Url::fromRoute('entity.taxonomy_term.canonical', [
          'taxonomy_term' => $entity->id(),
        ], [
          'absolute' => TRUE,
        ])
          ->toString() : '',
      ],
    ];
  }
  return $elements;
}

---