public function FieldCollectionItemsFormatter::viewElements in Field collection 8.3

Same name and namespace in other branches

1. 8 src/Plugin/Field/FieldFormatter/FieldCollectionItemsFormatter.php \Drupal\field_collection\Plugin\Field\FieldFormatter\FieldCollectionItemsFormatter::viewElements()

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 EntityReferenceEntityFormatter::viewElements

File

src/Plugin/Field/FieldFormatter/FieldCollectionItemsFormatter.php, line 24

Class

FieldCollectionItemsFormatter

Plugin implementation of the 'field_collection_items' formatter.

Namespace

Drupal\field_collection\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $render_items = parent::viewElements($items, $langcode);

  // Make subfields accessible via twig.
  // For example, in field--field-collection.html.twig:
  // {{ items[0].content.field_aaa }}
  foreach ($render_items as $delta => $item) {
    $builder = $item['#pre_render'][0][0];
    unset($item['#pre_render']);
    $render_items[$delta] = $builder
      ->build($item);
  }
  return $render_items;
}