public function FieldCollectionEditableFormatter::viewElements in Field collection 8.3

Same name and namespace in other branches

1. 8 src/Plugin/Field/FieldFormatter/FieldCollectionEditableFormatter.php \Drupal\field_collection\Plugin\Field\FieldFormatter\FieldCollectionEditableFormatter::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 FormatterInterface::viewElements

File

src/Plugin/Field/FieldFormatter/FieldCollectionEditableFormatter.php, line 22

Class

FieldCollectionEditableFormatter

Plugin implementation of the 'field_collection_editable' formatter.

Namespace

Drupal\field_collection\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $count = 0;

  // TODO: Is there a better way to get an accurate count of the
  // items from the FileItemList that doesn't count blank items?
  $render_items = [];
  foreach ($items as $item) {
    if ($item->target_id !== NULL) {
      $count++;
      $to_render = \Drupal::entityTypeManager()
        ->getViewBuilder('field_collection_item')
        ->view($item
        ->getFieldCollectionItem());
      $to_render['#suffix'] = $this
        ->getEditLinks($item);
      $builder = $to_render['#pre_render'][0][0];
      unset($to_render['#pre_render']);
      $render_items[] = $builder
        ->build($to_render);
    }
  }
  $cardinality = $this->fieldDefinition
    ->getFieldStorageDefinition()
    ->getCardinality();
  if ($cardinality == -1 || $count < $cardinality) {
    $render_items['#suffix'] = '<ul class="action-links action-links-field-collection-add"><li>';
    $render_items['#suffix'] .= $this
      ->getAddLink($items
      ->getEntity());
    $render_items['#suffix'] .= '</li></ul>';
  }
  return $render_items;
}