public function FileExportFormatter::viewElements in REST Views 8

Same name and namespace in other branches

1. 2.0.x src/Plugin/Field/FieldFormatter/FileExportFormatter.php \Drupal\rest_views\Plugin\Field\FieldFormatter\FileExportFormatter::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/FileExportFormatter.php, line 25

Class

FileExportFormatter

Plugin implementation of the 'file_export' formatter.

Namespace

Drupal\rest_views\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $description = $this->fieldDefinition
    ->getSetting('description_field');
  $elements = [];

  /** @var \Drupal\Core\Field\EntityReferenceFieldItemListInterface $items */
  foreach ($this
    ->getEntitiesToView($items, $langcode) as $delta => $entity) {

    /** @var \Drupal\file\FileInterface $entity */
    $data = [
      'url' => file_create_url($entity
        ->getFileUri()),
    ];
    if ($description && !empty($entity->_referringItem)) {
      $data['description'] = $entity->_referringItem->description;
    }
    $elements[$delta] = [
      '#type' => 'data',
      '#data' => SerializedData::create($data),
    ];
  }
  return $elements;
}