public function PhotosAlbumFormatter::viewElements in Album Photos 6.0.x

Same name and namespace in other branches

1. 8.5 src/Plugin/Field/FieldFormatter/PhotosAlbumFormatter.php \Drupal\photos\Plugin\Field\FieldFormatter\PhotosAlbumFormatter::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/PhotosAlbumFormatter.php, line 150

Class

PhotosAlbumFormatter

Plugin implementation of the 'photos_album' formatter.

Namespace

Drupal\photos\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $elements = [];
  $photosDisplayType = $this
    ->getSetting('photos_display_type');
  foreach ($this
    ->getEntitiesToView($items, $langcode) as $delta => $entity) {

    // @todo fall back on label display if not a photo album.
    $label = $entity
      ->label();

    // If the link is to be displayed and the entity has a uri, display a
    // link.
    switch ($photosDisplayType) {
      case 'none':

        // Render nothing.
        break;
      case 'cover':
        $albumView = [];
        if (isset($entity->album) && isset($entity->album['cover_id'])) {
          $coverId = $entity->album['cover_id'];
          $photos_album = new PhotosAlbum($entity
            ->id());
          $albumView = $photos_album
            ->getCover($coverId);
        }

        // @todo fallback on image?
        $elements[$delta] = $albumView;
        break;
    }
    if (!$entity
      ->isNew()) {
      if (!empty($items[$delta]->_attributes)) {
        $elements[$delta]['#options'] += [
          'attributes' => [],
        ];
        $elements[$delta]['#options']['attributes'] += $items[$delta]->_attributes;

        // Unset field item attributes since they have been included in the
        // formatter output and shouldn't be rendered in the field template.
        unset($items[$delta]->_attributes);
      }
    }
    else {
      $elements[$delta] = [
        '#plain_text' => $label,
      ];
    }
    $elements[$delta]['#cache']['tags'] = $entity
      ->getCacheTags();
    $elements[$delta]['#cache']['tags'][] = 'photos:album:' . $entity
      ->id();
  }
  return $elements;
}