public function TermLevelFormatter::viewElements in Term Level Field 8

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 EntityReferenceLabelFormatter::viewElements

File

src/Plugin/Field/FieldFormatter/TermLevelFormatter.php, line 25

Class

TermLevelFormatter

Plugin for Term level formatter.

Namespace

Drupal\term_level\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $elements = parent::viewElements($items, $langcode);
  $values = $items
    ->getValue();
  $field_settings = $this
    ->getFieldSettings();
  $levels = TermLevelItem::extractLevels($field_settings['levels']);
  foreach ($elements as $delta => $entity) {
    $level = $values[$delta]['level'];
    $elements[$delta]['level'] = [
      '#markup' => ' : ' . $levels[$level],
    ];
  }
  return $elements;
}