public function IsbnFormattedFormatter::viewElements in ISBN 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 FormatterInterface::viewElements

File

src/Plugin/Field/FieldFormatter/IsbnFormattedFormatter.php, line 35

Class

IsbnFormattedFormatter

Plugin implementation of the 'isbn_formatted_formatter' formatter.

Namespace

Drupal\isbn\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $element = [];
  foreach ($items as $delta => $item) {

    // Render each element as markup.
    $element[$delta] = [
      '#type' => 'markup',
      '#markup' => $this
        ->format($item->value),
    ];
  }
  return $element;
}