public function DimensionsDefaultFormatter::viewElements in Physical Fields 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/DimensionsDefaultFormatter.php, line 24

Class

DimensionsDefaultFormatter

Plugin implementation of the 'physical_dimensions_default' formatter.

Namespace

Drupal\physical\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $unit_labels = LengthUnit::getLabels();
  $element = [];

  /** @var \Drupal\physical\Plugin\Field\FieldType\DimensionsItem $item */
  foreach ($items as $delta => $item) {
    $dimensions = [
      $this->numberFormatter
        ->format($item->length),
      $this->numberFormatter
        ->format($item->width),
      $this->numberFormatter
        ->format($item->height),
    ];
    $unit = isset($unit_labels[$item->unit]) ? $unit_labels[$item->unit] : $item->unit;
    $element[$delta] = [
      '#markup' => implode(' × ', $dimensions) . ' ' . $unit,
    ];
  }
  return $element;
}