public function BundlePriceCalculatedFormatter::viewElements in Commerce Product Bundle 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 PriceCalculatedFormatter::viewElements

File

src/Plugin/Field/FieldFormatter/BundlePriceCalculatedFormatter.php, line 28

Class

BundlePriceCalculatedFormatter

Plugin implementation of the 'commerce_price_calculated' formatter.

Namespace

Drupal\commerce_product_bundle\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $elements = [];

  /** @var \Drupal\commerce\PurchasableEntityInterface $purchasable_entity */
  $purchasable_entity = $items
    ->getEntity();

  // We only handle product bundles. Let the commerce core calculated price
  // formatter handle other purchasable entities.
  if (!$purchasable_entity
    ->getEntityType()
    ->entityClassImplements(BundleInterface::class)) {
    return parent::viewElements($items, $langcode);
  }
  $context = new Context($this->currentUser, $this->currentStore
    ->getStore(), NULL, [
    'field_name' => $items
      ->getName(),
  ]);

  // We need to run the logic, even if we have no valid price from the bundle
  // entity itself. The bundle price resolver will calculate a price from the
  // product bundle items.
  for ($delta = $items
    ->isEmpty() ? 0 : 1; $delta <= count($items); $delta = $delta + 1) {
    $resolved_price = $this->chainPriceResolver
      ->resolve($purchasable_entity, 1, $context);
    if ($resolved_price) {
      $number = $resolved_price
        ->getNumber();
      $currency_code = $resolved_price
        ->getCurrencyCode();
      $options = $this
        ->getFormattingOptions();
      $elements[$delta] = [
        '#markup' => $this->currencyFormatter
          ->format($number, $currency_code, $options),
        '#cache' => [
          'tags' => $purchasable_entity
            ->getCacheTags(),
          'contexts' => Cache::mergeContexts($purchasable_entity
            ->getCacheContexts(), [
            'languages:' . LanguageInterface::TYPE_INTERFACE,
            'country',
          ]),
        ],
      ];
    }
  }
  return $elements;
}