public function ProductLazyBuilders::addToCartForm in Commerce Core 8.2

Builds the add to cart form.

Parameters

string $product_id: The product ID.

string $view_mode: The view mode used to render the product.

bool $combine: TRUE to combine order items containing the same product variation.

string $langcode: The langcode for the language that should be used in form.

Return value

array A renderable array containing the cart form.

File

modules/product/src/ProductLazyBuilders.php, line 68

Class

ProductLazyBuilders

Provides #lazy_builder callbacks.

Namespace

Drupal\commerce_product

Code

public function addToCartForm($product_id, $view_mode, $combine, $langcode) {

  /** @var \Drupal\commerce_order\OrderItemStorageInterface $order_item_storage */
  $order_item_storage = $this->entityTypeManager
    ->getStorage('commerce_order_item');

  /** @var \Drupal\commerce_product\Entity\ProductInterface $product */
  $product = $this->entityTypeManager
    ->getStorage('commerce_product')
    ->load($product_id);

  // Load Product for current language.
  $product = $this->entityRepository
    ->getTranslationFromContext($product, $langcode);
  $default_variation = $product
    ->getDefaultVariation();
  if (!$default_variation) {
    return [];
  }
  $order_item = $order_item_storage
    ->createFromPurchasableEntity($default_variation);

  /** @var \Drupal\commerce_cart\Form\AddToCartFormInterface $form_object */
  $form_object = $this->entityTypeManager
    ->getFormObject('commerce_order_item', 'add_to_cart');
  $form_object
    ->setEntity($order_item);

  // The default form ID is based on the variation ID, but in this case the
  // product ID is more reliable (the default variation might change between
  // requests due to an availability change, for example).
  $form_object
    ->setFormId($form_object
    ->getBaseFormId() . '_commerce_product_' . $product_id);
  $form_state = (new FormState())
    ->setFormState([
    'product' => $product,
    'view_mode' => $view_mode,
    'settings' => [
      'combine' => $combine,
    ],
  ]);
  return $this->formBuilder
    ->buildForm($form_object, $form_state);
}