/**
* Tests ability to expose line item fields on the add to cart form.
*/
public function testExposedLineItemFields()
{
/** @var \Drupal\Core\Entity\Entity\EntityFormDisplay $line_item_form_display */
$line_item_form_display = EntityFormDisplay::load('commerce_line_item.product_variation.add_to_cart');
$line_item_form_display->setComponent('quantity', ['type' => 'number']);
$line_item_form_display->save();
// Get the existing product page and submit Add to cart form.
$this->postAddToCart($this->variation->getProduct(), ['quantity[0][value]' => 3]);
// Check if the quantity was increased for the existing line item.
$this->cart = Order::load($this->cart->id());
$line_items = $this->cart->getLineItems();
/** @var \Drupal\commerce_order\Entity\LineItemInterface $line_item */
$line_item = $line_items[0];
$this->assertEqual($line_item->getTitle(), $this->variation->getLineItemTitle());
$this->assertTrue($line_item->getQuantity() == 3, t('The product @product has been added to cart.', ['@product' => $line_item->getTitle()]));
}
/**
* {@inheritdoc}
*/
public function addLineItem(OrderInterface $cart, LineItemInterface $line_item, $combine = TRUE, $save_cart = TRUE)
{
$purchased_entity = $line_item->getPurchasedEntity();
$quantity = $line_item->getQuantity();
$matching_line_item = NULL;
if ($combine) {
$matching_line_item = $this->lineItemMatcher->match($line_item, $cart->getLineItems());
}
$needs_cart_save = FALSE;
if ($matching_line_item) {
$new_quantity = $matching_line_item->getQuantity() + $quantity;
$matching_line_item->setQuantity($new_quantity);
$matching_line_item->save();
} else {
$line_item->save();
$cart->addLineItem($line_item);
$needs_cart_save = TRUE;
}
$event = new CartEntityAddEvent($cart, $purchased_entity, $quantity, $line_item);
$this->eventDispatcher->dispatch(CartEvents::CART_ENTITY_ADD, $event);
if ($needs_cart_save && $save_cart) {
$cart->save();
}
return $line_item;
}
