/**
* @param Request $request
* @return CartItemInterface
*/
public function resolve(Request $request)
{
if (!($id = $request->get('id'))) {
throw new ItemResolvingException('Error while trying to add item to cart.');
}
// Create cart item
$item = $this->cartItemFactory->createNew();
$channel = $this->channelContext->getChannel();
if (!($product = $this->productRepository->findOneByIdAndChannel($id, $channel))) {
throw new ItemResolvingException('Requested product was not found.');
}
// We use forms to easily set the quantity and pick variant,
// the same way Sylius does it while resolving products when adding to cart
$form = $this->formFactory->create('sylius_cart_item', $item, array('product' => $product));
$form->submit($request);
// Get appropriate variant
$variant = $item->getVariant() ? $item->getVariant() : $product->getMasterVariant();
return $variant;
}