/**
* Adds item to the cart.
* If item is already present - increases it's quantity.
*
* @param Item $item Item to add to cart.
*
* @throws NotEnoughStockException When user requests more than we have.
* @throws Exception On any error.
*/
public function addItem(Item $item)
{
$product = $item->getProduct();
$quantity = $item->getQuantity();
if ($product === null || $product->getId() === 0) {
throw new Exception(__('Product not found', 'jigoshop'));
}
if ($quantity <= 0) {
throw new Exception(__('Quantity has to be positive number', 'jigoshop'));
}
if ($this->hasItem($item->getKey())) {
/** @var Item $itemInCart */
$itemInCart = $this->getItem($item->getKey());
if ($product instanceof Product\Purchasable && !$this->checkStock($product, $itemInCart->getQuantity() + $item->getQuantity())) {
throw new NotEnoughStockException($product->getStock()->getStock());
}
$itemInCart->setQuantity($itemInCart->getQuantity() + $item->getQuantity());
return;
}
if ($product instanceof Product\Purchasable && !$this->checkStock($product, $quantity)) {
throw new NotEnoughStockException($product->getStock()->getStock());
}
$isValid = apply_filters('jigoshop\\cart\\validate_new_item', true, $product->getId(), $item->getQuantity());
if (!$isValid) {
throw new Exception(__('Could not add to cart.', 'jigoshop'));
}
$item = apply_filters('jigoshop\\cart\\new_item', $item);
parent::addItem($item);
}