/**
* @param $product Product or product_srl
* @param int $quantity
* @param bool $relativeQuantity
*
* @return mixed
* @throws Exception
*/
public function addProduct($product, $quantity = 1, $relativeQuantity = true)
{
if (!$this->isPersisted()) {
throw new ShopException('Cart is not persisted');
}
if ($product instanceof SimpleProduct) {
if (!($product_srl = $product->product_srl)) {
throw new ShopException('Product is not persisted');
}
} elseif (is_numeric($product)) {
$product = new SimpleProduct($product);
} else {
throw new ShopException('Wrong $product input for addProduct to cart');
}
if (!$this->productStillAvailable($product)) {
throw new ShopException('Product is no longer available, cannot add it to cart.');
}
if ($cp = $this->getCartProduct($product)) {
$cartProductQuantity = $relativeQuantity ? $cp->quantity + $quantity : $quantity;
$return = $this->setProductQuantity($product->product_srl, $cartProductQuantity, array('title' => $product->title));
} else {
$cartProductQuantity = $quantity;
$return = $this->repo->insertCartProduct($this->cart_srl, $product->product_srl, $cartProductQuantity, array('title' => $product->title, 'price' => $product->getPrice()));
}
$this->setExtra('price', $this->getPrice(true));
$this->items = $this->count(true, true);
$this->save();
return $return;
}
