public function add(Product $newproduct)
{
$productupdated = false;
//check if product is already in cart if yes sum-up, if not add new product to cart
if ($this->products) {
foreach ($this->products as $product) {
if ($product->__get('number') == $newproduct->__get('number') && $product->__get('selectedoption') == $newproduct->__get('selectedoption')) {
$this->update($product->__get('uid'), $product->__get('amount') + $newproduct->__get('amount'));
$productupdated = true;
break;
}
}
}
if (!$productupdated) {
$this->products[] = $newproduct;
}
$this->updateBalance();
}
