public List <ProductDetails> GetOrderLineProductsByOrderId(long orderId)
{
Order order = OrderDao.Find(orderId);
List <ProductDetails> productsDetails = new List <ProductDetails>();
for (int i = 0; i < order.OrderLines.Count; i++)
{
Product p = ProductDao.Find(order.OrderLines.ElementAt(i).productId);
string categoryName = CategoryDao.Find(p.categoryId).name;
ProductDetails productDetails = new ProductDetails(p.name, p.categoryId, categoryName, p.registerDate, order.OrderLines.ElementAt(i).unitPrize, p.productId, order.OrderLines.ElementAt(i).numberOfUnits, order.OrderLines.ElementAt(i).forGift);
productsDetails.Add(productDetails);
}
return(productsDetails);
}