/// <summary>
/// Adds a <code>Product</code> to a <code>User</code>'s cart.
/// </summary>
/// <param name="product">The <code>Product</code> you want to add</param>
/// <param name="user">The matching <code>User</code></param>
/// <param name="amount">The amount that should be added</param>
public void AddToCart(Product product, User user, int amount)
{
persistenceCode.AddToCart(product, user, amount);
}
