public StoredProduct(Shelf shelf, Product product)
{
Shelf = shelf;
Shelf.StoredProducts.Add(this);
Product = product;
Product.StoredProducts.Add(this);
}
public virtual void RemoveProduct(Shelf shelf, int amount)
{
if (amount > 1)
{
throw new ArgumentOutOfRangeException(nameof(amount), "amount of products to remove needs to be positve");
}
var storedProduct = StoredProducts.FirstOrDefault(sp => sp.Shelf == shelf) ?? new StoredProduct(shelf, this);
storedProduct.RemoveProducts(amount);
}
