public static string UpdatePrice(FastFoodDbContext context, string itemName, decimal newPrice)
{
var item = context.Items.FirstOrDefault(i => i.Name == itemName);
if (item == null)
{
return($"Item {itemName} not found!");
}
var oldPrice = item.Price;
context.Attach(item);
item.Price = newPrice;
context.SaveChanges();
return($"{item.Name} Price updated from ${oldPrice:F2} to ${newPrice:F2}");
}