/// <summary>
/// This wipes all the existing orders and creates a new set of orders
/// </summary>
/// <param name="context"></param>
/// <param name="books"></param>
public static void ResetOrders(this EfCoreContext context, List <Book> books = null)
{
context.RemoveRange(context.Orders.ToList()); //remove the existing orders (the lineitems will go too)
context.AddDummyOrders(books); //add a dummy set of orders
context.SaveChanges();
}