public void AddBottle(string vintage, int price)
{
var @event = new BottleOfWineAdded
{
Id = Id,
Vintage = vintage,
Price = price,
PurchaseDate = DateTime.Today
};
Apply(@event);
Append(@event);
}
public void Apply(BottleOfWineAdded @event)
{
Bottles.Add(new Bottle(@event.PurchaseDate, @event.Price, @event.Vintage));
}