public Item ToDomain(Item entity)
{
entity = entity ?? new Item();
entity.Id = Id.HasValue() ? Id.To <Guid>() : default(Guid);
entity.Code = Code;
entity.Name = Name;
entity.Price = Price;
entity.QuantityInStock = QuantityInStock;
entity.Description = Description;
entity.AdditionalInfo = AdditionalInfo.IsNotNull() ? AdditionalInfo.ToDomain() : null;
entity.Active = Active.GetValueOrDefault();
return(entity);
}