public CommodityPrice(Commodity commodity, PriceType type, Guid guid) : base(guid)
{
this.Commodity = commodity;
this.Type = type;
this.PriceHistory = new RelationshipCollection <PricePoint>(this);
}
public CommodityPrice(Commodity commodity, PriceType type) : this(commodity, type, Guid.NewGuid())
{
}
