public static IQueryable<PetShop.Core.Data.Order> ByShipZip(this IQueryable<PetShop.Core.Data.Order> queryable, string shipZip, params string[] additionalValues)
        {
            var shipZipList = new List<string> { shipZip };

            if (additionalValues != null)
                shipZipList.AddRange(additionalValues);

            if (shipZipList.Count == 1)
                return queryable.ByShipZip(shipZipList[0]);

            return queryable.ByShipZip(shipZipList);
        }
        public static IQueryable<Petshop.Data.Entities.Order> ByShipZip(this IQueryable<Petshop.Data.Entities.Order> queryable, System.String shipZip, params System.String[] additionalValues)
        {
            var shipZipList = new List<System.String> { shipZip };

            if (additionalValues != null)
                shipZipList.AddRange(additionalValues);

            if (shipZipList.Count == 1)
                return queryable.ByShipZip(shipZipList[0]);

            return queryable.ByShipZip(shipZipList);
        }