public void UpdateWine()
        {
            Wine wine = new Wine();
            wine.id = 4;
            wine.name = "unit test wine";
            wine.grapes = "23";
            wine.country = "Bolivia";
            wine.region = "Bermejo";
            wine.year = "2013";
            wine.description = "No description";
            wine.picture = "wine2.png";

            WineDa da = new WineDa();
            int rowsAffected = da.Update(wine);
            Assert.IsTrue(rowsAffected >= 0);
        }
        public JsonResult Update(long wineId, Wine wine)
        {
            Response.AppendHeader("Access-Control-Allow-Origin", "*");
            WineDa da = new WineDa();
            wine.id = wineId;
            int rows = da.Update(wine);

            int status;
            string message;
            if (rows > 0) {
                status = 200;
                message = "updated";
            } else {
                status = 400;
                message = "error";
            }

            return Json(new { Status = status, Message = message });
        }