public ActionResult Create(CouponTypeModel coupon)
        {
            try
            {
                CouponType tempCoupon = coupon.ToCouponType();
                m_serviceLayer.AddCouponToDB(tempCoupon);

                log.InfoFormat("[CouponController.Create] coupon.Description={0}, coupon.", coupon.ToString());
                return RedirectToAction("Index");
            }
            catch(Exception e)
            {
                log.ErrorFormat("[CouponController.Create] Exception={0}.", e.ToString());
                return View();
            }
        }
 public void UpdateCoupon(CouponTypeModel couponModel)
 {
     log.DebugFormat("[UpdateCoupon(couponModel)] couponModel={0}.", couponModel.ToString());
     CouponType coupon = couponModel.ToCouponType();
     UpdateCoupon(coupon);
 }