/// <summary>
/// 验证优惠劵编号
/// </summary>
/// <returns></returns>
public ActionResult VerifyCouponSN()
{
string couponSN = WebHelper.GetQueryString("couponSN");//优惠劵编号
if (couponSN.Length == 0)
{
return(AjaxResult("emptycouponsn", "请输入优惠劵编号"));
}
else if (couponSN.Length != 16)
{
return(AjaxResult("errorcouponsn", "优惠劵编号不正确"));
}
CouponInfo couponInfo = Coupons.GetCouponByCouponSN(couponSN);
if (couponInfo == null)//不存在
{
return(AjaxResult("noexist", "优惠劵不存在"));
}
else if (couponInfo.Oid > 0)//已使用
{
return(AjaxResult("used", "优惠劵已使用"));
}
else if (couponInfo.Uid > 0)//已激活
{
return(AjaxResult("activated", "优惠劵已激活"));
}
else//未激活
{
return(AjaxResult("nonactivated", "优惠劵未激活"));
}
}