MVC广告跟踪

Question

C＃

   public ActionResult GetBanners()
        {
        List<BannerImage> bannerImages = new List<BannerImage>();
        bannerImages.add(new BannerImage(){Id = 1, TargetUrl = "http://www.google.com", ImageUrl= 'Image1'});
        bannerImages.add(new BannerImage(){Id = 2, TargetUrl = "http://www.yahoo.com", ImageUrl= 'Image2'});
        bannerImages.add(new BannerImage(){Id = 3, TargetUrl = "http://www.msn.com", ImageUrl= 'Image3'});
return view(bannerImages);
        }

查看（.cshtml）

@model IEnumerable<MyApp.Areas.Admin.ViewModel.BannerImage>

@{
    ViewBag.Title = "Index";
}

<h2>Index</h2>

<p>
    @Html.ActionLink("Create New", "Create")
</p>
<table class="table table-bordered table-striped" >    

@foreach (var item in Model) {
    <tr>
        <td>
            <a onclick="ClickMethod()" href = "@item.TargetUrl"> <img src = "@item.ImageUrl" /> </a>
        </td>       
    </tr>
}

</table>

我正在我的应用程序中显示外部网站的横幅广告。在这里，我面临如何跟踪的挑战：
1.视图
2.展示次数（意味着广告在屏幕范围内对用户可见）
3.今天的印象
4.点击今天

我的方法

 public ActionResult GetBanners()
    {

      // before showing the ads, I am inserting the ads for view in Userads database table
        Updatebannerviews();

    }

   public ActionResult ClickMethod()
    {

      // I am inserting the ads for clicks in Userads database table
        UpdateBannerClicks();
        return json("Success", JsonBehavior.AllowGet);

    }

 public ActionResult Impressions()
    {

      // I am inserting the ads for impressions, in Userads database table
        UpdateBannerImpressions();
        return json("Success", JsonBehavior.AllowGet);

    }

这是正确的方法吗？或者，还有更好的方法？请指教。预先感谢。