小编Bre*_*agy的帖子

我们有一个包含流媒体视频的网站,我们希望在上周,月份和年份(滚动窗口)显示三个最受关注视频的报告.

每次观看视频时,我们都会在ravendb中存储一个文档:

public class ViewedContent
{
    public string Id { get; set; }
    public int ProductId { get; set; }
    public DateTime DateViewed { get; set; }
}

我们无法确定如何定义最能支持生成这三个报告的索引/ mapreduces.

我们尝试了以下map/reduce.

public class ViewedContentResult
{
    public int ProductId { get; set; }
    public DateTime DateViewed { get; set; }
    public int Count { get; set; }
}

public class ViewedContentIndex :
        AbstractIndexCreationTask<ViewedContent, ViewedContentResult>
{
    public ViewedContentIndex()
    {
        Map = docs => from doc in docs
                      select new
                                 {
                                     doc.ProductId,
                                     DateViewed …