RavenDB：如何创建MapReduce的索引返回儿童的筛选对象列表

Question

继this question

我有以下的文档结构：

Game 
- Id 
- Teams 
    - Team 1 
    - list of players 
    - Team 2 
    - list of players 
- Events 
    - Event 1 
    - type: Pass 
    - teamId 
    - PlayerId 
    - Event 2 
    - type: Goal 
    - teamId 
    - PlayerId 

如何建立，让我所有的事件的索引对于给定游戏的玩家？

这是我得到多远，RavenDB说它不能理解我的查询？

public class Games_PlayerEvents : AbstractIndexCreationTask<Game, Games_PlayerEvents.ReduceResult> 
    { 
     public class ReduceResult 
     { 
      public string PlayerId { get; set; } 
      public IEnumerable<GameEvent> Events { get; set; } 
     } 


     public Games_PlayerEvents() 
     { 
      Map = games => from game in games 
          select new 
          { 
           PlayerId = "", 
           Events = game.Events 
          }; 

      Reduce = results => from result in results 
           from @event in result.Events 
           group @event by @event.PlayerId into playerEvents 
           select new 
           { 
            PlayerId = playerEvents.Key, 
            Events = playerEvents.Select(g => g) 
           }; 


     } 
    } 

Answer 1

Marto，如果你真的想给它这样的模型，你不需要创建一个索引，你可以加载整个文档的游戏，并使用标准的LINQ的待办事项休息对象聚合。

无论如何，它听起来好像你想让游戏，玩家和事件作为独立的文档，因为这些是你的聚合根或换句话说 - 它们有自己的意义。