RavenDB：如何创建 MapReduce 索引以返回过滤的子对象列表

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我的文档结构如下：

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

如何建立一个索引，为我提供给定游戏中玩家的所有事件？

这是我走了多远，但 RavenDB 说它无法理解我的查询？

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，如果您真的想要以这种方式建模，则无需创建索引，因为您可以加载整个游戏文档并使用标准 linq-to 完成其余工作-对象聚合。

无论如何，听起来好像您希望将 Game、Player 和 Event 作为独立的文档，因为它们是您的聚合根，或者换句话说 - 它们本身就有意义。