Question

我有一个MongoDB数据库，其中包含有关足球俱乐部的数据。俱乐部有球员和赛季。每个赛季球员都可以拥有不同的球队号码。

考虑以下Mongoose模式：

InjectionConstructor

如何检索完全填充的const clubSchema = new mongoose.Schema({ players: [playerSchema], seasons: [seasonSchema] }); const personSchema = new mongoose.Schema({ firstName: String, lastName: String }); const playerSchema = new mongoose.Schema({ person: personSchema, picture: String }); const seasonSchema = new mongoose.Schema({ name: String, seasonPlayers: [seasonPlayerSchema] }); const seasonPlayerSchema = new mongoose.Schema({ player: { type: mongoose.Schema.Types.ObjectId, ref: "Player" }, squadNumber: Number });文档？所以不要得到这样的东西：

Club

我想要这样的事情：

{
  players: [
    {
      _id: ObjectId("abc123"),
      person: {
        firstName: "John",
        lastName: "Doe"
      }
      picture: "john.jpg"
    }
  ],
  seasons: [
    name: "2015-2016",
    seasonPlayers: [
      {
        player: ObjectId("abc123"),
        squadNumber: 10
      }
    ]
  ]
}

Answer 1

您可以在Mongoose的population路径中使用点表示法来指定要填充的子文档层次结构中的路径：

Club.findOne().populate('seasons.seasonPlayers.player').exec(function(err, club) {...});

如何使用来自另一个子文档的数据填充Mongoose子文档

1 个答案: