我有两个模型，Pokemon和Attacks。Pokemon模型有一个作为字符串的移动数组，我想用Attack名称作为键填充Attacks集合。

口袋妖怪模型

var mongoose = require("mongoose");
var Schema = mongoose.Schema;

var PokemonSchema = new Schema({
  name: {
    type: String,
    required: true
  },
  types: [{
    type: String,
    required: true
  }],
  abilities: [{
    type: String,
    required: true
  }],
  stats: [{
    type: Number,
    required: true
  }],
  moves: [{
    type: String,
    ref: 'Attack'
  }]
});

var Pokemon = mongoose.model("Pokemon", PokemonSchema);

module.exports = Pokemon;

字符串

攻击模型

var mongoose = require("mongoose");
var Schema = mongoose.Schema;

var AttackSchema = new Schema({
  name: {
    type: String,
    required: true
  },
  power: {
    type: Number,
    required: true
  },
  accuracy: {
    type: Number,
    required: true
  },
  type: {
    type: String,
    required: true
  },
  damage_class: {
    type: String,
    required: true
  },
  target: {
    type: String,
    required: true
  }
});

var Attack = mongoose.model("Attack", AttackSchema);

module.exports = Attack;

型

填写编码

await Pokemon.find({}).populate({path: "moves"}).then((err, docs) => {
        if (err){
            console.log(err);
        }
        console.log(docs[0].moves[0].power)
    })

型
运行这个给了我一个错误，以至于控制台似乎无法记录整个事情。问题是口袋妖怪模型中的moves属性不是object_id吗？我用来获取这些数据的API只给了我攻击的名称，而不是它们各自的id。