node.js - 路径 "{ _id: 5bd587cffb6fc074abb12cb8,\n name:\' 处的值\',\n year:\' name 2\',\n id:\' 4\' }"102 "winner"转换为字符串失败

Question

我的数据库集合:

获奖者:

{
    "_id": {
        "$oid": "5bd58921fb6fc074abb12ce8"
    },
    "id": "301",
    "winner": [
        "101",
        "102"
    ]
}

获胜者模型在这里

var winner = new Schema({
  _id: String,
  id: String,
  winner:[ String ]
},
  {
  strict: false
});
var Winner = mongoose.model('winner', winner);

获胜者集合中获胜者数组中的值 101 和 102 应使用 {"sample":"data"} 进行更新

 var result = [{"id": "101" },{"id": "102" }];
 var length = result.length;
 for(var i=0;i<length;i++)
  {
  Winner.updateMany(
    { "winner" : result[i].id },
    { $set: { "winner" : result[i] } }, function (err,output) {
      if(err) 
      {
      console.log(err);
      }
      else
      {
      console.log(output);
      }
    }
 );
}

预期输出:

获胜者集合应更新为

获奖者:

{
    "_id": {
        "$oid": "5bd58921fb6fc074abb12ce8"
    },
    "id": "301",
    "winner": [
        {"sample":"data"},
        {"sample":"data"}
    ]
}

Answer 1

首先您要插入字符串数组，但后来您想要存储对象数组。 Mongoose 模式不允许这样做。您必须将架构从 winner:[ String ] 更新为 winner:[{sample: String}] 并首先存储对象数组。

{
    "_id": {
        "$oid": "5bd58921fb6fc074abb12ce8"
    },
    "id": "301",
    "winner": [
        {"sample": "101"},
        {"sample": "102"}
    ]
}

编辑:您也想更新

Winner.updateMany(
    { "winner" : result[i].id },
    { $set: { "winner" : result[i] } },
.
.

至

Winner.updateMany(
    { "winner.sample" : result[i].id },
    { $set: { "winner" : result[i] } },
.
.