Database Moongose不更新嵌套数组

我要更新其事件的eventName的值。\u ID为591e953982c0423238721b09

我已经执行了以下查询

  Datemodel = {
    "_id": "5922f58599ff690ea4ffb4cd",
      "events": [
        {
          "eventDate": "2017-04-30T18:30:00.000Z",
          "eventName": "Project Name",
          "_id": "591e953982c0423238721b09"
        },
        {
          "eventDate": "2017-05-15T18:30:00.000Z",
          "eventName": "Project Name",
          "_id": "591e953982c0423238721b08"
        },
        {
          "eventDate": "2017-05-29T18:30:00.000Z",
          "eventName": "Project Name",
          "_id": "591e953982c0423238721b07"
        }
      ]
    }

---

请帮助我将数据更新到数据库中

Try

var query={“events.\u id:eventID}

query={“events.\u id:eventID}

。您缺少句点

，这里是输入错误，请确保您有一个有效的输入值，并且在mongodb中有匹配的类型。对于objectId类型，这可能是字符串与objectId。尝试将字符串强制转换为查询中的objectid<代码>变量查询={“events.\u id”：mongoose.Types.ObjectId（eventID）}仍不工作

    router.route('/postPhase')
      .post(function (req, res) {
 var eventID = req.body.eventID
var eventName = req.body.eventName
var query = {
 events._id: eventID
}
dataModal.findOneAndUpdate(query,{$set:{events.$.eventName:"eventName"}},{"new":true},function(err, Data){
res.json(data)

})

})