Question

我有一个用户对象，其中包含几个数组，看起来像这样：

{_id: "5b90a261ff3712000495ca29", 
  name: "Udit", 
  email: "guru.udit@bmail.com", 
  password: "sjsndj",
  education:[],
  professionalexp:[],
  projects:[],
  skills:[]
}

我正在使用Express API将数据与某些对象一起推入教育数组，以下是我尝试更新mongo数据的代码。当我尝试推送和更新数据时，看不到任何响应。我应该如何同时推送数组或多个数组

app.put('/api/updatefield/',function (req, res){
      User.update({_id: req.body._id}, {
        $push :{
          "education.$.University": "something that is there"
        }
      },function (err, result) {
        if (err) {
          res.send(err)
        }
        if (result) {
          res.json(result)
        }
      })

})

也供参考，这是我通过API正文推送的数据，我在其余服务器的req.body中获得了该信息

{"summary":"some summary","education":[{"name":"Institue","from":"19/07/2018","to":"30/07/2018"}],"professional":[{"name":"Company","from":"19/07/2018","to":"30/07/2018"}],"cardCount":1,"cardCount2":1}

Answer 1

您可以执行以下操作：

    User.update({_id: ObjectId("5b910b0acb5b7646e630cefe")}, {
    $push: {
        "education": {
            "summary": "some summary",
            "education": [{"name": "Institue", "from": "19/07/2018", "to": "30/07/2018"}],
            "professional": [{"name": "Company", "from": "19/07/2018", "to": "30/07/2018"}],
            "cardCount": 1, "cardCount2": 1
        }
    }
})

对于多个对象：

User.update({_id: ObjectId("5b910b0acb5b7646e630cefe")}, {
    $push: {
        "education": {
            $each: [{
                "summary": "some summary",
                "education": [{"name": "Institue", "from": "19/07/2018", "to": "30/07/2018"}],
                "professional": [{"name": "Company", "from": "19/07/2018", "to": "30/07/2018"}],
                "cardCount": 1, "cardCount2": 1
            }, {"a": 2}]
        }

    }
})

用于推入多个对象：

User.update({_id: ObjectId("5b910b0acb5b7646e630cefe")}, {
        $push: {
            "education": {
                $each: [{
                    "summary": "some summary",
                    "education": [{"name": "Institue", "from": "19/07/2018", "to": "30/07/2018"}],
                    "professional": [{"name": "Company", "from": "19/07/2018", "to": "30/07/2018"}],
                    "cardCount": 1, "cardCount2": 1
                }, {"a": 2}]
            },
           "professionalexp" : {"a":2}
        }
    })

无法将数据推送/更新到现有的mongo对象中

1 个答案: