可以将 Mongo 数据保存到多个文档中

Question

我的问题是是否可以将 Mongo 数据保存到多个文档中并将它们链接在一起？我有非常大的 json 文件，所以我想将它们拆分为多个文件并以这种方式保存它们，每个文档文件的大小会更小吗？

这是我的代码，它创建了非常大的 JSON 文件和子数组，我想让每个文档的大小尽可能小。

 router.post("/request/partial", async (req, res) => {
      const partial = new PartialRequest({
        startingDate: req.body.startingDate,
        requestID: req.body.requestID,
        whoCreated: req.body.whoCreated,
        isNewRequest: true,
        specialRequest: req.body.specialRequest,
        contactInformation: req.body.contactInformation,
        requestInformation: req.body.requestInformation,
        orderInformation: req.body.orderInformation,
        jobSiteInformation: req.body.jobSiteInformation,
 installations : req.body.installations;
      });
    await partial.save().then(result => {
        return res.status(200).json({
          message: 'Handling POST request to /partial',
          result: result
        });
      });
      await Request.findOneAndRemove({
        requestID: req.body.requestID
      }).then(data => {
        return res.status(200).json(data);
      }).catch(error => {
        return res.status(500).json({
          error: error
        })
      })
    })

Answer 1

在这里您可以在 for 循环中更新您的文档。

在我的示例中，根据您的数据库更改必要的关键字，

userController.signUp = async function(req,res){
    req.body.installation = [
    {
        "phase":"abc",
        "phase" : "driveOne",
        "text" : "Drive One",
        "textKey" : "",
        "index" : "1.0",
        "subjects":[{
        "id":"1.1.1",
        "text":"test",
        "textKey":"",
        }]
    },


    {
        "phase":"abc",
        "phase" : "driveOne",
        "text" : "Drive One",
        "textKey" : "",
        "index" : "1.0",
        "subjects":[{
        "id":"1.1.1",
        "text":"test",
        "textKey":"",
        }]
    },
    {
        "phase":"abc",
        "phase" : "driveOne",
        "text" : "Drive One",
        "textKey" : "",
        "index" : "1.0",
        "subjects":[{
        "id":"1.1.1",
        "text":"test",
        "textKey":"",
        }]
    },
    {
        "phase":"abc",
        "phase" : "driveOne",
        "text" : "Drive One",
        "textKey" : "",
        "index" : "1.0",
        "subjects":[{
        "id":"1.1.1",
        "text":"test",
        "textKey":"",
        }]
    },

    ]
    //Your DB name instead of userModel
    userModel.findOne({_id: "5d1d9691019db61515450574"})
    .exec(async (err , found)=>{
        if(err){
            res.send(err);
        }else{
            for(var i = 0; i< req.body.installation.length; i++){
                var hey = req.body.installation[i];
                found.installation[i] = req.body.installation[i];
                console.log("=============================+>" ,found.installation)
                await userModel.findOneAndUpdate({_id: found._id} , found, {upsert: true , new: true});

            }
            res.send(found);
        }
    });

}

我已经尝试使用 200 万条记录，但它没有给出错误。