Question

我试图从表单更新MongoDB Atlas集合上的文档。

我使用Node.js，MongoDB驱动程序和bodyParser。

app.post("/quotes", (req, res) => {

    client.connect(err => {
        const db = client.db("test");
        const userID = {$eq: {"userID" : (req.body.userID)}}
        const update = {$set: {"name": (req.body.name)}}
        db.collection("customers").updateOne(userID, update, function(err, res) {
            console.log("POST /quotes");
            client.close();
        });
    });
    res.redirect("/user");

});

他们的预期输出是我收藏中的更新文档，但实际输出在我的控制台日志中。

我的控制台日志：

the options [servers] is not supported
the options [caseTranslate] is not supported
the options [dbName] is not supported
the options [srvHost] is not supported
the options [credentials] is not supported

Answer 1

req.body中的userId类型为String，那么您必须将其转换为ObjectId

 const mongo = require('mongodb');

 app.post("/quotes", (req, res) => {
 client.connect(err => {
    const db = client.db("test");


    try {
       mongoId = new mongo.ObjectId(req.body.userID);
    } catch (err) {
       if (err) return res.send({ error: err });
    }

    const userID = {$eq: {"userID" : (mongoId)}}
    const update = {$set: {"name": (req.body.name)}}
    db.collection("customers").updateOne(userID, update, function(err, res) {
        console.log("POST /quotes");
        client.close();
    });
   });
   res.redirect("/user");

});

Answer 2

我发现了！

app.post("/quotes", (req, res) => {

    client.connect(err => {
        const db = client.db("test");
        const userID = {$eq: {"userID" : (req.body.userID)}}
        const update = {$set: {"name": (req.body.name)}}
        db.collection("customers").updateOne(userID, update, function(err, res) {
            console.log("POST /quotes");
        });
    });
    client.close();
    res.redirect("/user");

});

client.close();必须在函数之外。

为什么updateOne不更新我的收藏集？

2 个答案: