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Kenil Vasani
Kenil Vasani

Kenil Vasani

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Asked: 2020-12-22T07:08:26+00:00 In:

.updateOne on MongoDB not working in Node.js

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I have the following code: 

connection((db) => {
            db.collection('orders')
                .updateOne(
                    { "_id": req.body._id}, // Filter
                    {"name": req.body.name} // Update
                )
                .then((obj) => {
                    console.log('Updated - ' + obj);
                    res.redirect('orders')
                })
                .catch((err) => {
                    console.log('Error: ' + err);
                })
        })

I want to change the name in the order but it doesn’t update it.
The result in the console is

Updated - {"n":0,"nModified":0,"ok":1}

I tried to read the documentation but it’s horrific

EDIT: {$set: {"name": req.body.name}}, didn’t work as well

EDIT 2: The passed ID matches the _id in the database. Could it be a problem that I’m querying for plain text ID while in the database it is referred to as “ObjectId(‘5a42ja…’)”

javascriptmongodbmongodb-querynode.js
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    1 Answer

    1. Kenil Vasani

      Kenil Vasani

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      Best Answer

      Maybe you should use “$set” in your update query like this :

      {$set: {"name": req.body.name}}, // Update

      More information in documentation

      EDIT

      If it doesn’t work, this is probably because there is no match with your filter.

      Maybe you should try to match with an ObjectId like this :

      var ObjectID = require('mongodb').ObjectID;

// In your request
{ "_id": ObjectID(req.body._id)}, // Filter

      Hope it helps.

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