How to duplicate a document using Mongoose JS

Question

Model.findById(req.body.myid, function (err, results) {
      var doc = new Model(results);
      doc._id = mongoose.Types.ObjectId();
      doc.serial = req.body.serial;
      doc.remarks = req.body.remarks;
      doc.save(function(err) {
        if(err){
          res.json({ success: false });
        }else {
          res.json({ success: true });
        }
      });
    });

How can i create copy of a document and save using mongoosejs ??

why this doesn't work? what is the error? try maybe to do results.toObject() — TomG
– TomG, Commented Sep 19, 2016 at 15:22
Please look at this question: stackoverflow.com/questions/18324843/… — Pter
– Pter, Commented Sep 19, 2016 at 15:23
code (node:8260) DeprecationWarning: Mongoose: mpromise (mongoose's default promise library) is deprecated, plug in your own promise library instead: mongoosejs.com/docs/promises.html { Error at model.wrappedPointCut [as save] message: 'No matching document found for id, name: 'VersionError' } code — Sri Rag
– Sri Rag, Commented Sep 19, 2016 at 15:39

Rifky Niyas · Accepted Answer · 2022-02-22 21:31:36Z

1

Also need to set isNew to true

doc._id = mongoose.Types.ObjectId();
doc.serial = req.body.serial;
doc.remarks = req.body.remarks;
doc.isNew = true;

edited Feb 22, 2022 at 21:31

Rifky Niyas

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answered Dec 1, 2020 at 5:25

Aleksey Pecheritsa

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