JAVASCRIPT

mongoose save or update

// This will create another document if it doesn't exist
findByIdAndUpdate(_id, { something: 'updated' }, { upsert: true });

Update data using mongoose

const res = await Person.updateOne({ name: 'Jean-Luc Picard' }, { ship: 'USS Enterprise' });
res.n; // Number of documents matched
res.nModified; // Number of documents modified

MONGOOSE update

   Modelomodel
      .findOne({ Id: Id })
      .update(body)
      .exec()

update query in mongoose

var conditions = { name: 'bourne' } 
  , update = { $inc: { visits: 1 }}

Model.update(conditions, update, { multi: true }).then(updatedRows=>{
  
}).catch(err=>{
  console.log(err)
  
})

How to update one mongoose db

model.updateOne({_id:'YOURID'}, {DATA YOU WANT TO UPDATE}, (err, result) => {
	if(err) throw err
    
    console.log(err)
})

Mongoose UPDATE

// Update a user's info, by username
/* We’ll expect JSON in this format
{
  Username: String,
  (required)
  Password: String,
  (required)
  Email: String,
  (required)
  Birthday: Date
}*/
app.put('/users/:Username', (req, res) => {
  Users.findOneAndUpdate({ Username: req.params.Username }, { $set:
    {
      Username: req.body.Username,
      Password: req.body.Password,
      Email: req.body.Email,
      Birthday: req.body.Birthday
    }
  },
  { new: true }, // This line makes sure that the updated document is returned
  (err, updatedUser) => {
    if(err) {
      console.error(err);
      res.status(500).send('Error: ' + err);
    } else {
      res.json(updatedUser);
    }
  });
});

update mongoose

const MyModel = mongoose.model('Test', new Schema({ name: String }));
const doc = new MyModel();

doc instanceof MyModel; // true
doc instanceof mongoose.Model; // true
doc instanceof mongoose.Document; // true

mongoose update

Model.update = function (query, doc, options, callback) { ... }

update mongoose

CommentaireArticleModel.update({ pseudo : 'Atinux'}, { pseudo : 'Nikita' }, { multi : true }, function (err) {
  if (err) { throw err; }
  console.log('Pseudos modifiés !');
});

save or update mongoose

// SAVE NEW OR UPDATE EXISTING COLLECTION
AnnoucementTagsModel.findOneAndUpdate({_id: announcementId}, newAnnoucementTags, {upsert: true}, function (err, doc) {
	if (error) throw new Error(error);
	console.log("succesfully saved");
});