CODEWITHSUNDEEP
node.jsmongodbmongoose
alyx
alyx

Reputation: 2733

Mongoose: Documents aren't updating

I'm finding documents by _id in a loop and updating a boolean in each document:

db.items.findById(key, function(error, item) {

  item.flags.cake = false;

  item.update(function(error, zzz) {
    if(error) return next(error);
    console.log('output ',zzz);
  });    
});

But the documents will not update. The mongoose schema for item:

flags: {
    cake:Boolean
}

Upvotes: 0

Views: 44

Answers (1)

chridam
chridam

Reputation: 103305

Use the save() method instead which makes use of a callback that will receive three parameters you can use: 1) err if an error occurred 2) item which is the saved item 3) numAffected will be 1 when the document was successfully persisted to MongoDB, otherwise 0.

Items.findById(key, function(error, item) {    
    item.flags.cake = false;

    item.save(function (err, item, numAffected) {
        if (err) console.log(err)
        console.log('output ', item);
    });    
});

As an extra measure of flow control, save will return a Promise.

item.save().then(function(item) {
    console.log('output ', item);
});

Upvotes: 1

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