Question

27

NodeJS and MongoDB FindAndModify() need remove or update

rated 0 times [ 28] [ 1] / answers: 1 / hits: 23077 / 10 Years ago, fri, june 20, 2014, 12:00:00

im trying to do a findAndModifiy in mongodb with nodejS, This is my code:

var nextBill = function (db, success, log) {

    var collection = db.collection('autoincrements');

    log.debug('autoIncrementRepository', 'nextBill');

    var result = collection.findAndModify({

        query: { _id: 'auto' },

        update: { $inc: { bill: 1 } },

        new: true

    });



    success(result.bill);

};

EDIT:

Try with callback

collection.findAndModify({

        query: { _id: 'auto' },

        update: { $inc: { bill: 1 } },

        new: true

    }, function (e, result) {

        success(result.budget);

    });

But give me the error need remove or update..But im doing it..

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katia

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2 Years ago

answered 10 Years ago zahrafrancisr · Accepted Answer

The .findAndModify() method in the node native driver implementation is different from the mongo shell implementation. To do an update as above you do:

collection.findAndModify(

   { _id: auto },

   { $inc: { bill: 1 } },

   function(err,doc) {

     // work here



   }

);

Oddly somewhat to remove you specify in options so the same would remove the matched document:

collection.findAndModify(

   { _id: auto },

   { $inc: { bill: 1 } },

   { remove: true },

   function(err,doc) {

     // work here



   }

);

The main difference being you do not name the key sections for the actions.