How do I store a mongojs query result to a variable

Question

All i get from this code:

var views = db.books.find({"number":1}, {"views":1, _id:0}); console.log(views);

is this response:

{ _readableState:
  { highWaterMark: 16384,
    buffer: [],
    length: 0,
    pipes: null,
    pipesCount: 0,
    flowing: false,
    ended: false,
    endEmitted: false,
    reading: false,
    calledRead: false,
    sync: true,
    needReadable: false,
    emittedReadable: false,
    readableListening: false,
    objectMode: true,
    defaultEncoding: 'utf8',
    ranOut: false,
    awaitDrain: 0,
    readingMore: false,
    decoder: null,
    encoding: null },
 readable: true,
 domain: null,
 _events: {},
 _maxListeners: 10,
 _get: [Function] }

i've been stuck in this module for days now...any help would be much appreciated :) — user1710631, Jun 25 '13 at 03:53

score 0 · Accepted Answer · answered Jun 25 '13 at 03:56

0

You can use .findOne to return a single instance and get the result.

Find assumes you're querying for a collection of documents and return a cursor:

You can for example, convert it to an array:

db.books.find({"number":1}, {"views":1, _id:0}).toArray(function(err, results){
    console.log(results);
});

You can use .each to iterate through elements and .nextObject to get the next, they're all asynchronous obviously being IO operations in nodejs, here is the section on cursors in the manual.

answered Jun 25 '13 at 03:56

Benjamin Gruenbaum

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thanks! now how do i parse the result using node.js? – user1710631 Jun 25 '13 at 04:06
Sure, you sounded really desperate in that comment :) What `results` returns is just a JavaScript array. You handle it like you would any other type of array. If this answer solved your issue please consider accepting it. – Benjamin Gruenbaum Jun 25 '13 at 04:10
Doesn't it return an array of JSON texts? – user1710631 Jun 25 '13 at 04:50

How do I store a mongojs query result to a variable

1 Answers1