MongoJS is a Node.js package to access MongoDB.
References:
Questions tagged [mongojs]
306 questions
58
votes
2 answers
Get latest MongoDB record by field of datetime
I have a collection like this:
{
'datetime': some-date,
'lat': '32.00',
'lon': '74.00'
},
{
'datetime': some-date,
'lat': '32.00',
'lon': '74.00'
}
How can I get the latest record from MongoDB, where the datetime is the…
FarazShuja
- 2,287
- 2
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- 34
27
votes
3 answers
Why do I need Mongoose or Mongojs for Node.js?
Major Questions
Currently I'm very confused, the main questions are: What is the use of Mongoose/Mongojs? What would be different if I run Node.js without Mongoose/Mongojs?
I can't find any good explanation of the big picture of how Mongoose or…
HaoQi Li
- 11,970
- 14
- 58
- 77
20
votes
1 answer
Inserting the current datetime in mongodb
I have been having trouble inserting an actual datetime object in mongodb using the mongojs driver for nodejs. Any help?
var currentdate = new Date();
var datetime = currentdate.getDate() + "/"
+ (currentdate.getMonth()+1) + "/"
+…
David
- 679
- 1
- 9
- 22
19
votes
2 answers
MongoDb : How to insert additional object into object collection?
I have a document "owner" that can have "n" number of camps and camps have "instructors" and instructors have "classes". Earlier I tried accomplishing this with nested arrays (see link to my post below), however I learned that the positional…
cpeele00
- 883
- 4
- 14
- 29
17
votes
5 answers
TypeError: Cannot read property '_id' of undefined
I am getting error "TypeError: Cannot read property '_id' of undefined" on a simple post request to save a document to the collection called books,
My payload looks like this:
{
"name": "practical view",
"author": "DN",
"location": "room…
Chidu Murthy
- 688
- 3
- 10
- 26
15
votes
2 answers
Callback was already called async parallel
Hi I am trying to use the Async module to retrieve two users and do some processing after they have both been retrieved however I keep getting the error message: Callback was already called. Below is the code i currently…
sazap10
- 263
- 2
- 7
- 15
13
votes
1 answer
How to dynamically $set a subdocument field in mongodb?
I've run into a situation where I need to dynamically update the value of a field in a subdocument. The field may or may not already exist. If it doesn't exist, I'd like mongo to create it.
Here's an example document that would be found in my Teams…
AJB
- 7,389
- 14
- 57
- 88
12
votes
2 answers
How do I iterate over an entire MongoDB collection using mongojs?
I'm using mongojs and I'm trying to iterate over all elements in a collection
index = 0
db.keys.find({}, {uid: 1, _id: 0}).forEach((err, key) =>
if err?
console.log err
else
console.log (++index) + " key: " + key_uid
which…
Loourr
- 4,995
- 10
- 44
- 68
12
votes
2 answers
Send MongoDB query result as JSON using express
I'm writing an application where I use express, Node.js and MongoDB (using mongojs). I have a module db.js and a server.js, which have the snippets below.
db.js
var getUsersByCity = function(city, callback) {
db.users.find({'city':…
Amaury Medeiros
- 2,093
- 4
- 26
- 42
7
votes
4 answers
MongoDB query for document older than 30 seconds
Does anyone have a good approach for a query against a collection for documents that are older than 30 seconds. I'm creating a cleanup worker that marks items as failed after they have been in a specific state for more than 30 seconds.
Not that it…
Nick Parsons
- 8,377
- 13
- 48
- 70
6
votes
1 answer
how to insert a .json document to mongo server by mongojs in node
I'm new with nodeJS and MongoDB.
I have this code:
var fs = require('fs');
var mongojs = require('mongojs');
var db = mongojs('monitor', ["configurations"]);
fs.readFile('json/object1.json', 'utf8', function (err, data) {
if (err) throw err;
…
Avigayil
- 63
- 1
- 1
- 3
6
votes
2 answers
How do I capture a MongoDB query as a string and display it in my Node JS page (using the mongojs driver)?
I would like to be able to query my mongoDB and display this result on my web page made with Node...right now I am using the mongojs driver - I've found the driver very very good for putting data into the DB - the syntax is the same as the Mongo…
PinkElephantsOnParade
- 6,452
- 12
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- 91
5
votes
2 answers
Why is mongo dot notation replacing an entire subdocument?
I've got the following doc in my db:
{
"_id": ObjectId("ABCDEFG12345"),
"options" : {
"foo": "bar",
"another": "something"
},
"date" : {
"created": 1234567890,
"updated": 0
}
}
And I want to update options.foo and…
AJB
- 7,389
- 14
- 57
- 88
5
votes
1 answer
How to search for text or expression in multiple fields
db.movies.find({"original_title" : {$regex: input_data, $options:'i'}}, function (err, datares){
if (err || datares == false) {
db.movies.find({"release_date" : {$regex: input_data + ".*", $options:'i'}}, function (err,…
summerNight
- 1,446
- 3
- 25
- 52
5
votes
3 answers
How to update the TTL on a collection?
Using NodeJS + MongoJS, I have connection to a mongo DB.
I set a TTL on a collection with:
myCollection.createIndex({createdAt: 1}, {expireAfterSeconds: 60 * 30})
Is it now possible to update the value for expireAfterSeconds ?
If so, what's the…
Running Turtle
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- 73