How do I push nested array values to a mongodb document?

Question

If I have a document in mongodb with this structure:

{
    "_id": "user1",
    "loc": [
        {
            "lon": 51.12076493195686,
            "lat": -113.98040771484375
        },
        {
            "lon": 51.10682735591432,
            "lat": -114.11773681640625
        }
    ]
}

How would I be able to push a new array containing lon and lat within the loc list?

The structure I am trying to use is this: db.collection('location').update({_id:'user1'},{'$push': {"lat": "-107.10400390625", "lon": "33.32343323432" }})

This obviously does not work because the lat and lon are nested within loc.

I can't try it myself at the moment, but on my opinion only the 'loc' is missing after $push: — hotS85
– hotS85, Commented Mar 9, 2012 at 18:14
Yes I added it: db.collection('location').update({_id:'user1'},{"$push": { loc: {lon: 69.09144802136697, lat: -107.10400390625 }}}) This works...thanks. — Jimbobway
– Jimbobway, Commented Mar 9, 2012 at 22:00

danmactough · Accepted Answer · 2012-03-09 18:15:33Z

4

db.collection('location').update({_id:'user1'},{'$push': { "loc": {"lat": "-107.10400390625", "lon": "33.32343323432" }}})

answered Mar 9, 2012 at 18:15

danmactough

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