Add several subdocument in mongodb

Question

i have the following strucure:

{
'name':'something',
'commens':{
            'value':'something'
           }, {
            'value':'something else'
           }
}

My question is, how can i insert/update those subdocuments?

Can you be a bit more specific? Are you using a programming language, or are you referring to the MongoDB shell? — Erik Pragt
– Erik Pragt, Commented May 9, 2013 at 15:26

Erik Pragt · Accepted Answer · 2013-05-09 15:30:30Z

1

If you are using the MongoDB console, you will have to use the $ positional operator to update embedded documents.

db.yourCollection.update({ "_id" : ObjectId("4a33289ae89489"), "commens._id" : ObjectId("32321eae20fc603aee49124") }, { "$set" : { "commens.$.value" : "something else" } })

answered May 9, 2013 at 15:30

Erik Pragt

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Comments

Abhishek Kumar · Accepted Answer · 2013-05-09 15:33:26Z

0

I am assuming 'comments' is an array, otherwise the example you posted in not a valid JSON/BSON. For array operations, you can look : http://docs.mongodb.org/manual/reference/operator/update-array/

In update query only, you can do upsert, which will insert the document if it don't exists.

answered May 9, 2013 at 15:33

Abhishek Kumar

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