Updating nested documents in mongodb

x = { 'name': 'test', anotherdoc: { 'something': 'someval', somenum : 1 } }
> x
{"name" : "test" , "anotherdoc" : {"something" : "someval" , "somenum" : 1}}
> collection = db.foo;
test.foo
> collection.insert(x)
> collection.find()
{"_id" :  ObjectId( "4a61b6711591f41f0f1bc5ff")  , "name" : "test" , "anotherdoc" : {"something" : "someval" , "somenum" : 1}}
> x
{"name" : "test" , "anotherdoc" : {"something" : "someval" , "somenum" : 1}}
> x._id
> x = collection.findOne()
{"_id" :  ObjectId( "4a61b6711591f41f0f1bc5ff")  , "name" : "test" , "anotherdoc" : {"something" : "someval" , "somenum" : 1}}
> collection.update({'_id': x._id}, {$set: {'anotherdoc.something': 'somenewval'}} )
> collection.find()
{"_id" :  ObjectId( "4a61b6711591f41f0f1bc5ff")  , "name" : "test" , "anotherdoc" : {"somenum" : 1 , "something" : "somenewval"}}
>
Topics: MongoDB

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