mongodb subelement querying

Question

here is the example

> db.test.insert({ name: \'test\', values: [ { check: true }, { check: false } ] })
> db.find({ values.check: true })[0]
         


        

Answer 1

> db.test.aggregate(
{ $unwind: "$values" },
{ $match: { "values.check": true } }
).result

[
        {
                "_id" : ObjectId("50e22046dc278908f3a38a8e"),
                "name" : "test",
                "values" : {
                        "check" : true
                }
        }
]