MongoDB - Update or Insert object in array

Question

I have the following collection

{
    "_id" : ObjectId("57315ba4846dd82425ca2408"),
    "myarray" : [ 
        {
            use         


        

Answer 1

array update and create don't mix in under one query, if you care much about atomicity then there's this solution:

normalise your schema to,

{
    "_id" : ObjectId("57315ba4846dd82425ca2408"),
    userId : ObjectId("570ca5e48dbe673802c2d035"),
    point : 5
}