Question

I am new to mongo and I want to use it in web application which has webform to edit relatively complex nested objects.

Long story short – I have editor written in JQuery/Knockout which generates proper json to save. If you saw video about knockout you can imaging how complex it could be.
My only problem that when I try to generate ID for object ob javascript side (for ObjectId property) it is ignored on deserialization (I am having “000000…00”)

I read about ObjectId specification http://www.mongodb.org/display/DOCS/Object+IDs and passing correct new id and trying to change last 3 bytes but it doesn’t work. Any ideas?

Currently I have something like:

function newMongoId() {
    var id = settings.BaseId // fixed part (first 18 bytes) from server
     + settings.LastId++; // increment which starts from 100000
    return { "$oid": id };
}

Answer 1

Well, that was issue with JavasriptSerializar which renamed all ‘Id’ property to ‘_id’.

After I assigned result of function above to _id all started to work fine