How to update in mongoose?


I am new at Mongoose/nodejs and I am struggling with a simple update of an array within an array.

Here's the schema:

var County = new Schema({
_id                 : Schema.ObjectId,
name                : String,
biggestCity         : String

var Country = new Schema({
_id                 : Schema.ObjectId,
name                : String,
counties                : {type: [County], ref: "County"}

var Continent = new Schema({
    _id       : Schema.ObjectId,
    countries : {type: [Country], ref: "Country"},

And here's the update code I've been trying:

var continents = mongoose.model("Continent");
var update = { "": newName, "countries.counties.biggestCity": newBiggestCity };
var conditions = { "_id": countryId, "": countryName, "": countyName };
var options = { multi: false }; 
wagers.update(conditions, update, options, function(err, numAffected) {
    //callback code...

When doing this, the error in err says "Can't append to array using string field name 'counties'". What does this mean? What am I doing wrong?

Problem courtesy of: tremolo


You should define the child object as another Schema, not just as a list of some anonymous object. (Reference.)

Try defining Country as a separate Schema, nest that in Continent, then do your update.

Solution courtesy of: Ashe


There is currently no discussion for this recipe.

This recipe can be found in it's original form on Stack Over Flow.