The correct syntax for sorting mongoose 3.x populated document

Question

I have two MongoDB collections Customer and User in 1:1 relationship. I\'m trying to query both documents using Mongoose Population an

Answer 1

I don't know why people are saying you can't sort a populated field....

model.findOne({name: request.params.posts})
    .populate('messages', '_id message createDate', null, { sort: { 'createDate': -1 } })
    .exec(function(error, results) {
})

Where my model "posts", has a ObjectID messages array in it, that is populated here and sorted by it's createDate. It works great.