Querying nested embedded documents with Mongoose

Question

I\'m trying to query inside an embedded document that is nested. I\'ve attempted to \'populate\' the results but that fails.

How do I get back all of the book detail

Answer 1

right now nested sub document population is not supported. i added a link to this post to the open github issue for future tracking.

https://github.com/LearnBoost/mongoose/issues/601

Answer 2

Deep population was added in Mongoose 3.6. https://github.com/LearnBoost/mongoose/issues/1377#issuecomment-15911192

For your example, it would be something like:

Owner.find().populate('shelves').exec(PopulateBooks);

function PopulateBooks(err, owners) {
      if(err) throw err;
      // Deep population is here
      Book.populate(owners, { path: 'shelves.books' }).exec(callback);
}