Anyway to get just one element in an embedded array?

Mongo querying

db.users.insert({"name": "Pepe", "projects": [{"id": "123", "role": 1}, {"id": "234", "role": 1}, {"id": "345", "role": 2}, ...]});


var user = db.find({"projects.id": "234"});

// Any way to get just: user:
{
  "name": "Pepe",
  "projects": [{"id": "234", "role": 1}]
}