Mongoose: nested ref models population

Question

How can I populate nested referenced models?

For example:

// \'Collection\' model
var CollectionSchema = new Schema({
  collection_name: String,
  _g         


        

Answer 1

var Group = mongoose.model('Group', GroupSchema);
Group.find().populate('_item').populate('_meta').exec(function (error, groups) {
  //groups will be an array of group instances and
  // _item and _meta will be populated
});