Mongoose: populate an object inside an array-CodePudding

I have a schema exported like that:

const PackageSchema = new Schema({
  name: { type: String, required: true },
  maneuver: [
    {
      maneuverId: {
        type: mongoose.Schema.Types.ObjectId,
        required: true,
        ref: ManeuverMainly,
      },
      period: { type: String, enum: ["day", "night"], required: true },
    },
  ],
  timestamp: { type: Date, default: Date.now() },
});

When I make a find() like that:

Package.find().populate("maneuver", "name").exec((err, data) => {
    if (err) {
      res.status(500).send({ message: "Failed!" });
      return;
    }
    res.status(200).send(data);
});

My populate method does not work. How can I populate my every maneuverId from PackageSchema with my name column from ManeuverMainlySchema?

Obs: my ManeuverMainlySchema bellow:

const ManeuverMainlySchema = new Schema({
  name: { type: String, required: true },
  description: { type: String, required: true },
  timestamp: { type: Date, default: Date().now },
});

CodePudding user response：

taken from Mongoose populate with array of objects containing ref you have to specify the field within the object of the array you want to populate against.

Package.find().populate("maneuver.maneuverId", "name").exec((err, data) => {
    if (err) {
      res.status(500).send({ message: "Failed!" });
      return;
    }
    res.status(200).send(data);
});