query multiple nested objects - node.js

Question

I have a problem while querying mongodb with nested multiple objects.
I am trying like this
Project.find()
.then((project) => {
RoadMap.find({
scheduledDate: {
$gte: new Date(req.params.gte), $lt: new
Date(req.params.lt)
}
})
.populate("roadMap", "_id title")
.populate("projectId", "_id title photo ")
.exec((err, roadmap) => {
if (err) {
return res.status(422).json({ error: err });
}
res.json({ project, roadmap });
});
})
.catch((err) => {
return res.status(404).json({ error: "project not found" });
});
I am getting results like this
{
project: {
}
roadmap: [{}{}]
}
but I want to achieve like this
{
project: {
_id:
title:
roadmap: [{},{}]
}
}
this is my schema:
projectShema:
const mongoose = require("mongoose");
const { ObjectId } = mongoose.Schema.Types;
const projectSchema = new mongoose.Schema(
{
title: {
type: String,
required: true,
},
photo: {
type: String,
required: true,
},
caption: {
type: String,
},
postedBy: {
type: ObjectId,
ref: "User",
},
news: [
{
type: ObjectId,
ref: "News",
},
],
roadMap: [
{
type: ObjectId,
ref: "RoadMap",
},
],
},
{ timestamps: true }
);
mongoose.model("Project", projectSchema);
roadMapSchema:
const mongoose = require("mongoose");
const { ObjectId } = mongoose.Schema.Types;
const roadmapSchema = new mongoose.Schema(
{
title: {
type: String,
required: true,
},
postedBy: {
type: ObjectId,
ref: "User",
},
projectId: { type: ObjectId, ref: "Project" },
categoryName: { type: String },
status: {
type: String,
default: "created",
},
},
{ timestamps: true }
);
mongoose.model("RoadMap", roadmapSchema);
I am not sure how to achieve the results, do I need to change schema or it is possible here also?
thank you