Looks like an old question, but I think the schema is a slight different and I'm not sure if this is the proper schema definition, but I want it this way.
import { Schema, model } from 'mongoose';
import * as mongoose from 'mongoose';
const ObjectId = mongoose.Schema.Types.ObjectId;
const MenuSchema = new Schema({
parent: {
type: Schema.Types.ObjectId,
ref: 'Menu', required: true, default: null },
url: {
type: String,
required: true,
unique: true,
},
title: {
en: {
type: String,
required: true,
},
ar: {
type: String,
required: true,
},
},
type: {
// internal or external
type: String,
required: false,
default: 'internal',
},
displayOrder: { type: Number, required: true, default: 0 },
image: {
// For icon
type: Object,
},
createdAt: { type: Date, default: Date.now },
createdBy: { type: ObjectId, ref: 'User' },
updatedAt: { type: Date, default: Date.now },
updatedBy: { type: ObjectId, ref: 'User' },
});
My data are like below
{
"_id" : ObjectId("5f97be37bf401d75ed7de8a8"),
"parent" : null,
"displayOrder" : NumberInt(0),
"image" : null,
"title" : {
"en" : "Home",
"ar" : "الصفحة الرئيسية"
},
"url" : "/"
}
{
"_id" : ObjectId("5f97eca04b076b2b8cb5646b"),
"type" : "internal",
"url" : "/about",
"title" : {
"en" : "About",
"ar" : "حول"
},
"createdAt" : ISODate("2020-10-27T09:47:12.396+0000"),
"updatedAt" : ISODate("2020-10-27T09:47:12.396+0000"),
"__v" : NumberInt(0),
"displayOrder" : NumberInt(1),
"image" : null,
"parent" : null
}
{
"_id" : ObjectId("5f99492da0c7207dfb13aa03"),
"type" : "internal",
"url" : "/our-partners",
"title" : {
"en" : "Our Partners",
"ar" : "شركاؤنا"
},
"createdAt" : ISODate("2020-10-28T10:34:21.353+0000"),
"updatedAt" : ISODate("2020-10-28T10:34:21.354+0000"),
"__v" : NumberInt(0),
"image" : null,
"displayOrder" : NumberInt(8),
"parent" : null
}
{
"_id" : ObjectId("5f9a7971f8443ecbdb787c4a"),
"parent" : null,
"type" : "internal",
"displayOrder" : NumberInt(2),
"url" : "/services",
"title" : {
"en" : "Services",
"ar" : "خدمات"
},
"createdAt" : ISODate("2020-10-29T08:12:33.366+0000"),
"updatedAt" : ISODate("2020-10-29T08:12:33.366+0000"),
"__v" : NumberInt(0),
"image" : null
}
{
"_id" : ObjectId("5f9a93f3dc3f16e672d9e84e"),
"parent" : null,
"type" : "internal",
"displayOrder" : NumberInt(3),
"url" : "products",
"title" : {
"en" : "Products",
"ar" : "منتجات"
},
"createdAt" : ISODate("2020-10-29T10:05:39.551+0000"),
"updatedAt" : ISODate("2020-10-29T10:05:39.551+0000"),
"__v" : NumberInt(0)
}
{
"_id" : ObjectId("5f9b7a9c95213c7e3736e63e"),
"parent" : null,
"type" : "internal",
"displayOrder" : NumberInt(4),
"url" : "projects",
"title" : {
"en" : "Projects",
"ar" : "المشاريع"
},
"createdAt" : ISODate("2020-10-30T02:29:48.863+0000"),
"updatedAt" : ISODate("2020-10-30T02:29:48.863+0000"),
"__v" : NumberInt(0)
}
{
"_id" : ObjectId("5f9b7aa395213c7e3736e63f"),
"parent" : null,
"type" : "internal",
"displayOrder" : NumberInt(5),
"url" : "gallery",
"title" : {
"en" : "Gallery",
"ar" : "صالة عرض"
},
"createdAt" : ISODate("2020-10-30T02:29:55.845+0000"),
"updatedAt" : ISODate("2020-10-30T02:29:55.845+0000"),
"__v" : NumberInt(0)
}
{
"_id" : ObjectId("5f9b7af995213c7e3736e640"),
"parent" : null,
"type" : "internal",
"displayOrder" : NumberInt(6),
"url" : "downloads",
"title" : {
"en" : "Downloads",
"ar" : "التحميلات"
},
"createdAt" : ISODate("2020-10-30T02:31:21.205+0000"),
"updatedAt" : ISODate("2020-10-30T02:31:21.205+0000"),
"__v" : NumberInt(0)
}
{
"_id" : ObjectId("5f9b7b6095213c7e3736e641"),
"parent" : null,
"type" : "internal",
"displayOrder" : NumberInt(7),
"url" : "contact",
"title" : {
"en" : "Contact",
"ar" : "اتصل"
},
"createdAt" : ISODate("2020-10-30T02:33:04.071+0000"),
"updatedAt" : ISODate("2020-10-30T02:33:04.071+0000"),
"__v" : NumberInt(0)
}
{
"_id" : ObjectId("5f9b8459391ab38846326a43"),
"parent" : "5f97eca04b076b2b8cb5646b",
"type" : "internal",
"displayOrder" : NumberInt(0),
"url" : "about",
"title" : {
"en" : "Corporate Overview",
"ar" : "لمحة عن الشركة"
},
"createdAt" : ISODate("2020-10-30T03:11:21.048+0000"),
"updatedAt" : ISODate("2020-10-30T03:11:21.048+0000"),
"__v" : NumberInt(0),
"image" : null
}
{
"_id" : ObjectId("5f9b8bb8391ab38846326a44"),
"parent" : "5f97eca04b076b2b8cb5646b",
"type" : "internal",
"displayOrder" : NumberInt(1),
"url" : "md-message",
"title" : {
"en" : "Md's Message",
"ar" : "رسالة د"
},
"createdAt" : ISODate("2020-10-30T03:42:48.341+0000"),
"updatedAt" : ISODate("2020-10-30T03:42:48.341+0000"),
"__v" : NumberInt(0)
}
{
"_id" : ObjectId("5f9b8c0e391ab38846326a45"),
"parent" : "5f97eca04b076b2b8cb5646b",
"type" : "internal",
"displayOrder" : NumberInt(2),
"url" : "certificates",
"title" : {
"en" : "Certificates",
"ar" : "الشهادات"
},
"createdAt" : ISODate("2020-10-30T03:44:14.876+0000"),
"updatedAt" : ISODate("2020-10-30T03:44:14.876+0000"),
"__v" : NumberInt(0),
"image" : null
}
{
"_id" : ObjectId("5f9b8c4e391ab38846326a46"),
"parent" : "5f9a7971f8443ecbdb787c4a",
"type" : "internal",
"displayOrder" : NumberInt(0),
"url" : "before-sale-service",
"title" : {
"en" : "Before Sale Service",
"ar" : "خدمة ما قبل البيع"
},
"createdAt" : ISODate("2020-10-30T03:45:18.489+0000"),
"updatedAt" : ISODate("2020-10-30T03:45:18.489+0000"),
"__v" : NumberInt(0)
}
{
"_id" : ObjectId("5f9b8c98391ab38846326a47"),
"parent" : "5f9a7971f8443ecbdb787c4a",
"type" : "internal",
"displayOrder" : NumberInt(1),
"url" : "installation",
"title" : {
"en" : "Installation",
"ar" : "التركيب"
},
"createdAt" : ISODate("2020-10-30T03:46:32.943+0000"),
"updatedAt" : ISODate("2020-10-30T03:46:32.943+0000"),
"__v" : NumberInt(0)
}
{
"_id" : ObjectId("5f9b8ccb391ab38846326a48"),
"parent" : "5f9a7971f8443ecbdb787c4a",
"type" : "internal",
"displayOrder" : NumberInt(3),
"url" : "maintenance",
"title" : {
"en" : "Maintenance",
"ar" : "اعمال صيانة"
},
"createdAt" : ISODate("2020-10-30T03:47:23.943+0000"),
"updatedAt" : ISODate("2020-10-30T03:47:23.944+0000"),
"__v" : NumberInt(0)
}
{
"_id" : ObjectId("5f9b8d04391ab38846326a49"),
"parent" : "5f9a7971f8443ecbdb787c4a",
"type" : "internal",
"displayOrder" : NumberInt(3),
"url" : "repairs-modernization",
"title" : {
"en" : "REPAIRS AND MODERNIZATION",
"ar" : "الإصلاح والتحديث"
},
"createdAt" : ISODate("2020-10-30T03:48:20.958+0000"),
"updatedAt" : ISODate("2020-10-30T03:48:20.958+0000"),
"__v" : NumberInt(0),
"image" : null
}
{
"_id" : ObjectId("5f9b90180d34dd99a22729fc"),
"parent" : "5f9b7aa395213c7e3736e63f",
"type" : "internal",
"displayOrder" : NumberInt(0),
"url" : "image-gallery",
"title" : {
"en" : "Image Gallery",
"ar" : "معرض الصور"
},
"createdAt" : ISODate("2020-10-30T04:01:28.652+0000"),
"updatedAt" : ISODate("2020-10-30T04:01:28.652+0000"),
"__v" : NumberInt(0)
}
{
"_id" : ObjectId("5f9b903a0d34dd99a22729fd"),
"parent" : "5f9b7aa395213c7e3736e63f",
"type" : "internal",
"displayOrder" : NumberInt(1),
"url" : "video-gallery",
"title" : {
"en" : "Video Gallery",
"ar" : "معرض الفيديو"
},
"createdAt" : ISODate("2020-10-30T04:02:02.999+0000"),
"updatedAt" : ISODate("2020-10-30T04:02:02.999+0000"),
"__v" : NumberInt(0)
}
My Query to retrieve the parent menu (with parent: null) with childs (parent: someid) is below
db.getCollection("menus").aggregate([
{
$match: {
'parent': null
}
},
{
$lookup: {
from: 'menus',
localField: '_id',
foreignField: 'parent',
as: 'childs'
}
}
])
But my childs sub document array from the above query is empty.
{
"_id" : ObjectId("5f97be37bf401d75ed7de8a8"),
"parent" : null,
"displayOrder" : NumberInt(0),
"image" : null,
"title" : {
"en" : "Home",
"ar" : "الصفحة الرئيسية"
},
"url" : "/",
"childs" : [
]
}
{
"_id" : ObjectId("5f97eca04b076b2b8cb5646b"),
"type" : "internal",
"url" : "/about",
"title" : {
"en" : "About",
"ar" : "حول"
},
"createdAt" : ISODate("2020-10-27T09:47:12.396+0000"),
"updatedAt" : ISODate("2020-10-27T09:47:12.396+0000"),
"__v" : NumberInt(0),
"displayOrder" : NumberInt(1),
"image" : null,
"parent" : null,
"childs" : [
]
}
{
"_id" : ObjectId("5f99492da0c7207dfb13aa03"),
"type" : "internal",
"url" : "/our-partners",
"title" : {
"en" : "Our Partners",
"ar" : "شركاؤنا"
},
"createdAt" : ISODate("2020-10-28T10:34:21.353+0000"),
"updatedAt" : ISODate("2020-10-28T10:34:21.354+0000"),
"__v" : NumberInt(0),
"image" : null,
"displayOrder" : NumberInt(8),
"parent" : null,
"childs" : [
]
}
{
"_id" : ObjectId("5f9a7971f8443ecbdb787c4a"),
"parent" : null,
"type" : "internal",
"displayOrder" : NumberInt(2),
"url" : "/services",
"title" : {
"en" : "Services",
"ar" : "خدمات"
},
"createdAt" : ISODate("2020-10-29T08:12:33.366+0000"),
"updatedAt" : ISODate("2020-10-29T08:12:33.366+0000"),
"__v" : NumberInt(0),
"image" : null,
"childs" : [
]
}
{
"_id" : ObjectId("5f9a93f3dc3f16e672d9e84e"),
"parent" : null,
"type" : "internal",
"displayOrder" : NumberInt(3),
"url" : "products",
"title" : {
"en" : "Products",
"ar" : "منتجات"
},
"createdAt" : ISODate("2020-10-29T10:05:39.551+0000"),
"updatedAt" : ISODate("2020-10-29T10:05:39.551+0000"),
"__v" : NumberInt(0),
"childs" : [
]
}
I want to achieve my result like below with parent list and sub menus as a child documents. Currently my child array is empty with the above query. Looks like simple thing, but I am finding it hard. Please help.
[
{
"_id": "5f97be37bf401d75ed7de8a8",
"parent": null,
"displayOrder": 0,
"image": null,
"title": {
"en": "Home",
"ar": "الصفحة الرئيسية"
},
"url": "/",
"childs": []
},
{
"_id": "5f97eca04b076b2b8cb5646b",
"type": "internal",
"url": "/about",
"title": {
"en": "About",
"ar": "حول"
},
"createdAt": "2020-10-27T09:47:12.396Z",
"updatedAt": "2020-10-27T09:47:12.396Z",
"__v": 0,
"displayOrder": 1,
"image": null,
"parent": null,
"childs" : [
{
"_id" : "5f9b8459391ab38846326a43",
"parent" : "5f97eca04b076b2b8cb5646b",
"type" : "internal",
"displayOrder" : 0,
"url" : "about",
"title" : {
"en" : "Corporate Overview",
"ar" : "لمحة عن الشركة"
},
"createdAt" : ISODate("2020-10-30T03:11:21.048+0000"),
"updatedAt" : ISODate("2020-10-30T03:11:21.048+0000"),
"__v" : 0,
"image" : null
},
{
"_id" : "5f9b8c0e391ab38846326a45",
"parent" : "5f97eca04b076b2b8cb5646b",
"type" : "internal",
"displayOrder" : 1,
"url" : "certificates",
"title" : {
"en" : "Certificates",
"ar" : "الشهادات"
},
"createdAt" : ISODate("2020-10-30T03:44:14.876+0000"),
"updatedAt" : ISODate("2020-10-30T03:44:14.876+0000"),
"__v" : 0,
"image" : null
},
...
]
},
]