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update nested array data in mongodb and node js

I want to update status in corder data. i try many time but i cannot update that data. if you know how update that data ??
{
"_id": "63064232cf92b07e37090e0a",
"sname": "Bombay collection ",
"name": "Hussain Khan",
"costomer": [
{
"cname": "Basan",
"cphone": 9863521480,
"_id": "632eeff2a9b88eb59d0210f0",
"corder": [
{
"clothType": "Shirt",
"date": "2022-10-21",
"status": "false",
"_id": "635283363edde6a0e9e92dc0"
},
]
}
]
}

You can use $[<identifier>]. For example:
db.collection.update(
{},
{$set: {"costomer.$[elemA].corder.$[elemB].status": newStatus}},
{arrayFilters: [
{"elemA._id": costomerId},
{"elemB._id": corderId}
]}
)
See how it works on the playground example

Within an array, remove an item from an array within each object that item appears in

My mongodb document(table) 'Org_unit' looks like this:
{
"_id": ObjectId("0894f016e6e2e073c19e051")
"allowedusers": [
"admin",
"Fred",
"Bob",
"Layneh"
],
"name": "News management",
"divisions": [
{
"allowedusers": [
"admin",
"Larry",
"Bob",
"Harry",
"Fred"
],
"_id": ObjectId("60894f016e6e2e073c19e052"),
"name": "Finances",
"credentials": [
{
"_id": ObjectId("94f0944f016e6e2e2342cc"),
"name": "FNB - FA",
"userName": "example#email.com",
"password": "examplePassword!##"
}
]
},
{
"allowedusers": [
"admin",
"Larry",
"Bob",
"Harry",
"Fred"
],
"_id": ObjectId("60894f016e6e2e073c19e052"),
"name": "Development",
"credentials": [
{
"_id": ObjectId("94f0944f016e6e2e2342cc"),
"name": "FNB - DEV",
"userName": "example#email.com",
"password": "examplePassword!##"
}
]
}
],
"__v": 11
}
This is my fist post here, hello! Ok so I have been at this for a few days now and I just cant get this right.
What I am trying to do:
Within the "divisions" array, I want to remove "Fred" from the "allowedusers" array in each object "division" that he appears in.
What I have tried
I am still very new, about a week in.
I have tried many times, but the closest I have gotten was this:
Org_unit.updateMany({name: "News management"}, { $pull: {'divisions': {'allowedusers': "Fred"}}},{ multi: true })
^^ This deleted the entire division if he appeared in its "allowedusers" array
Any guidance with this is massively appreciated
Thank you in advance.
PS: (Since this is my first question posted, please let me know how I can improve my questions in the future!)

Demo - https://mongoplayground.net/p/kR_NmQNO52y
Use $[]
The all positional operator $[] indicates that the update operator should modify all elements in the specified array field.
db.collection.update({
name: "News management"
},
{
$pull: {
"divisions.$[].allowedusers": "Fred"
}
})

How to query two collections that have a "one-to-many" relationship in MongoDB?

We have two collections: "houses" and "events". Each document in the houses collection contains an "events" field with an array of id's that refer to events (a "one-to-many" relationship). The array can be empty.
"House" schema:
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const HouseSchema = new Schema({
name: String,
district: String,
locality: String,
date: {
type: Date,
default: Date.now
},
events: [{
type: mongoose.Schema.Types.ObjectId,
ref: 'Event'
}]
});
module.exports = mongoose.model('House', HouseSchema);
"Event" schema:
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const EventSchema = new Schema({
event: String,
details: String,
date: {
type: Date,
default: Date.now
},
house: {
type: mongoose.Schema.Types.ObjectId,
ref: 'House'
}
});
module.exports = mongoose.model('Event', EventSchema);
I need to query both "houses" and "events" and find those "houses" with referred "events" that meet all the criteria. I will give several options for queries.
Query with parameters only from "houses". Let's say there are two docs in the "houses" collection that satisfy the condition {"locality": "Facebook"}. The result should be like this:
[
{
"_id": "601bae8e26ed00591d571dbe",
"name": "Facebook testing department",
"district": "Los-Angeles",
"locality": "Facebook",
"events": [
{
"_id": "601bae8e26ed00591d571dbf",
"event": "Testing",
"details": "Testing software for production",
"date": "2020-07-31T21:00:00.000Z"
}
]
},
{
"_id": "601bae8e26ed00591d571dbc",
"name": "Facebook office",
"district": "Los-Angeles",
"locality": "Facebook",
"events": [
{
"_id": "601bae8e26ed00591d571dbd",
"event": "Conference",
"details": "Developers conference about 12345",
"date": "2020-07-31T21:00:00.000Z"
}
]
},
];
Query with parameters only for "events". Let's say there are two records in the "events" collection that satisfy the condition {"event": "Conference"}. The result is:
[
{
"_id": "601bae8e26ed00591d571dbc",
"name": "Facebook office",
"district": "Los-Angeles",
"locality": "Facebook",
"events": [
{
"_id": "601bae8e26ed00591d571dbd",
"event": "Conference",
"details": "Developers conference about 12345",
"date": "2020-07-31T21:00:00.000Z"
}
]
},
{
"_id": "601bae8e26ed00591d571dba",
"name": "Oxford",
"district": "London",
"locality": "Oxford",
"events": [
{
"_id": "601bae8e26ed00591d571dbb",
"event": "Conference",
"details": "About something",
"date": "2020-07-31T21:00:00.000Z"
}
]
},
];
Query with parameters for both "houses" and "events". If the criteria of our query is {"locality": "Facebook", "event": "Conference"}, then the result should be like this:
[
{
"_id": "601bae8e26ed00591d571dbc",
"name": "Facebook office",
"district": "Los-Angeles",
"locality": "Facebook",
"events": [
{
"_id": "601bae8e26ed00591d571dbd",
"event": "Conference",
"details": "Developers conference about 12345",
"date": "2020-07-31T21:00:00.000Z"
}
]
},
];
I have faced similar situations where it is necessary to make queries more complex than usual. But here we need to make a query - depending on the parameters - for one or two collections, and as a result, we should get "houses" with nested "events" that correspond the query parameters. I don't know MongoDB aggregation that well, would appreciate any help.

Declare your inputs
let locality = req.body.locality;
let event = req.body.event;
Initialize aggregation pipeline (replace HousesModel to your reql model name)
let p = HousesModel.aggregate();
Check condition for locality
if (locality && locality.trim()) p.match({ locality: locality });
$lookup with pipeline,
declare events array into let
match events condition in expression
check condition if events search is available then put condition
p.lookup({
from: "events", // replace your actual collection name if this is wrong
let: { events: "$events" },
pipeline: [
{
$match: {
$and: [
{ $expr: { $in: ["$_id", "$$events"] } },
(event && event.trim() ? { event: event } : {})
]
}
}
],
as: "events"
});
make sure events is not empty
p.match({ events: { $ne: [] } });
execute above pipeline
let result = await p.exec();
Playground
Combine above code in sequence and test.

How do I made a relation in two entities if one entity has arrays data

I have two tables name users and requests in MYSQL database here is json example of each sequelize model which I need to map to my models:
user:
{
"username": "",
"profileImage": "",
"deleted": false,
"active": false,
"id": 9,
"uuid": "9a6d5a15-8e11-42aa-ac56-0bec272c9287",
"firstName": "M",
"lastName": "Aslam",
"email": "hang#outlook.com",
"isGuest": false
}
and request
{
"id": 5,
"requestUUID": "ab966593-95e5-4fd8-b433-01b116e3edee",
"socialLinks": [
{
"url": "https://synavos.com",
"socialLinks": [
{
"platform": "facebook",
"handle": "https://www.facebook.com/synavos/"
},
{
"platform": "instagram",
"handle": "https://www.instagram.com/synavosbusiness/"
},
{
"platform": "youtube",
"handle": "https://www.youtube.com/channel/UCrZxxAV_OiRb9N3wIe3N94w"
}
]
},
{
"url": "https://www.confiz.com/",
"socialLinks": [
{
"platform": "facebook",
"handle": "http://www.facebook.com/ConfizCareers"
},
{
"platform": "youtube",
"handle": "https://www.youtube.com/channel/UCG64lwoDIbwtkZK8E_s140A"
}
]
}
]
}
while a user can have many requests while a request belongs to one user.

if the relation is one to mant (user can have many requests while a request belongs to one user) you can add to request a user_id field. then you can search all request of the user by SELECT * FROM requests where user_id = ?, [user.id], and if you want find the user of a specific request use SELECT ALL FROM users WHERE id = ?, [request.user_id]

Return array of data instead of Dictionary - Sequelize

I need post data like array, but I send it always like this:
{
"books": [
{
"id": 19,
"name": "Král Lávra",
"author": "Karel Havlíček Borovský",
"yearOfRelease": "1920",
"price": "120",
"SubjectId": 1,
"UserId": 2,
"SchoolId": 1
},
]
}
I want show result like this:
[
{
"id": 19,
"name": "Král Lávra",
"author": "Karel Havlíček Borovský",
"yearOfRelease": "1920",
"price": "120",
"SubjectId": 1,
"UserId": 2,
"SchoolId": 1
},
]
I use sequelize to connection between database MySQL. This is my code for findAll books:
let books = await ctx.db.Book.findAll({
where: {
UserId: id
},
})
Then I only post to
ctx.body= {
books
}
Thanks for your response.