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MongoDB - update specific array element by id [duplicate]

This question already has answers here:
How to Update Multiple Array Elements in mongodb
(16 answers)
Closed 3 days ago.
Ive been trying these since yesterday but I couldnt make it.
I have 2 different Schemas, the User Schema and the Vital Signs Schema. The Vital Signs Schema is inside the userSchema as an array. What i need to do is to edit an specific vitalSigns object with an unique Id
Here is a postman example of the info i need to update
const userSchema = new mongoose.Schema({
email:{type: String, required: true},
password:[{type: String, required: true}],
confirmPassword:[{type: String, required: true}],
personalData: personalDataSchema,
vitalSigns: [vitalSignsSchema],
})
const vitalSignsSchema = new mongoose.Schema({
systolic: { type: 'Number', required: false },
diastolic: { type: 'Number', required: false },
temperature: { type: 'Number', required: false },
pulse: { type: 'Number', required: false },
rate: { type: 'Number', required: false },
blood: { type: 'Number', required: false },
date: { type: 'Date', required: false },
})
My route is catching both userId and vitalSigns because i tried to make it work with a lot of ways but i couldn't
Router.post('/user/:userId/vitalSignsEdit/:vitalId', async (req, res) => {
userServices.editVitalSigns(req.params.userId,req.params.vitalId, req.body)
})
Here is one example of a way that I tried to use to make it work but instead of updating the specific vitalSigns Id, it created another object of vitalSigns with the same Id that i tried to change.
User.findById(userId)
.then( user => {
if(user) {
if(user.vitalSigns.find( e => e._id === data._id)) {
User.updateOne({_id: userId}, { vitalSigns: [...user.vitalSigns, data] })
.then(e => console.log(e), i => console.log(i))
}
}
})
Hope someone could help me with these.

You could use $push
User.updateOne({_id: userId}, { $push: { vitalSigns: data } })

Use $ to access the array element matched.
db.collection.update({
"vitalSigns._id": "vs1"
},
{
$set: {
"vitalSigns.$.modified": true
}
})
Mongo Playground

change values of nested objects by id with mongoose

I'm new to MongoDB, and I'm trying to do a very simple task, but however I can't get it right.
What I want is to change the process status but I tried "FindAndUpdate", "UpdateOne" and "FindByIdAndUpdate" but it won't work.
Maybe it has to do with my Schema. Should I create a new Schema for the Process?
My Database entry inside a MongoDB Collection:
_id: 622c98cfc872bcb2578b97a5
username:"foo"
__v:0
process:Array
0: Object
processname:"bar"
process_status:"stopped"
_id: 6230c1a401c66fc025d3cb88
My current Schema:
const User = new mongoose.Schema(
{
username: { type: String, required: true },
process: [
{
processname: {
type: String,
},
process_status: {
type: String,
},
},
],
},
{ collection: "user-data" }
);
My current code:
const startstopprocess = await User.findByIdAndUpdate(
{ _id: "6230c1a401c66fc025d3cb88" },
{ process_status: "started" }
).then(function (error, result) {
console.log(error);
console.log(result);
});

You can use positional operator $ in this way:
db.collection.update({
"process._id": "6230c1a401c66fc025d3cb88"
},
{
"$set": {
"process.$.process_status": "started"
}
})
Note how using positional operator you can say mongo "from the object you have found in find stage, update the process_status variable to started"
Example here

MongoDB / NodeJS can't push to array

I am trying to add tags to existing tags in a MongoDB collection with this Schema:
const workSchema = new mongoose.Schema({
title: {
type: String,
required: "Tile can't be blank"
},
description: {
type: String
},
imageURL: {
type: String,
unique: true
},
workURL:{
type: String,
unique: true
},
tags:{
type:Array
},
createdDate: {
type: Date,
default: Date.now
}
});
const Work = mongoose.model('Work', workSchema);
module.exports = Work;
I made an API that makes a PUT request to "/api/work/:workId/tags"
exports.updateTags = (req, res) =>{
try{
const newTags = req.body.tags.split(',');
newTags.forEach(tag => {
db.Work.update(
{"_id": req.params.workId},
{
$push:{
tags: tag
}
}
)
})
res.status(200).send({message : "tags updated"})
}
catch(error){
res.status(400).send(error)
}
}
request.body:
{
tags:"a,b,c"
}
The problem is that the array won't update with the new tag values
I searched for other ways to update in the docs and on the web but I didn't find any solutions.

You haven't defined _id in your workSchema so the type of _id would be ObjectId
But req.params.workId is probably a String, so querying an ObjectId with a String won't work.
So you should convert req.params.workId to ObjectId using mongoose.Types.ObjectId
{ "_id": mongoose.Types.ObjectId(req.params.workId) }
But you can improve your code a bit more by using .findByIdAndUpdate and $each operator
.findByIdAndUpdate will automatically convert your _id to ObjectId
You can use $each to $push multiple array elements at the same time without using .forEach
Work.findByIdAndUpdate(req.params.workId, {
$push: { "tags": { $each: newTags } }
})

How do I find if an Id is present in the array of team members (which stores user ids)?

I have this model of workspace schema in my node js project(model is displayed below)
After the user logs into my application I want to display the information of a workspace only if it is created by him or he is a team member of that workspace
I am able to find the workspaces created by the user by the following query
Workspace.find({creator:req.user._id},function(err,workspaces){
res.render('home',{
wokspacses:workspaces
});
});
similarly, I also want the workspaces in which the user is the team member
Workspace.find({creator:req.user._id},function(err,workspaces){
Workspace.find({team_member:"WHAT SHOULD I WRITE HERE"},function(err,workspaces2){
res.render('home',{
wokspacses:workspaces
wokspacses2:workspaces2
});
});
Since team_members is an array simply passing the user id is not yielding the result and workspaces2 remains empty
Thank you for your time !!
const mongoose = require('mongoose');
const workspaceSchema = mongoose.Schema({
name:{
type:String,
required:true
},
date: {
type: Date,
required: true
},
creator:{
type: Object,
ref: 'User',
required: true
},
team_member: [{ type: Object, ref: 'User' }]
});
module.exports = mongoose.model('Workspace',workspaceSchema);

Use the $in Operator.
const mongoose = require("mongoose")
const Schema = mongoose.Schema
mongoose.connect('mongodb://localhost/stackoverflow', {useNewUrlParser: true});
const workspaceSchema = new Schema({
name:{
type:String,
required:true
},
date: {
type: Date,
required: true
},
creator:{
type: Object,
ref: 'User',
required: true
},
team_member: [{ type: Object, ref: 'User' }]
});
const WorkspaceModel = mongoose.model('Workspace',workspaceSchema);
const sessionUserId = "5d330f3de87ec83f95504c44" //i.e. req.user._id;
WorkspaceModel.find({
$or:[
{ creator: sessionUserId },
{
team_member: {
$in: [sessionUserId]
}
}
]
}).exec((err, result) => {
console.log("result", result)
})

Asynchronous Programming in node js to pass constants/predefined mandatory values through mongoose model

I have multiple questions, please go through my code.
1) how to pass constants/predefined mandatory values through model?
For eg. I have some fields which user must be passing the values and some constants to pass on inside the kafkaSchema.config[ ] and also livySchema.args[ ]. The code i want to pass through is in second question on the same question thread.
const mongoose = require('mongoose');
const livy_schema = mongoose.Schema({
file: { type: String, required: true },
name: { type: String, required: true },
className: { type: String, required: true },
args: [{ type: mongoose.Schema.Types.Mixed, required: true }] //here i have constants to pass on to
});
const kafka_schema = mongoose.Schema({
_id: mongoose.Schema.Types.ObjectId,
name: { type: String, required: true, unique: false },
config: { type: mongoose.Schema.Types.Mixed, required: true } //here i have constants to pass on to
});
const enrichedEventSchema = mongoose.Schema({
_id: mongoose.Schema.Types.ObjectId,
projectId: { type: mongoose.Schema.Types.ObjectId, ref: 'Project', required: true },
name: { type: String, required: true, unique: true },
description: { type: String, required: false },
type: { type: String, enum: ["Enriched"], required: true },
format: { type: String, enum: ["JSON", "DELIMITED", "FixedWidth", "LOG"], required: true },
kafka: [kafka_schema],
livy: [livy_schema] // how to make this schema required:true?
});
module.exports = mongoose.model('EnrichedEvent', enrichedEventSchema);
2) how to make this code to run asynchronously, Right now its working synchronously. For example, Its able to save the eventdata in event collection in database, then its updating the project collection, then calling axios.post method to call my livy server and kafka server in order. What i want to do is save the eventdata in event collection in database, then update the project collection (synchronously), meanwhile I want to call my livy and kafka server at the same time (Asynchronously).
router.post("/:projectId/events/enriched", (req, res, next) => {
const enrichedEvent = new EnrichedEvent({
_id: mongoose.Types.ObjectId(),
name: req.body.name,
projectId: req.params.projectId, //taking from url
description: req.body.description,
type: req.body.type,
format: req.body.format,
kafka: req.body.kafka,
livy: req.body.livy
});
enrichedEvent.save()
.then(result => {
console.log(result);
res.status(201).json({
message: "Event stored",
createdEvent: {
_id: result._id,
projectId: result.projectId,
name: result.name,
description: result.description,
type: result.type,
kafka: result.kafka,
livy: result.livy
}
});
Project.findOneAndUpdate({ _id: result.projectId },
{ $push: { enrichedEvents: result._id } })
axios.post("http://52.xxx.xxx.199:8998/batches", result.livy)
.then(function (response) {
console.log(response);
})
.then(axios.get("http://52.xxx.xxx.199:8998/batches/"), function (res) {
console.log(res);
})
axios.post("http://52.xxx.xxx.199:8083/connectors", result.kafka)
.then(function (response) {
console.log(response);
})
.catch(err => {
console.log(err);
res.status(500).json({
error: err
});
});
});
});
Question may seem bit lengthy, but valid question to ask on SO. Please guide me to right direction.

1)
const enrichedEventSchema = mongoose.Schema({
// ...
livy: { type: [livy_schema], required: true }
});
2)
return enrichedEvent.save().
then(result => {
// ...
return Project.findOneAndUpdate(/*...*/);
}).
then(() => {
// ...
return Promise.all([axios.post(/*...*/), axios.post(/*...*/]);
});

Hey try the following:
1) for saving user's entered configurations and also having default constants. You could use mongoose pre save hook.
https://mongoosejs.com/docs/middleware.html#pre
livy_schema.pre('save', function(next) {
this.args = { ...this.args, ...CONSTANTS }; //I'm use es6's spread operator
next();
});
kafka_schema.pre('save', function(next) {
this.config = { ...this.config, ...CONSTANTS }; //I'm use es6's spread operator
next();
});
2) For second question: try following:
axios.all([
axios.post("http://52.221.178.199:8998/batches", result.livy),
axios.post("http://52.221.178.199:8083/connectors", result.kafka)
]);