Insertion issue in Json Array object mongodb with Nodejs? - json

Question

I am new to mongodb , I have below Json structure in mongodb ,
{
"_id" : ObjectId("59d62452a164b51d64b714c2"),
"folderName" : "Avinash 1234",
"tag" : "search",
"ismainFolder" : true,
"innerFolder" : [
{
"ismainFolder" : false,
"foldername" : "Test12",
"_id" : ObjectId("59d72246e66adf2cfcfdd6e6")
}
],
"innerFiles" : [
{
"filelocation" : "",
"isFolder" : false,
"filename" : "Penguins.jpg",
"_id" : ObjectId("59d7223de66adf2cfcfdd6e5")
},
{
"filelocation" : "",
"isFolder" : false,
"filename" : "Desert.jpg",
"_id" : ObjectId("59d72ff4e66adf2cfcfdd6ec")
},
{
"filelocation" : "",
"isFolder" : false,
"filename" : "Hydrangeas.jpg",
"_id" : ObjectId("59d731dfe66adf2cfcfdd6ed")
},
{
"filelocation" : "",
"isFolder" : false,
"filename" : "Chrysanthemum.jpg",
"_id" : ObjectId("59d73252e66adf2cfcfdd6ee")
}
],
"__v" : 0
}
For innerFiles array i need to insert the Tag field depending on the id ("_id" : ObjectId("59d7223de66adf2cfcfdd6e5")) . I used following nodeJs code but it adding as a new object . Please give me the solution .
exports.addTagForSearch = function (req, res, next) {
var tagDetails = req.body.tagDetails;
console.log("tagDetails", tagDetails);
console.log("tagDetails", tagDetails._id);
Repository.find({ _id: tagDetails._id, }, { innerFiles: { $elemMatch: { _id: tagDetails._id } } },function (err, response) {
$push: {
innerFiles: {
"tagName": tagDetails.tagname,
}
//"filelocation": tagDetails.filelocation
}
}, { upsert: true, new: true }, function (err, post) {
if (err) return next(err);
return res.status(200).json("success");
});
}
but above code inserting as a new object , Please give me solution please .

Answer 1

First I need to create a database for that I had a config.js file . Here is the code
module.exports = {
'secretKey': '12345-67890-09876-54321',
'mongoUrl' : 'mongodb://localhost:27017/innerFiles'
}
Next create a models folder and keep this order.js in it
// grab the things we need
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var folderSchema=new Schema({
ismainFolder:{
type:String,
//required:true,
default:''
},
foldername:{
type:String,
//required:true,
default:''
}
});
var innerSchema=new Schema({
filelocation:{
type:String,
//required:true,
default:''
},
isFolder:{
type:String,
//required:true,
default:''
},
filename:{
type:String,
//required:true,
default:''
}
});
var main= new Schema({
folderName:{type:String},
tag:{type:String},
ismainFolder:{type:String},
innerFolder:[folderSchema],
innerFiles:[innerSchema]
},{ strict: false });
var Order= mongoose.model('main', main);
// make this available to our Node applications
module.exports = Order;
Next create a routes folder and keep this orderRouter.js file in it
var express = require('express');
var bodyParser = require('body-parser');
var mongoose = require('mongoose');
var Orders = require('../models/orders');
var app = express();
var orderRouter = express.Router();
orderRouter.use(bodyParser.json());
orderRouter.get('/get',function (req, res, next) {
Orders.find({}, function (err, order) {
if (err) throw err;
res.json(order);
});
})
orderRouter.post('/post',function (req, res, next) {
Orders.create(req.body, function (err, order) {
if (err) {
res.status(400).send('Bad request');
}
else{
console.log('order created!');
var id = order._id;
res.writeHead(200, {
'Content-Type': 'text/plain'
});
res.end('Added the order with id: ' + id);
}
});
})
orderRouter.get('/:orderId',function (req, res, next) {
Orders.findById(req.params.orderId, function (err, order) {
if (err) {
res.status(404).send('OrderId not found');
}
else{
res.json(order);
}
});
})
orderRouter.put('/addingField',function(req,res){
//var tagDetails = req.body;
console.log("tagDetails:"+req.body.subId);
console.log("tagname:"+req.body.tagname);
Orders.update(
{_id:req.body.mainId,'innerFiles._id':req.body.subId},
{$set:{'innerFiles.$.tagName':req.body.tagname}},
function (err, article) {
if (err) return console.log(err);
res.json(article);
});
});
app.use('/orders',orderRouter);
app.use(express.static(__dirname+'/public'));
module.exports = orderRouter;
Next create a app.js file this is the server code
var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var mongoose = require('mongoose');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var config = require('./config');
mongoose.connect(config.mongoUrl);
var db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', function () {
// we're connected!
console.log("Connected correctly to server");
});
var orderRouter = require('./routes/orderRouter');
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
// passport config
app.use(passport.initialize());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/orders',orderRouter);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
// error handlers
// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.json({
message: err.message,
error: err
});
});
}
// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.json({
message: err.message,
error: {}
});
});
app.listen(3000,function(){
console.log("Server listening on 3000");
});
module.exports = app;
And run the server as node app.js.You can post data using this api http://localhost:3000/orders/post you need to use post method.Here is the sample input example for posting
{
"folderName" : "Avinash 1234",
"tag" : "search",
"ismainFolder" : "true",
"innerFolder" : [
{
"ismainFolder" : "false",
"foldername" : "Test12"
}
],
"innerFiles" : [
{
"filelocation" : "a",
"isFolder" : "false",
"filename" : "Penguins.jpg"
},
{
"filelocation" : "b",
"isFolder" : "false",
"filename" : "Desert.jpg"
},
{
"filelocation" : "c",
"isFolder" : "false",
"filename" : "Hydrangeas.jpg"
},
{
"filelocation" : "d",
"isFolder" : "false",
"filename" : "Chrysanthemum.jpg"
}
]
}
and here is the image for it
After posting data check that your data is stored in db or not.Here whatever the id I am giving in response is mainId . For that run this api http://localhost:3000/orders/get use get method for this. Collect the sub document id which is subId in our code.Sample Image for getting
After this here is the task of adding a new field to sub document for that use this api http://localhost:3000/orders/addingField and you need to use put method for this.Here is the input example
{
"mainId":"59dca6aff968a98478aaaa96",
"subId":"59dca6aff968a98478aaaa9a",
"tagname":"hello"
}
And Image for it
After completion of all these steps check into db.Here is the sample image for
it
That's it. Hope it helps.