MongoDB : Nested array update issue - node.js

Question

I am using MEAN stack to display the following array in a grid.
Nested array:
{
"_id":"1",
"appDomain":[
{
"appDomainName":"XYZ",
"dashboard":[
{
"envName":"UAT",
"envDetails":[
{
"hostnme":"ABC",
"ip":"sdsdsdsd",
"cpu":"-------",
"memory":"-------",
"disk":"-------",
"downtime":"sdsdsdsd",
"version":"dsdsdsd",
"hostDetails":[
{
"hostHdrName":"tomcat",
"hostDetails":[
{
"hostname":"FLT",
"status":"UP",
"path":"dfdf",
"host":"sdsdsd",
"port":"1112"
}
]
}
]
}
]
}
]
},
{
"appDomainName":"ABC",
"dashboard":[
{
"envName":"UAT",
"envDetails":[
{
"hostnme":"ABC",
"ip":"sdsdsdsd",
"cpu":"-------",
"memory":"-------",
"disk":"-------",
"downtime":"sdsdsdsd",
"version":"dsdsdsd",
"hostDetails":[
{
"hostHdrName":"tomcat",
"hostDetails":[
{
"hostname":"FLT",
"status":"UP",
"path":"dfdf",
"host":"dfdfdf",
"port":"1112"
},
{
"hostname":"SHP",
"status":"DOWN",
"path":"dfdfdf",
"host":"fgfgfg",
"port":"1112"
}
]
}
]
}
]
}
]
}
]
}
Mangoose update: I am using express.js to add/update and delete the entry in MangoDB. I am facing the issue in update in nested array. Please see below the code for update the nested array.
router.post('/appDomain/update/:appDomainName/:envName', function(req, res, next) {
AppDomain.findOne({}, {_id: 0, appDomain: {$elemMatch: {appDomainName: req.params.appDomainName,}}}, function (err, appDomain) {
if(appDomain.appDomain[0].dashboard[0].envName == req.params.envName )
appDomain.appDomain[0].dashboard[0].envDetails.push({})
appDomain.save(function (err) {
if(err) {
console.error('ERROR!');
}
});
res.json(appDomain);
});
})
However, it is not updating. It would be great if anyone can help me out..
AppDomainModel Schema
var Schema = mongoose.Schema;
var serverDetails = new Schema({
hostname: String,
ip: String,
status: String,
path: String,
host: String,
port: String
});
var hostDetail = new Schema({
hostHdrName: String,
hostDetails: [serverDetails]
});
var keyValue = new Schema({
keyHdrName: String,
keyValueData: [{key: String, value:String}]
});
var envSchema = new Schema({
hostnme: String,
ip: String,
cpu: String,
memory: String,
disk: String,
downtime: String,
version: String,
hostDetails: [hostDetail],
keyValues: [keyValue],
activities:{
recent: [keyValue],
planned: [keyValue]
}
});
var dashboardSchema = new Schema({
envName: String,
envDetails: [envSchema]
});
var appDomainSchema = new Schema({
_id:String,
appDomain:[{
appDomainName: {type:String,index: { unique: true }},
dashboard: [dashboardSchema]
}]
});
var AppDomain = mongoose.model('AppDomain', appDomainSchema);
var Dashboard = mongoose.model('Dashboard', dashboardSchema);
var EnvSchema = mongoose.model('EnvSchema', envSchema);
After updating.I am using the following function to check the value .. However the updated one is not available in the DB.
router.get('/app/domain/get/:appDomainName', function(req, res, next) {
AppDomain.find({}, {_id: 0, appDomain: {$elemMatch: {appDomainName: req.params.appDomainName,}}},function (err, appDomain) {
res.json(appDomain);
});
});

Answer 1

After a long struggle, I figured it out . See below the answer.
var data2 = {};
AppDomain.update(
{_id:1,'appDomain.appDomainName': req.params.appDomainName,'dashboard.$.envName':{$nin:[req.params.envName]}},
{$push: {'appDomain.$.dashboard.0.envDetails':{'envDetails':[data2]}}},
function(err, model) {
console.log(err);
}
);

Answer 2

I suspect your changes are actually being saved successfully, but you're returning the response too soon. Try this:
appDomain.save(function (err, savedAppDomain) {
if(err) {
console.error('ERROR!');
next(err);
return;
}
res.json(savedAppDomain):
});
// Removed:
//res.json(appDomain);
//});