Inserting elements in array mongoose creates Object in NodeJS - arrays

Question

I'm trying to insert documents in an array using Mongoose.
Here's the Schema:
var user = new mongo.Schema({
_id : Number,
devices:[
{
device_id : String,
type : String
}
]})
The update code in NodeJS looks like:
app.put('/user/update',function(req,res){
var obj = req.body;
users.update(
{'user.username' : obj.email},
{
'user.username' : obj.email,
'user.password' : obj.password,
'user.name.first' : obj.name,
'user.department' : obj.department,
'user.year' : obj.year,
'user.college' : obj.college,
'user.contact.phone': obj.contact,
'user.last_login' : obj.last_login,
$push:{
'devices': {
device_id: 'sadasd32u4je3bdjas',
type: 'Windows'
}
}
}, function(err){
if(err)
res.json({"foo": String(err)});
else
res.json({"foo": "Successfully Signed up!"});
});
}
);
But instead it inserts something like:
"devices": [
"[object Object]",
"[object Object]",
"[object Object]",
"[object Object]",
"[object Object]"
],
Where did I go wrong? Thanks again.

Answer 1

Use the findOneAndUpdate() method with the 'upsert' option set to true - this creates the object if it doesn't exist (defaults to false):
var obj = req.body;
var query = {'user.username': obj.email};
var doc = {
$set: {
'user.username': obj.email,
'user.password': obj.password,
'user.name.first': obj.name,
'user.department': obj.department,
'user.year': obj.year,
'user.college': obj.college,
'user.contact.phone': obj.contact,
'user.last_login': obj.last_login
},
$push: {
'devices': {
device_id: 'sadasd32u4je3bdjas',
type: 'Windows'
}
}
};
var options = {upsert: true};
users.findOneAndUpdate(query, doc, options, function(err){
if(err)
res.json({"foo": String(err)});
else
res.json({"foo": "Successfully Signed up!"});
});