Update nested array with Express and Mongoose

Question

I have an Express application with Mongoose. I have a model

var AttendeeSchema = new Schema({
 name: String,
 registered: Boolean
});
var EventSchema = new Schema({
 name: String,
 description: String,
 attendees : [AttendeeSchema],
 created: { type: Date, default: Date.now },
 updated: { type: Date, default: Date.now }
});

The code for creating an event is:

router.route('/:event_id')
 .get(function(req, res) {
 Event.findById(req.params.event_id, function(err, event) {
 if (err)
 res.send(err);
 res.json(event);
 });
 })
 .put(function(req, res) {
 Event.findById(req.params.event_id, function(err, event) {
 if (err)
 res.send(err);
 event.name = req.body.name;
 event.description = req.body.description; 
 event.attendees: req.body.attendees;
 event.save(function(err) {
 if (err)
 res.send(err);
 res.json({ message: 'Event updated successfully!' });
 });
 });
 })

The code for updating an event is:

router.route('/:event_id') 
 .put(function(req, res) {
 Event.findById(req.params.event_id, function(err, event) {
 if (err)
 res.send(err);
 event.name = req.body.name;
 event.description = req.body.description; 
 event.attendees: req.body.attendees;
 event.save(function(err) {
 if (err)
 res.send(err);
 res.json({ message: 'Event updated successfully!' });
 });
 });
 })

The problem is that events are being created successfully however when I try to update an event, it only updates the event name and description, but not changes to the attendees name or registered status. I also noticed that the version is not updated from "__v0" to "__v1"

Anyone some hints as to why I cannot update attendee specific information with the above code?

• Andrew Lavers: I assume the code event.attendees: req.body.attendees; is a typo and you meant it to be event.attendees = req.body.attendees;?

Answer 1

It looks like you need a = where you have a : ;)

event.attendees: req.body.attendees;

• wiwa1978: Oh boy, I have been looking at this for over 3 hours. You are fully correct, now it is updating perfectly. Thanks!!!