NodeJS - Mongoose populate trouble - node.js

Question

I am running my app on Node 8.4.0 MongoDB 3.4 and I can't get Mongoose population to work.
I have two models:
var mongoose = require('mongoose');
var Carrier = require('./Carrier.js');
var ValuationFormSchema = new mongoose.Schema({
assignmentnumber: {
type: Number,
default: Number()
},
assignmentpartnumber: {
type: Number,
default: Number()
},
currency: {
type: String,
default: String()
},
email: {
type: String,
default: String()
},
iagree: {
type: Boolean,
default: Boolean()
},
totalValue: {
type: Number,
default: Number()
},
carrier: [{
type: mongoose.Schema.Types.ObjectId,
ref: 'Carrier'
}],
createdAt: {
type: Date,
default: Date.now
},
uuid: {
type: String,
default: String()
},
submitted: {
type: Boolean,
default: false
},
send: {
type: Boolean,
default: false
},
template: String,
surveyvolume: Object,
agreement: Object
});
module.exports = mongoose.model('ValForm', ValuationFormSchema);
var mongoose = require('mongoose');
var Item = require('./Item.js');
var CarrierSchema = new mongoose.Schema({
name: {
type: String,
required: true
},
items: [{
type: mongoose.Schema.Types.ObjectId,
ref: 'Item'
}],
createdAt: {
type: Date,
default: Date.now
}
});
module.exports = mongoose.model('Carrier', CarrierSchema);
and this is my API
app.post('/api/valuationform/populate', function(req, res) {
var email = req.body.email;
ValForm.find({'email' : email},{'submitted' : false})
.populate('Carrier')
.exec(function(error, docs) {
if (!error) {
console.log(JSON.stringify(docs));
res.json(docs);
} else {
res.send('{ error: ' + error + ' }');
}
});
})
Instead of getting the carrier objects i get the id's of the objects.
There are multiple carriers per valforms.
The result looks like this:
{
"_id": "58d24ff9c195a72784108d85",
"assignmentid": 123441,
"__v": 0,
"send": false,
"uuid": "044da37c-8976-4f80-b103-d07c43a97af2",
"createdAt": "2017-03-22T10:20:41.260Z",
"carrier": [
"58d24ff9c195a72784108d86",
"58d24ff9c195a72784108d8d"
],
"totalValue": 40000,
"iagree": false,
"email": "a#b.com",
"currency": "SEK",
"assignmentpartnumber": 0,
"assignmentnumber": 0
}
I want the carriers to be returned as objects not objectid's.
What am i doing wrong here ?

Answer 1

Maybe try in lowercase carrier as defined in your schema.
ValForm.find({ email: email }, { submitted: false }).populate('carrier').exec(...);