product is not added to my collection - node.js

Question

In my project I have 2 models: Store and product, basically every store can have a number of products, but each product can be related to 1 store, so to build the models I did this:
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var lojasSchema = new mongoose.Schema({
email: {
type: String,
unique: true,
required: true
},
nome: {
type: String,
required: true,
unique: true
},
descricao: {
type: String,
default: "No description for this store"
},
telefone:{
type:String,
},
password:
{
type: String, required: true
}
,
img: {
data: Buffer, contentType: String
},
imgNome: {
type: String
},
produtos: [
{ type: mongoose.Schema.ObjectId, ref: 'Produto' }
],
});
module.exports = mongoose.model('Loja', lojasSchema);
my product is like this
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var produtoSchema = mongoose.Schema({
nome:{
type:String, required:true
},
stock:{
type:Number
},
descricao:{
type:String
},
categoria:{
type: String, required:true
},
tamanho:{
type: String, required:true
},
data:{
type: Date, default: Date.now
},
preco:{
type: Number,required:true, default: 0
}
});
module.exports = mongoose.model('Produto',produtoSchema);
as you guys can see I have the reference on the store side, basically what I want is every time I add a product I add that product directly to a store(storeID), so to do that I added this to my store side routes:
//adiciona um produto a uma loja especifica
router.post('/:id/produtos',function(req,res){
Loja.findById(req.params.id,function(err,loja){
if(!loja){
return res.status(404).json({Error:"Loja nao encontrada"});
}
if(JSON.stringify(req.body) == "{}")
{
return res.status(400).json({Error:"Your request is empty"});
}
var produto = new Produto(req.body);
loja.produtos.push(produto);
loja.save(function(err){
if(err){
return res.status(500).json({Error:"Server problem"});
}
res.status(200).json({message: "product added"});
});
})
})
I got 2 problems: when I go to my get products route, I get an empty array, I should get there all the products, I think the product is not getting added in the product's model, the second problem is: every time I add a product to my store, and go to see all my stores with the .populate I just can see an id inside the products array, I should see all the product details, what am I doing wrong?:S

Answer 1

Update you mongoose to 4.8.1 because 4.7.6 is buggy with casting Ids.
then go to your lojas.js and require mongoose at the top.
Replace your code with this
router.post('/:id/produtos',function(req,res){
var queryObject = {_id : mongoose.Types.ObjectId(req.params.id)};
Loja.findById(queryObject,function(err,loja){
console.log(err);
if(!loja){
return res.status(404).json({Error:"Loja nao encontrada"});
}
if(JSON.stringify(req.body) == "{}")
{
return res.status(400).json({Error:"Your request is empty"});
}
var produto = new Produto(req.body);
produto.save(function (err) {
if(err){
return res.status(500).json({Error:"Server Problem"})
}
loja.produtos.push(produto._id);
loja.save(function(err){
if(err){
return res.status(500).json({Error:"Server problem"});
}
res.status(200).json({message: "product added"});
});
});
})
})