How to auto populate nested associations of sails blueprint for url /model/<id>/association - sails.js

Question

I have two models Users and Chat with many to many association.
User.js
module.exports = {
attributes: {
name: {
type : 'string'
,required : true
},
email:{
type : 'string'
,email : true
,required: true
,unique : true
},
enpassword : {
type: 'string'
},
online : {
type: 'boolean',
defaultsTo: false
},
socketid: {
type: 'string'
},
chats : {
collection: 'chat',
via: 'users',
dominant: true
}
};
Chat.js
module.exports = {
attributes: {
messages : {
collection: 'message',
via : 'chat',
dominant : true
},
users : {
collection: 'user',
via : 'chats'
},
}
};
When I call sails blueprint /user/1/chats I am getting list of chats but users association of each chat is not populated.
How can I achieve this from Sails queries ?

Answer 1

Great question. Here is a really easy way to do this.
First, require the following module.
var nestedPop = require('nested-pop');
Next, run your query.
getPopulatedUsers = function(req, res) {
User.find()
.populate('chats')
.then(function(users) {
return nestedPop(users, {
chats: [
'messages',
'users' // I actually wouldn't recommend populating this since you already have the users
]
}).then(function(users) {
console.log(users);
res.json(users);
});
});
}
More docs on this can be found at the following link.
https://www.npmjs.com/package/nested-pop