Using Mio to retrieve different types of docs in a collection

gistfile1.js

var mio = require('mio');

var Message = mio.Resource.extend({
  attributes: {
    id: {
      primary: true,
    },
    type: {},
    text: {}
  }
}, {
  options: {
    mongo: {
      collection: 'Messages'
    }
  }
})

var Alert = Message.extend({}, {
  urls: {
    get: '/api/alerts'
  }
})

Alert.hook('get', function (query, cb) {
  query.where('type', 'alert')
  Message.get(query.toJSON()).exec(cb)
})

var Notification = Message.extend({}, {
  urls: {
    get: '/api/notification'
  }
})

Notification.hook('get', function (query, cb) {
  query.where('type', 'notification')
  Message.get(query.toJSON()).exec(cb)
})