Sort with query params

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

controllers.route1.js

import Ember from 'ember';

export default Ember.Controller.extend({
  queryParams: ['sort'],
  sort: 'desc',
  
  paramsRelay: Ember.inject.service(),
  
  setSort: Ember.on('init', function() {
    // Add ember-query-params here.
    // Basically this sort is brought from localstore.
    // this.set('sort', 'asc');
    let paramsRelay = this.get('paramsRelay');
    
    paramsRelay.setParam('sort', 'asc');
  })
});

controllers.route2.js

import Ember from 'ember';

export default Ember.Controller.extend({
  queryParams: ['sort'],
  sort: 'desc',
  paramsRelay: Ember.inject.service(),
  setSort: Ember.on('init', function() {
    // Add ember-query-params here.
    // Basically this sort is brought from localstore.
    // this.set('sort', 'asc');
    
    let paramsRelay = this.get('paramsRelay');
    
    paramsRelay.setParam('sort', 'desc');
  })
});

router.js

import Ember from 'ember';
import config from './config/environment';

const Router = Ember.Router.extend({
  location: 'none',
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('route1');
  this.route('route2');
});

export default Router;

routes.route1.js

import Ember from 'ember';
import AutosubscribeMixin from 'ember-query-params/mixins/autosubscribe';

export default Ember.Route.extend(AutosubscribeMixin, {
  queryParams: {
    sort: {
      refreshModel: true
    }
  }
});

routes.route2.js

import Ember from 'ember';
import AutosubscribeMixin from 'ember-query-params/mixins/autosubscribe';

export default Ember.Route.extend(AutosubscribeMixin, {
  queryParams: {
    sort: {
      refreshModel: true
    }
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
{{link-to 'route 1' 'route1'}}
<br>
{{link-to 'route 2' 'route2'}}
<br>
{{outlet}}
<br>
<br>

templates.route1.hbs

This is route 1 with {{sort}}

templates.route2.hbs

This is route 2 with {{sort}}

twiddle.json

{
  "version": "0.10.4",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.4.5",
    "ember-data": "2.4.3",
    "ember-template-compiler": "2.4.5"
  },
  "addons": {
    "ember-query-params": "2.1.0"
  }
}