Deprecation Guide for Transition State Removal

The Transition object is a public interface that actually exposed internal state used by router.js to perform routing. Accessing state, queryParams or params on the Transition has been removed. If you need access to information about the routes, you are probably better served injecting the router service as it exposes a publically supported version of the RouteInfos. You can access them in the following ways:

import Route from '@ember/routing/route';
import { inject as service } from '@ember/service';

export default Route.extend({
  router: service(),
  init() {
    this._super(...arguments);
    this.router.on('routeWillChange', transition => {
      let { to: toRouteInfo, from: fromRouteInfo } = transition;
      if (fromRouteInfo) {
        console.log(`Transitioning from -> ${fromRouteInfo.name}`);
        console.log(`From QPs: ${JSON.stringify(fromRouteInfo.queryParams)}`);
        console.log(`From Params: ${JSON.stringify(fromRouteInfo.params)}`);
        console.log(`From ParamNames: ${fromRouteInfo.paramNames.join(', ')}`);
      }

      if (toRouteInfo) {
        console.log(`to -> ${toRouteInfo.name}`);
        console.log(`To QPs: ${JSON.stringify(toRouteInfo.queryParams)}`);
        console.log(`To Params: ${JSON.stringify(toRouteInfo.params)}`);
        console.log(`To ParamNames: ${toRouteInfo.paramNames.join(', ')}`);
      }
    });

    this.router.on('routeDidChange', transition => {
      let { to: toRouteInfo, from: fromRouteInfo } = transition;
      if (fromRouteInfo) {
        console.log(`Transitioned from -> ${fromRouteInfo.name}`);
        console.log(`From QPs: ${JSON.stringify(fromRouteInfo.queryParams)}`);
        console.log(`From Params: ${JSON.stringify(fromRouteInfo.params)}`);
        console.log(`From ParamNames: ${fromRouteInfo.paramNames.join(', ')}`);
      }

      if (toRouteInfo) {
        console.log(`to -> ${toRouteInfo.name}`);
        console.log(`To QPs: ${JSON.stringify(toRouteInfo.queryParams)}`);
        console.log(`To Params: ${JSON.stringify(toRouteInfo.params)}`);
        console.log(`To ParamNames: ${toRouteInfo.paramNames.join(', ')}`);
      }
    });
  }

  actions: {
    sendAnalytics() {
      let routeInfo = this.router.currentRoute;
      ga.send('pageView', {
        pageName: routeInfo.name,
        metaData: {
          queryParams: routeInfo.queryParams,
          params: routeInfo.params,
        }
      });
    }
  }
});