Ember.js RouteInfo parent Property

Last Updated : 09 Mar, 2023

Ember.js is an open-source JavaScript framework used for developing large client-side web applications which is based on Model-View-Controller (MVC) architecture. Ember.js is one of the most widely used front-end application frameworks. It is made to speed up development and increase productivity. Currently, it is utilized by a large number of websites, including Square, Discourse, Groupon, Linked In, Live Nation, Twitch, and Chipotle.

The parent Property of the RouteInfo object is a reference to the parent RouteInfo. This property is useful when we want to traverse upward in the hierarchy.

Syntax:

this.router.parent ;

Parameters: It doesn’t take any parameters.

Steps to Install and Run Ember.js:

Step 1: To run the following examples you will need to have an ember project with you. To create one, you will need to install ember-cli first. Write the below code in the terminal:

npm install ember-cli

Step 2: Now you can create the project by typing in the following piece of code:

ember new <project-name> --lang en

To start the server, type:

ember serve

Example 1: Type the following code to generate the route for this example:

ember generate route my-route

app/routes/my-route.js

Javascript

import Route from '@ember/routing/route'; 
import { } from '@ember/array'; 
import EmberObject from '@ember/object'; 
  
export default class FruitsRoute extends Route { 
  
    model() { 
        return 'RouteInfo'
    } 
    setupController(controller, model) { 
        super.setupController(controller, model); 
    } 
} 

app/controllers/my-route.js

Javascript

import Controller from '@ember/controller'; 
import { inject as service } from '@ember/service'; 
import { action } from '@ember/object'; 
  
export default class MyController extends Controller { 
    @service router; 
  
    get ParentName() { 
        var temp = this.router.currentRoute; 
        return temp.parent; 
    } 
} 

app/templates/my-route.hbs

HTML

{{page-title "RouteInfo"}} 
<h1>Welcome to the My Route</h1> 
<b>Parent Name: </b>{{this.ParentName.name}} 
{{outlet}}

Output:

output1

Example 2: In this example, we will use the child route and see all the parent routes. Type the following code to generate the route for this example:

ember generate route first/child

app/routes/first/child.js

Javascript

import Route from '@ember/routing/route'; 
import { inject as service } from '@ember/service'; 
  
export default class FirstChildRoute extends Route { 
  
    model() { 
        return 'RouteInfo'; 
    } 
} 

app/templates/first/child.js

Javascript

import Controller from '@ember/controller'; 
import { inject as service } from '@ember/service'; 
import { action } from '@ember/object'; 
  
export default class MyController extends Controller { 
    @service router; 
  
    get ParentName() { 
        var temp = this.router.currentRoute; 
        let parents = { parent1:  
           temp.parent.name, parent2: temp.parent.parent.name } 
        return parents; 
    } 
} 

app/controllers/first/child.hbs

HTML

{{page-title "RouteInfo"}} 
<div> 
  
    <h1>Welcome to the child Route</h1> 
    {{#each-in this.ParentName as |key values| }} 
    <div> 
        <b>{{key}} : </b>{{values}} 
    </div> 
    {{/each-in}} 
</div> 
{{outlet}}