Calling a controllers method in another controller Ember

Question

I am using Ember's Need Api to call a method of a controller in another controller. I am able to get the instance of the controller but when I am calling it method it returns me this error TypeError: Object [object Object] has no method.

This is how I am calling it:

Cards.CardsIndexController = Ember.Controller.extend({
    needs: 'account_info',
     actions: {
        accountInfoStart:function(){
               console.log(this.get('controllers.account_info').test()); // error here


        }
    }
});

This is the controller whose function I want to call

Cards.AccountInfoController = Ember.Controller.extend({


    actions:{

        test: function(){

            alert(1);
        }

    }

});

How can I solve it?

Answer 1

test is not technically a method, but an action or event. Use the send method instead:

this.get('controllers.account_info').send('test', arg1, arg2);

Answer 2

As per Ember documentation; create a property that lazily looks up another controller in the container. This can only be used when defining another controller.

legacy ember application example:

App.PostController = Ember.Controller.extend({
  accountInfo: Ember.inject.controller()

  this.get('accountInfo').send('test')
});

modern ember application example:

// in an ember app created with ember-cli
// below snippet would be the app/controllers/post.js file
import Ember from 'ember';
export default Ember.Controller.extend({
  appController: Ember.inject.controller('application')
});

You can find more documentation about Ember.inject here

Answer 3

From the Updated Ember Documentation :

import { inject } from '@ember/controller';
export default Ember.Controller.extend({
  appController: inject('application')
});

For further reference, you can find out by this link https://guides.emberjs.com/release/applications/dependency-injection/#toc_ad-hoc-injections