Analyzing modifications among controllers in AngularJS

My angular application has two controllers. Here is a simplified version of the code snippet:

var app = angular.module('walkerApp', ['firebase']);

app.controller('AuthenticationController', function($scope) {
    function login(user) {
      ...
    }
});

app.controller('StepsDataController', function($scope) {

});

The StepsDataController is responsible for fetching data from a firebase backend, while the AuthenticationController manages user authentication. Whenever there is a change in the current user (such as through the login or register methods of the AuthenticationController), the StepsDataController should rebind to a specific set of data associated with that particular user.

I am looking for a way to achieve this functionality in Angular. It seems like I would need some kind of observer implementation, but I am unsure about the exact mechanism to use.

Answer №1

If you're working with controllers in AngularJS, you have options like using $scope.$broadcast or $scope.$emit from the subject controller, and listening with $scope.$on on the observer controller. Check out the documentation for more details.

It's important to consider the scope hierarchy of your controllers when deciding how to communicate between them. In some cases, you may even need to utilize $rootScope.$broadcast.

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