Utilizing AngularJS: Triggering a controller function from a directive

I am currently working on a project with a model named 'user', which includes a controller called 'login' and a directive called 'userMenu'. My goal is to have the userMenu directive utilize the 'login' controller that already exists within the module. However, I may not have a complete understanding of how modules and directives should interact. Here's what I've attempted so far:

Firstly, I define my controller as shown below:

angular.module('user', []).
controller('login', ['$scope', '$http', function($scope, $http){
    $scope.logIn = function(){
        //Do something...
    }
}

Then, in my directive...

angular.module('user', []).
directive('userMenu', function(){
    return {
    priority: 0,
    templateUrl: 'app/includes/user/menu.html',
    replace: true,
    restrict: 'A',
    controller: 'login',
    }
});

However, I encounter the following error message:

Error: Argument 'login' is not a function, got undefined

Could someone provide guidance on utilizing controllers and directives within modules effectively?

Answer №1

The issue arises when you attempt to redefine the user directive while setting up your directive. It seems like you intended to add both a controller and a directive to the same module. To achieve this, you can register your directive in the following manner:

angular.module('user').directive('userMenu', function(){
    return {
    ...
    }
});

Take note that there is no need for a second parameter ([]) in the angular.module call. This indicates that you are retrieving an instance of an already defined module rather than creating a new one.

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