Updating the `$scope` object from the controller of a directive: A step-by-step guide

When attempting to update the $scope object from the controller, I am encountering an issue where it is not updating on the DOM. However, in the console, I am able to see the updated status.

Below is my code snippet:

var galleryMenu = ['$route', function ($route) {

    return {

        scope : true,

        replace : true,

        template : function () {

            var page = $route.current.className || 'home';

            return galleryMenuItem(page);

        },

        controller : function ($scope, $element) {

            $scope.galleryProject = function () {

                $scope.galleryShow = !$scope.galleryShow;
                console.log($scope.galleryShow) //returns true in the console, but the `DOM` does not reflect this change.

            }


        }

    }

}];

Answer №1

When using the directive with scope: true, a new scope is created that inherits from the parent scope.

The galleryShow object should adhere to the dot rule.

$scope.model = {};
$scope.model.galleryShow = 'something';

This allows the directive to access and modify the $scope.model object through prototypal inheritance, enabling changes made to $scope.model.galleryShow to update the parent scope.

Directive Controller

controller : function ($scope, $element) {
     $scope.galleryProject = function () {
         $scope.model.galleryShow = !$scope.galleryShow;
         console.log($scope.model.galleryShow) //outputs true, but the `DOM` does not update.
     }
  }

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