Utilizing ng-change in an AngularJS directive with isolated scope to transition towards a component-based architecture. Let's evolve our approach

I've been struggling to get ng-change to trigger in my directive with an isolated scope. I'm working on transitioning from ng-controller to a more component-based architecture, but it's turning out to be more difficult than I anticipated.

I've created a fiddle that I can't seem to make work. Check out the fiddle

I believe the root of the issue lies somewhere in this snippet:

app.directive("search", function(service) {
    return {
        restrict: 'E',
        replace: true,
        scope: {},
        controller: ['$scope', function($scope) {
            $scope.search = function(keyword) {
                service.searchData(keyword);
            };
        }],
        template: '<div style="padding-bottom: 15px;">' +
                            '<center>' +
                '<input type="text" ng-model="keyword" ng-change="search(keyword)"/>' +
               '</center>' +
                            '</div>'
    };
});

However, looking at the fiddle will give you a more comprehensive understanding of what I'm trying to achieve.

Answer №1

Modify controllers as demonstrated below

controller: searchCtrl

Add the following code outside of the directive

 searchCtrl.$inject = ['$scope', 'service'];
 function searchCtrl($scope, service) {
    $scope.search = function(keyword) {
       alert("called - " + keyword);
       service.searchData(keyword);
    };
}

Answer №2

Charan Cherry's response is accurate when only using angular. However, I am combining angular and requireJS, so here is how I resolved the problem:

Instead of using ng-change, I utilized ng-model and set up a watcher to monitor changes and trigger my search function accordingly.

I hope this solution proves useful to others facing similar challenges.

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