What do I need to add in order to connect a controller to a form submission?

Let's set the scene: There are multiple newsletter forms scattered across a webpage, all needing to perform the same action. This action involves making an AJAX request with certain data and displaying a message using an alert once the request is complete. Currently, the implementation looks like this:

var myApp = angular.module('myApp', []);
myApp.directive('form-newsletter', [function() {
    return {
        restrict: 'C',
        link : function($scope, elem) {
              $scope.data = { }
              var $el = elem.find('button[type=submit]');
              $el.on('click' , function(){
                  if (! $scope.data.email ){
                      alert("Please, fill in the e-mail");
                      return false;
                  }
                  if ( $(this).val().length > 0 ){
                      $scope.data.gender = $(this).val();
                  }
                  var data = $scope.data;
                  $.ajax({
                    url: '/newsletter/join',
                    type: 'get',
                    dataType: 'json',
                    data: data,
                    success: function(data) {
                        if (data.validation == true) {
                            alert('Thank you for joining our mailing list.');
                        } else {
                            alert(data.error);
                        }
                    }
                  })
                  return false;
              });
          }
        }
 }]);

The current solution works fine, but there's room for improvement. Ideally, Angular's built-in http module would be used instead of jQuery ajax, but encountering issues when trying to inject it. There have been attempts to create a controller to handle the AJAX request, but without success so far. Any suggestions on how to enhance this code? Your help is appreciated.

Answer №1

To effectively utilize the $http service in your directive, it must be injected into the directive.

myApp.directive('form-newsletter', ['$http',function($http) {

While a directive can handle this task, if you are not performing DOM manipulation, you may consider managing everything within the controller using ngClick and ngSubmit easily.

Directives serve as reusable components in HTML, offering functionalities such as animations, event listeners, etc. They primarily focus on manipulating the DOM or responding to events by calling specific functions in the controller.

If your code is solely focused on form submission, handling it within the controller might suffice. However, if multiple forms need to be managed on the same page, utilizing a directive could be beneficial. Alternatively, you can also adjust your controller to manage the forms, providing flexibility in either approach.

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