Retrieving a directive's value within a controller

Although similar questions have been asked numerous times before, none of the solutions seem to work for me. I am new to working with directives and it seems like my lack of experience is hindering my ability to resolve this issue.

Within my directive, I have a variable that I need access to in the controller but I can't find a way to pass that value. Here is the code snippet for my directive:

return {
        restrict: 'A',
        require: 'ngModel',
        scope: {
            image: '=ngModel',
            allowedTypes: '@accept',
            dimensionRestrictions: '&dimensions',
        },
        link: function($scope, element, attrs, ngModel) {
            element.bind('change', function(event) {
                var file = (event.srcElement || event.target).files[0];
                ngModel.$setViewValue(file, 'change');
            });
        };
    } 
    

I require the file variable in the controller but I'm unsure how to achieve this. I attempted to use this fiddle, however it did not work in my scenario.

Any assistance on this matter would be greatly appreciated.

Answer №1

If you need to transfer a function from the controller to the directive, make sure to include your file variable in the process.

Check out this Example for guidance. It should help solve your issue.

Answer №2

Give this a shot:

function fileDirective() {
    return {
        restrict: 'A',
        link: function (scope, element, attrs) {
            var model = $parse(attrs.fileModel);
            var modelSetter = model.assign;

            element.bind('change', function () {
                scope.$apply(function () {
                    modelSetter(scope, element[0].files[0]);
                });
            });
        }
    };
}

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