directive to fix file-input field's model binding in angular

ngFile.js

.directive('ngFile', ['$parse', function($parse){
  return {
    restrict: 'A',
    require: 'ngModel',
    link: function($scope, $element, attrs){
      $element.bind('change', function(event){
        $scope.$apply(function($scope){
          $parse(attrs.ngModel).assign($scope, event.target.files)
        })
      })
    }
  }
}])