How to run the toggleClass method using Angular js if the string has a class?

Question

Angular

My table:

<table>
  <tr class="imp" toggle-class="active">
    <td></td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td></td>
    <td></td>
    <td></td>
  </tr>
  <tr class="imp" toggle-class="active">
    <td></td>
    <td></td>
    <td></td>
  </tr>
</table>

My toggle-class directive:

angular.module("app")
.directive('toggleClass', function() {
    return {
        restrict: 'A',
        link: function(scope, element, attrs) {
            element.bind('click', function() {
                element.toggleClass(attrs.toggleClass);
            });
        }
    };
});

My styles that fill and uncolor the line I clicked on.
.active {background: blue;}
I'm doing it wrong, because the lines will be output via ng-repeat, and I need a normal condition to fill the lines, which will be assigned the .imp class by another condition. How to do it?

Answer 1

<div class="{{expression=='one'?'active_class':''}}" ng-click="expression='one'"></div>
<div class="{{expression=='two'?'active_class':''}}" ng-click="expression='two'"></div>