directive proposed

directive.js

module.directive('pie', function () {
  return {
    replace: true,
    restrict: 'EA',
    scope: {type: '@', data:'='},
    templateUrl: "/js/test/angular/partials/pie.html",
    controller: ['$scope', '$routeParams', '$element', '$filter', function($scope, $routeParams, $element, $filter) {
    
      $scope.$watch('data', function() {
        if (_.isUndefined($scope.data) || _.isNull($scope.data) || $filter('isZeroData')($scope.data)) {
          $element.hide();
        } else {
          $element.show();
          $element.plot($scope.data);
        }
      });
    }]
  }
});