$scope.swipe_listener = function(event) {
            console.log(event.gesture.direction + " " + $scope.workout_form);
            if($scope.workout_form){
                if (event.gesture.direction == 'left' && $scope.workout_form.$valid) {
                    $scope.next_workout();
                    console.log('next workout');
                }
            }

            if (event.gesture.direction == 'right' && $scope.current_workout_index != 0) {
                $scope.previous_workout();
            }
        };

        $scope.swipe_gesture = $ionicGesture.on('swipe', $scope.swipe_listener, document.getElementsByTagName('body'));