Angularjs Confirmation Modal as Directive with action - angularjs

Question

I want to create angularjs directive mydialog wihc triggers the modal.Once the model is open I will have title and content,okcancel and confirm .Once the user click the confirm the corresponding action i.e. save should trigger .Here the save action is in MainCtrl .How to trigger that.
HTML Directive:
<my-dialog newmodal="alertModel" ></my-dialog>
ConfirmationDailog.html Code :
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" ng-click="$hide()">×</button>
<h4 class="modal-title">{{alertModel.Title}}</h4>
</div>
<div class="modal-body">
{{alertModel.Message}}
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" ng-click="cancel()">Cancel</button>
<button type="button" class="btn btn-danger" ng-click="executeDialogAction(alertModel.action)">Confirm</button>
</div>
</div>
Below is the JS part :
var app = angular.module('plunker', ['ui.bootstrap']);
app.controller('MainCtrl', ['$scope', '$uibModal',
function ($scope,$uibModal) {
$scope.name = 'World';
var alertModel = {};
alertModel.Title = "My Title";
alertModel.Message = "The Conent";
alertModel.action= "save";
$scope.alertModel = alertModel;
$scope.save= function () {
alert('from outside');
}
}]);
my Dialog Directive that triggers the model
app.directive('myDialog', [
function () {
return {
scope: {
mymodal: '=newmodal',
},
template: "<button class='btn btn-danger' ng-lick='open(mymodal)'>Open Modal</button>",
controller: ModalController
};
}]);
function ModalController($uibModal, $log, $scope) {
$scope.animationsEnabled = true;
$scope.open = function (alertModel) {
var modalInstance = $uibModal.open({
animation: $scope.animationsEnabled,
templateUrl: 'ConfirmationDailog.html',
controller: ModalInstanceCtrl,
scope:$scope,
resolve: {
test: function () {
return alertModel;
}
},
size: 'lg'
});
modalInstance.result.then(function (selectedItem) {
console.log("Confirmed: " + selectedItem);
$scope.selectedItem = selectedItem;
}, function () {
$log.info('modal dismissed at: ' + new Date());
});
};
}
function ModalInstanceCtrl($scope, $uibModalInstance, test) {
console.log('in');
$scope.alertModel = test;
$scope.cancel = function () {
$scope.$dismiss();
}
$scope.executeDialogAction = function (action) {
if (typeof $scope[action] === "function") {
$scope[action]();
}
};
}