public function delete()
{
$todoId = Encryption::decryptIdWithDash($this->request->data("todo_id"));
$this->todo->delete($todoId);
// in case of normal post request
Session::set('success', "Todo has been deleted");
return $this->redirector->root("Todo");
// in case of ajax
// $this->view->renderJson(array("success" => "Todo has been deleted"));
}