public function index()
    {
        $this->loadModel('User.Users');
        $users = $this->Users->find()->contain(['Roles']);

        if (!empty($this->request->query['filter'])) {
            $this->Users->search($this->request->query['filter'], $users);
        }

        $this->title(__d('user', 'Users List'));
        $this->set('users', $this->paginate($users));
        $this->Breadcrumb->push('/admin/user/manage');
    }