public function index()
    {
        $this->loadModel('User.Acos');
        $roles = $this->Acos->Roles->find()->all();

        $this->title(__d('user', 'User Roles List'));
        $this->set(compact('roles'));
        $this->Breadcrumb
            ->push('/admin/user/manage')
            ->push(__d('user', 'Roles'), ['plugin' => 'User', 'controller' => 'roles', 'action' => 'index']);
    }