//查看和搜索列表
    public function index(){
        $where  = $this->buildSearchParams();
        $order  = $this->buildOrder();
        $data   = $this->model->where($where)->order($order){%withRelation%};
        $paging = $this->request->param('paging', false);
        if ($paging) {
            $limit        = $this->request->param('limit', Config::get('paginate.limit'));
            $data         = $data->paginate($limit)->toArray();
            $data['data'] = $this->getSelectedData($data['data']);
        } else {
            $data = $data->select()->toArray();
        }
        return $this->success('数据获取成功', $data);
    }