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打开任意一个控制器(如:TagController ),会发现,里面就一个index方法,但是增删改查功能却都具备。 ``` <?php namespace App\Http\Controllers\Admin; use App\Http\Traits\TraitResource; use App\Models\Tag; use Illuminate\Http\Request; use App\Http\Controllers\Controller; class TagController extends Controller { use TraitResource; public function __construct() { self::$model = Tag::class; self::$controlName = 'tag'; } /** * Description: * User: Vijay * Date: 2019/7/9 * Time: 22:53 * @param Request $request * @return \Illuminate\Contracts\Routing\ResponseFactory|\Illuminate\Contracts\View\Factory|\Illuminate\Http\Response|\Illuminate\View\View */ public function index(Request $request) { if ($request->isMethod('post')) { $page = $request->input('page', 1); $limit = $request->input('limit', 10); $where = []; $name = $request->input('name', ''); $delete = $request->input('delete', 0); if ($name != '') { $where[] = ['name', 'like', '%' . $name . '%']; } switch ($delete) { case '1': $list = self::$model::onlyTrashed()->where($where)->get(); break; case '2': $list = self::$model::withTrashed()->where($where)->get(); break; default: $list = self::$model::where($where)->get(); break; } $res = self::getPageData($list, $page, $limit); return self::resJson(0, '获取成功', $res['data'], [ 'count' => $res['count']] ); } return view('admin.' . self::$controlName . '.index', [ 'control_name' => self::$controlName, 'delete_list' => self::$model::$delete, ]); } } ``` 找到TraitResource所在目录App\Http\Traits\TraitResource,具体的操作都在这里面。 ``` <?php /** * Description:资源操作 * Created by PhpStorm. * User: Vijay * Date: 2019/5/26 * Time: 12:06 */ namespace App\Http\Traits; use Illuminate\Http\Request; use Illuminate\Pagination\LengthAwarePaginator; trait TraitResource { /** * 模块名称,use此trait的都必须设置,这是为了更好的复制粘贴一些通用的控制器和模板代码, * @var null|string */ private static $controlName = null; /** * 模块要使用的模型 * @var null|string */ private static $model = null; /** * Description:展示列表 * User: Vijay * Date: 2019/5/27 * Time: 22:28 * @param Request $request * @return \Illuminate\Contracts\Routing\ResponseFactory|\Illuminate\Contracts\View\Factory|\Illuminate\Http\Response|\Illuminate\View\View */ public function index(Request $request) { if ($request->isMethod('post')) { $page = $request->input('page', 1); $limit = $request->input('limit', 10); $where = []; $list = self::$model::where($where)->get(); $data = self::getPageData($list, $page, $limit); return response($data); } return view('admin.' . self::$controlName . '.index', [ 'control_name' => self::$controlName, ]); } /** * Description:创建视图 * User: Vijay * Date: 2019/5/27 * Time: 22:28 * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View */ public function create() { return view('admin.' . self::$controlName . '.create', [ 'control_name' => self::$controlName, ]); } /** * Description:添加请求的接口 * User: Vijay * Date: 2019/5/27 * Time: 22:28 * @param Request $request * @return \Illuminate\Contracts\Routing\ResponseFactory|\Illuminate\Http\Response */ public function store(Request $request) { $model = new self::$model; try { $model::create($request->input()); return $this->resJson(0, '操作成功'); } catch (\Exception $e) { return $this->resJson(1, $e->getMessage()); } } /** * Description:显示某一条内容 * User: Vijay * Date: 2019/5/27 * Time: 22:28 * @param $id * @return \Illuminate\Contracts\Routing\ResponseFactory|\Illuminate\Http\Response */ public function show($id) { $info = self::$model::find($id); return $this->resJson(0, '操作成功', $info); } /** * Description:编辑内容的视图 * User: Vijay * Date: 2019/5/27 * Time: 22:29 * @param $id * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View */ public function edit($id) { $info = self::$model::find($id); return view('admin.' . self::$controlName . '.edit', [ 'info' => $info, 'control_name' => self::$controlName, ]); } /** * Description:编辑内容 * @param Request $request * @return \Illuminate\Contracts\Routing\ResponseFactory|\Illuminate\Http\Response * Description: * User: Vijay * Date: 2019/5/26 * Time: 21:20 */ public function update(Request $request) { $info = self::$model::find($request->id); if (empty($info)) { return $this->resJson(1, '没有该条记录'); } try { $res = $info->update($request->input()); return $this->resJson(0, '操作成功', $res); } catch (\Exception $e) { return $this->resJson(1, $e->getMessage()); } } /** * Description:删除 * User: Vijay * Date: 2019/5/27 * Time: 22:11 * @param Request $request * @return \Illuminate\Contracts\Routing\ResponseFactory|\Illuminate\Http\Response */ public function destroy(Request $request) { try { $res = self::$model::destroy($request->id); return $this->resJson(0, '操作成功', $res); } catch (\Exception $e) { return $this->resJson(1, $e->getMessage()); } } /** * Description:恢复数据 * User: Vijay * Date: 2019/5/27 * Time: 22:18 * @param Request $request * @return \Illuminate\Contracts\Routing\ResponseFactory|\Illuminate\Http\Response */ public function restore(Request $request) { $info = self::$model::onlyTrashed()->find($request->id); if (empty($info)) { return $this->resJson(1, '没有该条记录'); } try { $res = $info->restore(); return $this->resJson(0, '操作成功', $res); } catch (\Exception $e) { return $this->resJson(1, $e->getMessage()); } } /** * Description:彻底删除 * User: Vijay * Date: 2019/5/27 * Time: 22:18 * @param Request $request * @return \Illuminate\Contracts\Routing\ResponseFactory|\Illuminate\Http\Response */ public function forceDelete(Request $request) { $info = self::$model::onlyTrashed()->find($request->id); if (empty($info)) { return $this->resJson(1, '没有该条记录'); } try { $res = $info->forceDelete(); return $this->resJson(0, '操作成功', $res); } catch (\Exception $e) { return $this->resJson(1, $e->getMessage()); } } /** * @param object|array $list 获取的数据 * @param int $page 当前页数 * @param int $limit 没有数量 * @return array * Description:获取分页数据 * User: Vijay * Date: 2019/5/26 * Time: 15:45 */ private static function getPageData($list, $page, $limit): array { if (is_object($list)) { $listArr = $list->toArray(); } elseif (is_array($list)) { $listArr = $list; } else { $listArr = []; } $count = count($list); $item = array_slice($listArr, ($page - 1) * $limit, $limit); $paginator = new LengthAwarePaginator($item, $count, $limit, $page); return [ 'data' => $paginator->items(), 'count' => $count ]; } /** * @param int $code 返回状态码 * @param string $msg 返回信息 * @param null $data 返回数据 * @param array $additional 附加数据 * @param array $header 头信息 * @return \Illuminate\Contracts\Routing\ResponseFactory|\Illuminate\Http\Response * Description:返回json数据 * User: Vijay * Date: 2019/5/26 * Time: 16:41 */ protected function resJson($code = 0, $msg = '', $data = null, array $additional = [], array $header = []) { $result = [ 'code' => $code, 'msg' => $msg, 'data' => $data, ]; if (count($additional) > 0) { foreach ($additional as $key => $val) { $result[$key] = $val; } } $result['create_time'] = date('Y-m-d H:i:s', time()); return response($result)->withHeaders($header); } } ```