我正在存储和更新方法中编写以下代码:
$v = Validator::make($request->all(), [
'field' => 'required|max:100|min:5'
]);
if ($v->fails()) {
return redirect('route name')
->withErrors($v)
->withInput();
}
在执行任何动作方法之前,是否有任何内置的动作方法执行?如果是的话,它对个人行动方法有效还是对控制器有效?
您可以使用中间件或覆盖callAction
,https://laravel.com/api/5.6/Illuminate/Routing/Controller.html#method_callAction
use Illuminate'Routing'Controller;
class MyController extends Controller
{
public function callAction($method, $parameters)
{
// code that runs before any action
if (in_array($method, ['method1', 'method2'])) {
// trigger validation
}
return parent::callAction($method, $parameters);
}
}
2020更新:
如果您发现自己在Laravel 5+中重复使用验证规则,我建议将它们添加到请求中:https://laravel.com/docs/6.x/validation#form-请求验证
/**
* Store the incoming blog post.
*
* @param StoreBlogPost $request
* @return Response
*/
public function store(StoreBlogPost $request)
{
// The incoming request is valid...
// Retrieve the validated input data...
$validated = $request->validated();
}
一个内置的解决方案是使用中间件,但我看到您希望执行这段代码来执行特定的操作。
如果我是你,我会创建一个具体的controller
类,我的所有控制器都将从中继承,这个控制器看起来像这样:
class FilteredController extends BaseController
{
private function getControllerAction(Request $request)
{
$action = $request->route()->getAction();
$controller = class_basename($action['controller']);
list($controller, $action) = explode('@', $controller);
return ['action' => $action, 'controller' => $controller];
}
private function validateUpdateRequests()
{
/* Validation code
that will run for update_post action,
and update_post ONLY*/
}
public function validateCreateRequests()
{
/* Validation code that will run for
create_post action, and
create_post ONLY.*/
}
public __construct(Request $request)
{
$route_details = $this->getControllerAction($request);
if($route_details['controller'] == 'postsController')
{
if($route_details['action'] == 'update_post')
{
$this->validateUpdateRequests();
}
else if($route_details['action'] == 'update_post')
{
$this->validateCreateRequests();
}
}
}
}
我希望这能有所帮助。
同样,更好的方法是使用中间件,要将中间件用于特定操作,您需要指定路由中的过滤,例如:
Route::get('/route_to_my_action', 'MyController@myAction')
->middleware(['my_middleware']);
有关Laravel中这种过滤风格的更多信息,请访问文档