将参数传递给过滤器 - Laravel 4
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Passing arguments to a filter - Laravel 4
提问by AndrewMcLagan
Is it possible to access route parameters within a filter?
是否可以在过滤器中访问路由参数？
e.g. I want to access the $agencyId parameter:
例如我想访问 $agencyId 参数：
Route::group(array('prefix' => 'agency'), function()
{
# Agency Dashboard
Route::get('{agencyId}', array('as' => 'agency', 'uses' => 'Controllers\Agency\DashboardController@getIndex'));
});
I want to access this $agencyId parameter within my filter:
我想在我的过滤器中访问这个 $agencyId 参数：
Route::filter('agency-auth', function()
{
// Check if the user is logged in
if ( ! Sentry::check())
{
// Store the current uri in the session
Session::put('loginRedirect', Request::url());
// Redirect to the login page
return Redirect::route('signin');
}
// this clearly does not work..? how do i do this?
$agencyId = Input::get('agencyId');
$agency = Sentry::getGroupProvider()->findById($agencyId);
// Check if the user has access to the admin page
if ( ! Sentry::getUser()->inGroup($agency))
{
// Show the insufficient permissions page
return App::abort(403);
}
});
Just for reference i call this filter in my controller as such:
仅供参考，我在控制器中将这个过滤器称为：
class AgencyController extends AuthorizedController {
/**
* Initializer.
*
* @return void
*/
public function __construct()
{
// Apply the admin auth filter
$this->beforeFilter('agency-auth');
}
...
回答by netvision73
Input::getcan only retrieve GETor POST(and so on) arguments.
Input::get只能检索GET或POST（等等）参数。
To get route parameters, you have to grab Routeobject in your filter, like this :
要获取路由参数，您必须Route在过滤器中抓取对象，如下所示：
Route::filter('agency-auth', function($route) { ... });
And get parameters (in your filter) :
并获取参数（在您的过滤器中）：
$route->getParameter('agencyId');
(just for fun) In your route
（只是为了好玩）在你的路线上
Route::get('{agencyId}', array('as' => 'agency', 'uses' => 'Controllers\Agency\DashboardController@getIndex'));
you can use in the parameters array 'before' => 'YOUR_FILTER'instead of detailing it in your constructor.
您可以在参数数组中使用，'before' => 'YOUR_FILTER'而不是在构造函数中对其进行详细说明。
回答by albur
The method name has changed in Laravel 4.1 to parameter. For example, in a RESTful controller:
Laravel 4.1 中的方法名称已更改为parameter. 例如，在 RESTful 控制器中：
$this->beforeFilter(function($route, $request) {
$userId = $route->parameter('users');
});
Another option is to retrieve the parameter through the Routefacade, which is handy when you are outside of a route:
另一种选择是通过Route门面检索参数，这在您在路由之外时很方便：
$id = Route::input('id');
