Slim Route Group未将url变量传递给回调

Question

I am trying to use slim's route groups, but I am having trouble getting the url parameters to pass anything in.

$app->group('/contest/:id', function($id) use ($API){
    error_log('THIS IS THE CONTEST ID: '.$id); // id is blank... why?
    $API->authorize('contest', $id);
    $contest = new Contest($id);

    $app->get('', function() use ($contest, $API){
        $data = $contest->getSettings();
        $API->output($data);
    });

    $app->get('/settings', function() use ($contest, $API){
        $data = $contest->getSettings();
        $API->output($data);
    });

    $app->get('/stats', function() use ($contest, $API){
        $data = $contest->getStats();
        $API->output($data);
    });

    $app->get('/fields', function() use ($contest, $API){
        $data = $contest->getFields();
        $API->output($data);
    });
});

Why can't I access $id in the callback function? Isn't this the point of route groups?

Answer 1

I've tried to reproduce this - with last stable release 2.6.2 - and got (probably) same problem like you.

Warning: Missing argument 1 for {closure}()

Route params in group could be placed in the callback from their childs:

$app->group('/contest/:id', function() use ($API){

    $app->get('', function($id) use ($contest, $API){
        $API->authorize('contest', $id);
        $contest = new Contest($id);
        $data = $contest->getSettings();
        $API->output($data);
    });
});

But yeah it's ugly to authorize in every single route, maybe you could do this in some kind of middleware? I think the last one on the docs page looks good to your needs.

Edit

Oh I recently found this issue, where @Gisheri already got an answer of a Slim maintainer.