cache laravel

gistfile1.txt

Route::filter('cache', function($route, $request, $response = null)
{
    $key = 'route-'.Str::slug(Request::url());
    if(is_null($response) && Cache::has($key))
    {
        return Cache::get($key);
    }
    elseif(!is_null($response) && !Cache::has($key))
    {
        Cache::put($key, $response->getContent(), 30);
    }
});

Route::get('/', array('before' => 'cache', 'after' => 'cache', 'uses' => 'HomeController@show'));