Laravel paste

routes.php

Route::filter('after', function($response)
{
	if (($requested_type = Input::get('datagrid_download_as', false)) !== false && isset($response->content->data['datagrid']))
	{
		$original_datagrid = $response->content->data['datagrid'];
		$requested_class   = '\\UI\\DataGrid\\'.strtoupper($requested_type);

		if (class_exists($requested_class) === false)
		{
			// return the original response, we have no point on
			// going any further.
			return $response;
		}
		else
		{
			// ok! copy the data into the new me.
			$datagrid          = new $requested_class;
			$datagrid->columns = $original_datagrid->columns;
			$datagrid->data    = $original_datagrid->data;

			// write it down.
			file_put_contents(($file_location = tempnam()), $datagrid->render(true));

			// return the new laravel response
			return Response::download($file_location, 'export.'.strtolower($requested_type));
		}
	}
});