gistfile1.php

<?
class PostController extends Controller
{
	public function index($post_id)
	{
		if (is_numeric($post_id))
		{
			$post=Model::Instance("blog.post",$post_id);

			if ($post)
				return array('post'=>$post);
		}
		
		throw new NotFoundException("Could not find post $post_id.");
	}
}