blog.php

<?php

class Controller_Blog extends Controller {

    /**
     * This is a simple example, the class does not exist.  There are much more
     * things you would be able to do, this is just an example.
     *
     * Yes, I know this is all (kind of) currently possible, but this encapsulates
     * the response and allows for nice things like advanced response caching.
     */

    /**
     * Here is what your dispatch class method thing could look something like:
     * 
     * $instance_of_controller->dispatch_however_you_do($the_request);
     * 
     * Since objects are passed by refence by default, we can then just use the $the_request
     * object the controller has mofified, no need to return the request from the controller method.
     *
     */

    public function action_article(Http_Request $request)
    {
        try
        {
            $article = Article::find_by_slug($request->get_param('article'));
        }
        catch (Fuel_Exception $e)
        {
            return new $request->response = new Http_Response(new View('articles/missing'), 404);
        }
        
        // Should the default status code be 200?
        $request->response = new Http_Response();

        if ($request->is_ajax())
        {
            $request->response->set_content(json_encode($article));
            $request->response->headers->set('Content-Type', 'application/json');
        }
        else
        {
	        // $request->response->headers->status_code(500);
            $request->response->set_content(new View('articles/view', array('article' => $article)));
        }
    }

}