Used in: http://cacodaemon.de/index.php?id=16

BlogController.php

<?php

class BlogController extends Zend_Controller_Action
{
    public function indexAction()
    {
        try {
            $model = new Application_Model_Article;
            $this->view->articles = $model->fetchAll();
        }
        catch (Exception $e) {
            $this->view->error = $e->getMessage();
        }
    }

    public function articleAction()
    {
        $model = new Application_Model_Article;

        $this->view->article = $model->find(
            $this->getRequest()->getParam('_id')
        );

        $this->view->postCommentForm = new Application_Form_Comment(array(
            '_id' => $model->_id,
        ));

    }

    public function postcommentAction()
    {
        $form = new Application_Form_Comment;

        if (!$form->isValid($data = $this->getRequest()->getParams())) {
            $form->populate($data);
            $this->_redirect('/blog/', array('exit', true));
        }

        $article = new Application_Model_Article;
        $article->find($data['_id']);
        $article->addComment(new Application_Model_Comment(array(
            'text'  => $data['text'],
            'autor' => $data['autor'],
            'date'  => new MongoDate(time()),
        )));

        $this->_redirect('/blog/article/_id/' . $data['_id']);
    }
}