public function expireFeedImages(AgaviRequestDataHolder $rd)
    {
        $feed_images_module = new Exo_CMS_Module();
        $feed_images_module = $this->getContext()->getModel('Exo_CMS_ModuleFinder')->getModule("feed_images");
        $feed_images_field_id = $feed_images_module->getInputElement("id");

        $con = Propel::getConnection();
        $candidates = $con->prepare("SELECT i.id, i.language".
            " FROM feed_images i LEFT JOIN feed_images_feeds fi ON i.id=fi.feed_images_id".
            " WHERE fi.feed_images_id IS NULL");

        try
        {
            $state_deleted = Exo_CMS_ModuleEntry::STATE_DELETED;

            $con->beginTransaction();
            $candidates->execute();
            $candidates->setFetchMode(PDO::FETCH_NUM);
            foreach ($candidates as $row)
            {
                $image = $feed_images_module->loadEntry($row[0], $row[1]);
                if ($image)
                {
                    $values = array("image" => array("delete_binary" => 1));
                    $image->hydrate($values);
                    $image->store();
                    $image->delete();
                    exit;
                }
            }
            $candidates->closeCursor();

            $stmnt = $con->prepare("DELETE cms_history".
                " FROM feed_images, cms_history".
                " WHERE feed_images.state=:STATE".
                " AND feed_images.id=cms_history.object_id");
            $stmnt->bindParam(":STATE", $state_deleted, PDO::PARAM_INT);
            $stmnt->execute();
            $stmnt->closeCursor();

            $stmnt = $con->prepare("DELETE cms_id_sequence".
                " FROM feed_images, cms_id_sequence".
                " WHERE feed_images.state=:STATE".
                " AND feed_images.id=cms_id_sequence.id");
            $stmnt->bindParam(":STATE", $state_deleted, PDO::PARAM_INT);
            $stmnt->execute();
            $stmnt->closeCursor();

            $stmnt = $con->prepare("DELETE FROM feed_images WHERE feed_images.state=:STATE");
            $stmnt->bindParam(":STATE", $state_deleted, PDO::PARAM_INT);
            $stmnt->execute();
            $stmnt->closeCursor();

            $con->commit();
        }
        catch(Exception $e)
        {
            $con->rollBack();
            throw $e;
        }
    }