public static function getCategoryId($title, $language = null)
{
$title = (string) $title;
$language = $language !== null ? (string) $language : BL::getWorkingLanguage();
return (int) BackendModel::getContainer()->get('database')->getVar('SELECT i.id
FROM blog_categories AS i
WHERE i.title = ? AND i.language = ?', array($title, $language));
}