public function fillEmptySlugs($slugList, $postType, $defaultSlug, $id = 0)
    {
        $slugsFinal = array();
        foreach($slugList as $languageSlug => $slug){
            $tmpSlug = $slug;
            if($slug == "") {
                $tmpSlug = $defaultSlug;
            }
            $checkedSlug = parent::generateSlug($tmpSlug, $postType, 'postID', $languageSlug, $id, true, true);
            $slugsFinal[$languageSlug] = $checkedSlug;
        }
        return $slugsFinal;
    }