public function saveStoryContent($userstory_id, $title, $content, $lang_id)
 {
     //model db
     $userStoryContent = new Model_DbTable_UserStoryContent();
     $userStoryContent->insertStoryContent($userstory_id, $title, $content, $lang_id, $userstory_id);
     //create text lang, untuk memberitahukan content yg bahasa mana saja yg di save
     $db_lang = new Model_DbTable_Language();
     $lang_text = $db_lang->getNameById($lang_id);
     return $lang_text['language_text'];
 }