public static function addSettingGroup($key, $name_lang, $desc_lang = '')
{
$group = self::findSettingGroup($key);
if (!$group) {
$group = new SettingGroupItem();
}
$group->setting_group_key = $key;
$group->setting_group_name_lang = $name_lang;
$group->setting_group_desc_lang = $desc_lang;
$group->save();
return $group;
}
