条件に従ってアクションをforward/redirect/forward404するメソッド
- sfAction::forwardIf($condition, $module, $action)
- sfAction::forwardUnless($condition, $module, $action)
- sfAction::redirectIf($condition, $url, $statusCode = 302)
- sfAction::redirectUnless($condition, $url, $statusCode = 302)
- sfAction::forward404If($condition, $message = null)
- sfAction::forward404Unless($condition, $message = null)