add alert message

themes/beauty/controller/ListController.php

@@ -27,7 +27,8 @@ Class ListController extends Controller {
         $cacheSeconds = 86400;
         $cachedParentData = Common::getCacheFromFile($cacheParentDataId, $cacheSeconds);
         if (empty($cachedParentData)) {
-            return $this->redirect('/');
+            $err = '缓存数据已失效，如果重新点击目录依然打不开，请联系管理员。';
+            return $this->redirect('/?err=' . urlencode($err));
         }
 
         if (strpos($cacheParentDataId, $cateId) === false && empty($cachedParentData[$cateId])) {

themes/beauty/controller/SiteController.php

@@ -123,6 +123,10 @@ Class SiteController extends Controller {
         }
 
 
+        //提示信息支持
+        $alertWarning = $this->get('err', '');
+
+
         //翻页支持
         $page = $this->get('page', 1);
         $pageSize = $this->get('limit', 24);
@@ -214,7 +218,8 @@ Class SiteController extends Controller {
         $viewName = 'index';
         $params = compact(
             'page', 'pageSize', 'cacheDataId', 'showType',
-            'dirTree', 'scanResults', 'menus', 'htmlReadme', 'htmlCateReadme', 'mp3File', 'copyright'
+            'dirTree', 'scanResults', 'menus', 'htmlReadme', 'htmlCateReadme', 'mp3File', 'copyright',
+            'alertWarning'
         );
         return $this->render($viewName, $params, $pageTitle);
     }

themes/beauty/views/site/index.php

@@ -99,6 +99,13 @@ if ($total > 0) {
 eof;
 }
 
+
+if (!empty($viewData['alertWarning'])) {
+    echo <<<eof
+    <div class="alert alert-warning">{$viewData['alertWarning']}</div>
+eof;
+}
+
 echo <<<eof
     <div class="breadcrumbs text_dark">
         {$totalNum}