From eecd15ee687ecffe033ff109e2684b0e1bac283d Mon Sep 17 00:00:00 2001
From: "Alexander A. Klimov" <alexander.klimov@netways.de>
Date: Mon, 25 Apr 2016 15:26:08 +0200
Subject: [PATCH] NavigationItem: fall back to the default renderer if an error
 occurrs

fixes #10486
---
 library/Icinga/Web/Navigation/NavigationItem.php | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/library/Icinga/Web/Navigation/NavigationItem.php b/library/Icinga/Web/Navigation/NavigationItem.php
index c699a6d00..0f31a4209 100644
--- a/library/Icinga/Web/Navigation/NavigationItem.php
+++ b/library/Icinga/Web/Navigation/NavigationItem.php
@@ -7,6 +7,7 @@ use Exception;
 use InvalidArgumentException;
 use IteratorAggregate;
 use Icinga\Application\Icinga;
+use Icinga\Application\Logger;
 use Icinga\Exception\IcingaException;
 use Icinga\Exception\ProgrammingError;
 use Icinga\Web\Navigation\Renderer\NavigationItemRenderer;
@@ -815,7 +816,20 @@ class NavigationItem implements IteratorAggregate
      */
     public function render()
     {
-        return $this->getRenderer()->setItem($this)->render();
+        try {
+            return $this->getRenderer()->setItem($this)->render();
+        } catch (Exception $e) {
+            Logger::error(
+                'Could not invoke custom navigation item renderer. %s in %s:%d with message: %s',
+                get_class($e),
+                $e->getFile(),
+                $e->getLine(),
+                $e->getMessage()
+            );
+
+            $renderer = new NavigationItemRenderer();
+            return $renderer->render($this);
+        }
     }
 
     /**