From 632c09e4196ff6759d78c7b28de6a1c5764a41ef Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Sun, 25 Mar 2007 21:02:33 +0000
Subject: - Patch #114745 by moonray: book module: can't remove top-level node.

---
 modules/book/book.module | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'modules')

diff --git a/modules/book/book.module b/modules/book/book.module
index d96972a78..5d4ca8124 100644
--- a/modules/book/book.module
+++ b/modules/book/book.module
@@ -267,7 +267,7 @@ function book_outline($node) {
   );
 
   $form['nid'] = array('#type' => 'value', '#value' => $nid);
-  if ($node->parent) {
+  if (isset($node->parent)) {
     $form['update'] = array('#type' => 'submit',
       '#value' => t('Update book outline'),
     );
-- 
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