From c1e23ae9e2f4dd439bbf6254c4ac48e6c9e4788c Mon Sep 17 00:00:00 2001
From: Loic d'Anterroches <titoo@users.sourceforge.net>
Date: Thu, 20 Aug 2009 15:20:15 +0200
Subject: [PATCH] Fixed to prevent the search on no available keywords.

---
 src/IDF/Search.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/IDF/Search.php b/src/IDF/Search.php
index bc56c70..de91795 100644
--- a/src/IDF/Search.php
+++ b/src/IDF/Search.php
@@ -59,7 +59,7 @@ class IDF_Search extends Pluf_Search
             $words_flat[] = $word;
         }
         $word_ids = self::getWordIds($words_flat);
-        if (in_array(null, $word_ids)) {
+        if (in_array(null, $word_ids) or count($word_ids) == 0) {
             return array();
         }
         return self::mySearchDocuments($word_ids, $project, $model);