From 61338a3575bb0c71054c9af549f46b63a3949ca3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pau=20Ferrer=20Oca=C3=B1a?= <crazyserver@gmail.com>
Date: Tue, 23 Sep 2014 11:24:13 +0200
Subject: [PATCH] Solved problem when receiving only one book from Marsupial
 publishers

---
 moodle/moodle2/local/rcommon/WebServices/BooksStructure.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/moodle/moodle2/local/rcommon/WebServices/BooksStructure.php b/moodle/moodle2/local/rcommon/WebServices/BooksStructure.php
index f71c4ac..1b86244 100755
--- a/moodle/moodle2/local/rcommon/WebServices/BooksStructure.php
+++ b/moodle/moodle2/local/rcommon/WebServices/BooksStructure.php
@@ -47,7 +47,7 @@ function get_books_structure_publisher($publisher, $isbn = false) {
         $books = get_books($publisher);
         if(!empty($books)){
 			//  Fix bug, when there is just one received book
-			if (!isset($books[0])) {
+			if (!is_array($books) || !isset($books[0])) {
 				$books = array($books);
 			}
             echo '<ol>';