From 99fc277692268c26a69d2538a1eb41740c672b60 Mon Sep 17 00:00:00 2001
From: Demian Katz <demian.katz@villanova.edu>
Date: Tue, 10 May 2016 15:03:02 -0400
Subject: [PATCH] Avoid PHP notice.

---
 module/VuFind/src/VuFind/OAI/Server.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/module/VuFind/src/VuFind/OAI/Server.php b/module/VuFind/src/VuFind/OAI/Server.php
index 53bece77576..e8726872a21 100644
--- a/module/VuFind/src/VuFind/OAI/Server.php
+++ b/module/VuFind/src/VuFind/OAI/Server.php
@@ -596,7 +596,8 @@ class Server
 
         // Get non-deleted records from the Solr index:
         $result = $this->listRecordsGetNonDeleted(
-            $from, $until, $solrOffset, $solrLimit, $params['set']
+            $from, $until, $solrOffset, $solrLimit,
+            isset($params['set']) ? $params['set'] : ''
         );
         $nonDeletedCount = $result->getResultTotal();
         $format = $params['metadataPrefix'];
-- 
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