From 32c98e3353cac07c5a393103065d733cbc370794 Mon Sep 17 00:00:00 2001
From: Thomas <tb@woodcrest.local>
Date: Thu, 24 Oct 2013 10:38:32 +0200
Subject: Fix time-range queries if only start is given (#2378)

---
 lib/Kolab/CalDAV/CalendarBackend.php | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/Kolab/CalDAV/CalendarBackend.php b/lib/Kolab/CalDAV/CalendarBackend.php
index 510ddba..17eba73 100644
--- a/lib/Kolab/CalDAV/CalendarBackend.php
+++ b/lib/Kolab/CalDAV/CalendarBackend.php
@@ -558,8 +558,12 @@ class CalendarBackend extends CalDAV\Backend\AbstractBackend
           if ($filter['name'] != 'VEVENT')
               continue;
           if (is_array($filter['time-range'])) {
-              $query[] = array('dtstart', '<=', $filter['time-range']['end']);
-              $query[] = array('dtend',   '>=', $filter['time-range']['start']);
+              if (!empty($filter['time-range']['end'])) {
+                  $query[] = array('dtstart', '<=', $filter['time-range']['end']);
+              }
+              if (!empty($filter['time-range']['start'])) {
+                  $query[] = array('dtend',   '>=', $filter['time-range']['start']);
+              }
           }
       }
 
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