Check not null date

joomla · Jan 16, 2015 · 2cbc315 · 2cbc315
1 parent f74d8a6
commit 2cbc315
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/libraries/cms/html/html.php b/libraries/cms/html/html.php
@@ -975,7 +975,7 @@ public static function calendar($value, $name, $id, $format = '%Y-%m-%d', $attri
 		static::_('bootstrap.tooltip');
 
 		// Format value when not nulldate ('0000-00-00 00:00:00'), otherwise blank it as it would result in 1970-01-01.
-		if ($value != JFactory::getDbo()->getNullDate())
+		if (!is_null($value) && $value != JFactory::getDbo()->getNullDate())
 		{
 			$tz = date_default_timezone_get();
 			date_default_timezone_set('UTC');