From deb1bfbcbaaa62acb2263ba797b5068e142a6353 Mon Sep 17 00:00:00 2001
From: Andrew Short <andrewjshort@gmail.com>
Date: Fri, 4 Oct 2013 00:04:55 +1000
Subject: [PATCH] Fix Versioned::augmentSQL() when the data query was null.

---
 model/Versioned.php | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/model/Versioned.php b/model/Versioned.php
index b2e2de3a0..d1b9417fe 100644
--- a/model/Versioned.php
+++ b/model/Versioned.php
@@ -182,13 +182,13 @@ class Versioned extends DataExtension {
 	 * @todo Should this all go into VersionedDataQuery?
 	 */
 	public function augmentSQL(SQLQuery &$query, DataQuery &$dataQuery = null) {
-		$baseTable = ClassInfo::baseDataClass($dataQuery->dataClass());
-		
-		switch($dataQuery->getQueryParam('Versioned.mode')) {
-		// Noop
-		case '':
-			break;
+		if(!$dataQuery || !$dataQuery->getQueryParam('Versioned.mode')) {
+			return;
+		}
 
+		$baseTable = ClassInfo::baseDataClass($dataQuery->dataClass());
+
+		switch($dataQuery->getQueryParam('Versioned.mode')) {
 		// Reading a specific data from the archive
 		case 'archive':
 			$date = $dataQuery->getQueryParam('Versioned.date');