From d92258da8fafb96ea8e433a554463e2b3a872945 Mon Sep 17 00:00:00 2001
From: Ingo Schommer <ingo@silverstripe.com>
Date: Tue, 11 Dec 2012 11:07:00 +0100
Subject: [PATCH] Allow calling SSViewer_Scope on empty sets

Specifically fixes a bug where a SelectionGroup_Item
without a "child" field causes fatal errors.
---
 view/SSViewer.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/view/SSViewer.php b/view/SSViewer.php
index f0cade1e6..226d981fe 100644
--- a/view/SSViewer.php
+++ b/view/SSViewer.php
@@ -141,7 +141,7 @@ class SSViewer_Scope {
 	
 	public function __call($name, $arguments) {
 		$on = $this->itemIterator ? $this->itemIterator->current() : $this->item;
-		$retval = call_user_func_array(array($on, $name), $arguments);
+		$retval = $on ? call_user_func_array(array($on, $name), $arguments) : null;
 		
 		$this->resetLocalScope();
 		return $retval;