diff --git a/core/model/ListDecorator.php b/core/model/ListDecorator.php
new file mode 100644
index 000000000..7ca89de91
--- /dev/null
+++ b/core/model/ListDecorator.php
@@ -0,0 +1,197 @@
+<?php
+/**
+ * A base class for decorators that wrap around a list to provide additional
+ * functionality. It extends {@link DataObjectSet} so that places which expect
+ * a list are passed one.
+ *
+ * @package    sapphire
+ * @subpackage model
+ */
+abstract class SS_ListDecorator extends DataObjectSet {
+
+	protected $list;
+
+	public function __construct(DataObjectSet $list) {
+		$this->list = $list;
+		parent::__construct();
+	}
+
+	/**
+	 * Returns the list this decorator wraps around.
+	 *
+	 * @return DataObjectSet
+	 */
+	public function getList() {
+		return $this->list;
+	}
+
+	// PROXIED METHODS ---------------------------------------------------------
+
+	public function offsetExists($key) {
+		return $this->list->offsetExists($key);
+	}
+
+	public function offsetGet($key) {
+		return $this->list->offsetGet($key);
+	}
+
+	public function offsetSet($key, $value) {
+		$this->list->offsetSet($key, $value);
+	}
+
+	public function offsetUnset($key) {
+		$this->list->offsetUnset($key);
+	}
+
+	public function destroy() {
+		$this->list->destroy();
+	}
+
+	public function emptyItems() {
+		$this->list->emptyItems();
+	}
+
+	public function toArray($index = null) {
+		return $this->list->toArray($index);
+	}
+
+	public function toNestedArray($index = null){
+		return $this->list->toNestedArray($index);
+	}
+
+	public function push($item, $key = null) {
+		$this->list->push($item, $key);
+	}
+
+	public function insertFirst($item, $key = null) {
+		$this->list->insertFirst($item, $key);
+	}
+
+	public function unshift($item) {
+		$this->list->unshift($item);
+	}
+
+	public function shift() {
+		return $this->list->shift();
+	}
+
+	public function pop() {
+		return $this->list->pop();
+	}
+
+	public function remove($itemObject) {
+		$this->list->remove($itemObject);
+	}
+
+	public function replace($itemOld, $itemNew) {
+		$this->list->replace($itemOld, $itemNew);
+	}
+
+	public function merge($anotherSet){
+		$this->list->merge($anotherSet);
+	}
+
+	public function getRange($offset, $length) {
+		return $this->list->getRange($offset, $length);
+	}
+
+	public function getIterator() {
+		return $this->list->getIterator();
+	}
+
+	public function exists() {
+		return $this->list->exists();
+	}
+
+	public function First() {
+		return $this->list->First();
+	}
+
+	public function Last() {
+		return $this->list->Last();
+	}
+
+	public function TotalItems() {
+		return $this->list->TotalItems();
+	}
+
+	public function Count() {
+		return $this->list->Count();
+	}
+
+	public function UL() {
+		return $this->list->UL();
+	}
+
+	public function forTemplate() {
+		return $this->list->forTemplate();
+	}
+
+	public function map($index = 'ID', $titleField = 'Title', $emptyString = null, $sort = false) {
+		return $this->list->map($index, $titleField, $emptyString, $sort);
+	}
+
+	public function find($key, $value) {
+		return $this->list->find($key, $value);
+	}
+
+	public function column($value = 'ID') {
+		return $this->list->column($value);
+	}
+
+	public function groupBy($index){
+		return $this->list->groupBy($index);
+	}
+
+	public function GroupedBy($index, $childControl = "Children") {
+		return $this->list->GroupedBy($index, $childControl);
+	}
+
+	public function buildNestedUL($nestingLevels, $ulExtraAttributes = '') {
+		return $this->list->buildNestedUL($nestingLevels, $ulExtraAttributes);
+	}
+
+	public function getChildrenAsUL($nestingLevels, $level = 0, $template = "<li id=\"record-\$ID\" class=\"\$EvenOdd\">\$Title", $ulExtraAttributes = null, &$itemCount = 0) {
+		return $this->list->getChildrenAsUL(
+			$nestingLevels,
+			$level,
+			$template,
+			$ulExtraAttributes,
+			$itemCount);
+	}
+
+	public function sort($fieldname, $direction = "ASC") {
+		$this->list->sort($fieldname, $direction);
+	}
+
+	public function removeDuplicates($field = 'ID') {
+		$this->list->removeDuplicates($field);
+	}
+
+	public function debug() {
+		return $this->list->debug();
+	}
+
+	public function groupWithParents($groupField, $groupClassName, $sortParents = null, $parentField = 'ID', $collapse = false, $requiredParents = null) {
+		return $this->list->groupWithParents(
+			$groupField,
+			$groupClassName,
+			$sortParents,
+			$parentField,
+			$collapse,
+			$requiredParents);
+	}
+
+	public function addWithoutWrite($field) {
+		$this->list->addWithoutWrite($field);
+	}
+
+	public function containsIDs($idList) {
+		return $this->list->condaintsIDs($idList);
+	}
+
+	public function onlyContainsIDs($idList) {
+		return $this->list->onlyContainsIDs($idList);
+	}
+
+}
\ No newline at end of file