/**
* {@inheritdoc}
*/
public function reorderChildren($order)
{
if (count($order) != $this->count()) {
throw new \InvalidArgumentException('Cannot reorder children, order does not contain all children.');
}
$newChildren = array();
foreach ($order as $name) {
if (!$this->children->containsKey($name)) {
throw new \InvalidArgumentException('Cannot find children named ' . $name);
}
$child = $this->getChild($name);
$newChildren[$name] = $child;
}
$this->setChildren($newChildren);
return $this;
}
