/**
* Given a PageArray, convert it to a cachable array
*
* @param PageArray $items
* @return array
* @throws WireException
* @since Version 2.5.28
*
*/
protected function pageArrayToArray(PageArray $items)
{
$templates = array();
$ids = array();
$pageClasses = array();
foreach ($items as $item) {
$templates[$item->template->id] = $item->template->id;
$ids[] = $item->id;
$pageClass = $item->className();
$pageClasses[$pageClass] = $pageClass;
}
if (count($pageClasses) > 1) {
throw new WireException("Can't cache multiple page types together: " . implode(', ', $pageClasses));
}
$data = array('PageArray' => $ids, 'template' => count($templates) == 1 ? reset($templates) : 0);
$pageClass = reset($pageClasses);
if ($pageClass && $pageClass != 'Page') {
$data['pageClass'] = $pageClass;
}
$pageArrayClass = $items->className();
if ($pageArrayClass != 'PageArray') {
$data['pageArrayClass'] = $pageArrayClass;
}
return $data;
}
