/**
* @param Page $page
*/
protected function ensureOrderByDate($page)
{
$items = $page->getParentDocument()->getChildren();
$itemsByDate = array();
/** @var $item Page */
foreach ($items as $item) {
$itemsByDate[$item->getDate()->format('U')][$item->getPublishStartDate()->format('U')][] = $item;
}
if ('asc' == $this->sortOrder) {
ksort($itemsByDate);
} else {
krsort($itemsByDate);
}
$sortedItems = array();
foreach ($itemsByDate as $itemsForDate) {
if ('asc' == $this->sortOrder) {
ksort($itemsForDate);
} else {
krsort($itemsForDate);
}
foreach ($itemsForDate as $itemsForPublishDate) {
foreach ($itemsForPublishDate as $item) {
$sortedItems[$item->getName()] = $item;
}
}
}
if ($sortedItems !== $items->getKeys()) {
$items->clear();
foreach ($sortedItems as $key => $item) {
$items[$key] = $item;
}
}
}