/**
* This feature is cleaner for redirection.
* Saves requests to the database if I'm not mistaken.
* @return $this|null redirect to either the correct page/object or do nothing (In that case, the item exists and we're gonna show it lateron).
*/
private function needsRedirect()
{
/** @var int|string $id */
$id = $this->getRequest()->param('ID');
/** @var string $action */
$action = $this->getRequest()->param('Action');
/** @var array $handlers */
$handlers = self::$url_handlers;
if (isset($handlers[$action]) && $handlers[$action] == 'show' && !($news = $this->getNews())) {
if ($id && is_numeric($id)) {
/** @var News $redirect */
$redirect = $this->Newsitems()->byId($id);
$this->redirect($redirect->Link(), 301);
} else {
/** @var Renamed $renamed */
$renamed = Renamed::get()->filter(array('OldLink' => $id));
if ($renamed->count() > 0) {
$this->redirect($renamed->First()->News()->Link(), 301);
} else {
$this->redirect($this->Link(), 404);
}
}
} elseif ($action === 'latest') {
/** @var News $item */
$item = News::get()->filter(array('Live' => true))->first();
$this->redirect($item->Link(), 302);
}
}
/**
* Setup the URLSegment for this item and create a Renamed Object if it's a rename-action.
*/
private function setURLValue()
{
if (!$this->URLSegment || $this->isChanged('Title') && !$this->isChanged('URLSegment')) {
if ($this->ID > 0) {
$Renamed = new Renamed();
$Renamed->OldLink = $this->URLSegment;
$Renamed->NewsID = $this->ID;
$Renamed->write();
}
$this->URLSegment = singleton('SiteTree')->generateURLSegment($this->Title);
if (strpos($this->URLSegment, 'page-') === false) {
$nr = 1;
$URLSegment = $this->URLSegment;
while ($this->LookForExistingURLSegment($URLSegment)) {
$URLSegment = $this->URLSegment . '-' . $nr++;
}
$this->URLSegment = $URLSegment;
}
}
}