silverstripe-framework/core/control/ModelAsController.php

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<?php
/**
* ModelAsController will hand over all control to the appopriate model object
* It uses URLSegment to determine the right object. Also, if (ModelClass)_Controller exists,
* that controller will be used instead. It should be a subclass of ContentController.
*
* @package sapphire
*/
class ModelAsController extends Controller implements NestedController {
public function handleRequest($request) {
$this->pushCurrent();
$this->urlParams = $request->allParams();
$this->init();
$result = $this->getNestedController();
if(is_object($result) && $result instanceOf RequestHandler) {
$result = $result->handleRequest($request);
}
$this->popCurrent();
return $result;
}
public function init() {
singleton('SiteTree')->extend('modelascontrollerInit', $this);
Director::set_site_mode('site');
}
public function getNestedController() {
if($this->urlParams['URLSegment']) {
$SQL_URLSegment = Convert::raw2sql($this->urlParams['URLSegment']);
$child = SiteTree::get_by_url($SQL_URLSegment);
if(!$child) {
if($child = $this->findOldPage($SQL_URLSegment)) {
$url = Controller::join_links(
Director::baseURL(),
$child->URLSegment,
(isset($this->urlParams['Action'])) ? $this->urlParams['Action'] : null,
(isset($this->urlParams['ID'])) ? $this->urlParams['ID'] : null,
(isset($this->urlParams['OtherID'])) ? $this->urlParams['OtherID'] : null
);
$response = new HTTPResponse();
$response->redirect($url, 301);
return $response;
}
$child = $this->get404Page();
}
if($child) {
if(isset($_REQUEST['debug'])) Debug::message("Using record #$child->ID of type $child->class with URL {$this->urlParams['URLSegment']}");
// set language
if($child->Lang) Translatable::set_reading_lang($child->Lang);
$controllerClass = "{$child->class}_Controller";
if($this->urlParams['Action'] && ClassInfo::exists($controllerClass.'_'.$this->urlParams['Action'])) {
$controllerClass = $controllerClass.'_'.$this->urlParams['Action'];
}
if(ClassInfo::exists($controllerClass)) {
$controller = new $controllerClass($child);
} else {
$controller = $child;
}
return $controller;
} else {
return new HTTPResponse("The requested page couldn't be found.",404);
}
} else {
user_error("ModelAsController not geting a URLSegment. It looks like the site isn't redirecting to home", E_USER_ERROR);
}
}
protected function findOldPage($urlSegment) {
$versionedQuery = new SQLQuery (
'"RecordID"', '"SiteTree_versions"',
"\"WasPublished\" AND \"URLSegment\" = '$urlSegment'",
'"LastEdited" DESC, "WasPublished"',
null, null, 1
);
$result = $versionedQuery->execute();
if($result->numRecords() == 1 && $redirectPage = $result->nextRecord()) {
if($redirectObj = DataObject::get_by_id('SiteTree', $redirectPage['RecordID'])) return $redirectObj;
}
return false;
}
protected function get404Page() {
if($page = DataObject::get_one("ErrorPage", "\"ErrorCode\" = '404'")) return $page;
else return DataObject::get_one("SiteTree", "\"URLSegment\" = '404'");
}
}
?>