silverstripe-reports/code/controllers/ModelAsController.php
Sam Minnee 39792debb8 FIX Use RequestHandler::httpError() for all HTTP errors.
https://github.com/silverstripe/sapphire/pull/827 adds some extension points for catching HTTP errors such as 404.  This change fixes some issues where httpError() isn't used all the time.  Note that the aforementioned pull request will be necessary to ensure that it works properly.
2012-09-27 12:56:56 +12:00

186 lines
6.0 KiB
PHP

<?php
/**
* ModelAsController deals with mapping the initial request to the first {@link SiteTree}/{@link ContentController}
* pair, which are then used to handle the request.
*
* @package cms
* @subpackage control
*/
class ModelAsController extends Controller implements NestedController {
/**
* Get the appropriate {@link ContentController} for handling a {@link SiteTree} object, link it to the object and
* return it.
*
* @param SiteTree $sitetree
* @param string $action
* @return ContentController
*/
static public function controller_for(SiteTree $sitetree, $action = null) {
if($sitetree->class == 'SiteTree') $controller = "ContentController";
else $controller = "{$sitetree->class}_Controller";
if($action && class_exists($controller . '_' . ucfirst($action))) {
$controller = $controller . '_' . ucfirst($action);
}
return class_exists($controller) ? Injector::inst()->create($controller, $sitetree) : $sitetree;
}
public function init() {
singleton('SiteTree')->extend('modelascontrollerInit', $this);
parent::init();
}
/**
* @uses ModelAsController::getNestedController()
* @return SS_HTTPResponse
*/
public function handleRequest(SS_HTTPRequest $request, DataModel $model) {
$this->request = $request;
$this->setDataModel($model);
$this->pushCurrent();
// Create a response just in case init() decides to redirect
$this->response = new SS_HTTPResponse();
$this->init();
// If we had a redirection or something, halt processing.
if($this->response->isFinished()) {
$this->popCurrent();
return $this->response;
}
// If the database has not yet been created, redirect to the build page.
if(!DB::isActive() || !ClassInfo::hasTable('SiteTree')) {
$this->response->redirect(Director::absoluteBaseURL() . 'dev/build?returnURL=' . (isset($_GET['url']) ? urlencode($_GET['url']) : null));
$this->popCurrent();
return $this->response;
}
try {
$result = $this->getNestedController();
if($result instanceof RequestHandler) {
$result = $result->handleRequest($this->request, $model);
} else if(!($result instanceof SS_HTTPResponse)) {
user_error("ModelAsController::getNestedController() returned bad object type '" .
get_class($result)."'", E_USER_WARNING);
}
} catch(SS_HTTPResponse_Exception $responseException) {
$result = $responseException->getResponse();
}
$this->popCurrent();
return $result;
}
/**
* @return ContentController
*/
public function getNestedController() {
$request = $this->request;
if(!$URLSegment = $request->param('URLSegment')) {
throw new Exception('ModelAsController->getNestedController(): was not passed a URLSegment value.');
}
// Find page by link, regardless of current locale settings
if(class_exists('Translatable')) Translatable::disable_locale_filter();
$sitetree = DataObject::get_one(
'SiteTree',
sprintf(
'"URLSegment" = \'%s\' %s',
Convert::raw2sql(rawurlencode($URLSegment)),
(SiteTree::nested_urls() ? 'AND "ParentID" = 0' : null)
)
);
if(class_exists('Translatable')) Translatable::enable_locale_filter();
if(!$sitetree) {
// If a root page has been renamed, redirect to the new location.
// See ContentController->handleRequest() for similiar logic.
$redirect = self::find_old_page($URLSegment);
if($redirect) {
$params = $request->getVars();
if(isset($params['url'])) unset($params['url']);
$this->response = new SS_HTTPResponse();
$this->response->redirect(
Controller::join_links(
$redirect->Link(
Controller::join_links(
$request->param('Action'),
$request->param('ID'),
$request->param('OtherID')
)
),
// Needs to be in separate join links to avoid urlencoding
($params) ? '?' . http_build_query($params) : null
),
301
);
return $this->response;
}
$response = ErrorPage::response_for(404);
$this->httpError(404, $response ? $response : 'The requested page could not be found.');
}
// Enforce current locale setting to the loaded SiteTree object
if(class_exists('Translatable') && $sitetree->Locale) Translatable::set_current_locale($sitetree->Locale);
if(isset($_REQUEST['debug'])) {
Debug::message("Using record #$sitetree->ID of type $sitetree->class with link {$sitetree->Link()}");
}
return self::controller_for($sitetree, $this->request->param('Action'));
}
/**
* @param string $URLSegment A subset of the url. i.e in /home/contact/ home and contact are URLSegment.
* @param int $parentID The ID of the parent of the page the URLSegment belongs to.
* @return SiteTree
*/
static public function find_old_page($URLSegment,$parentID = 0, $ignoreNestedURLs = false) {
$URLSegment = Convert::raw2sql(rawurlencode($URLSegment));
$useParentIDFilter = SiteTree::nested_urls() && $parentID;
// First look for a non-nested page that has a unique URLSegment and can be redirected to.
if(SiteTree::nested_urls()) {
$pages = DataObject::get(
'SiteTree',
"\"URLSegment\" = '$URLSegment'" . ($useParentIDFilter ? ' AND "ParentID" = ' . (int)$parentID : '')
);
if($pages && $pages->Count() == 1 && ($page = $pages->First())) {
$parent = $page->ParentID ? $page->Parent() : $page;
if($parent->isPublished()) return $page;
}
}
// Get an old version of a page that has been renamed.
$query = new SQLQuery (
'"RecordID"',
'"SiteTree_versions"',
"\"URLSegment\" = '$URLSegment' AND \"WasPublished\" = 1" . ($useParentIDFilter ? ' AND "ParentID" = ' . (int)$parentID : ''),
'"LastEdited" DESC',
null,
null,
1
);
$record = $query->execute()->first();
if($record && ($oldPage = DataObject::get_by_id('SiteTree', $record['RecordID']))) {
$oldParent = $oldPage->ParentID ? $oldPage->Parent() : $oldPage;
// Run the page through an extra filter to ensure that all extensions are applied.
if(SiteTree::get_by_link($oldPage->RelativeLink()) && $oldParent->isPublished()) return $oldPage;
}
}
}