/**
* Main execute action.
*
* @param PageRequest $pageRequest
* @return \Symfony\Component\HttpFoundation\Response
* @throws ResourceNotFoundException when requested page not found / not active
* @throws LayoutNotFound when template layout not found
* @throws \UnexpectedValueException
*/
public function execute(PageRequest $pageRequest)
{
$this->pageRequest = $pageRequest;
$this->pageResponse = $this->createPageResponse();
$localization = $pageRequest->getLocalization();
if (!$localization instanceof Localization) {
throw new \UnexpectedValueException(sprintf('Expecting Localization object only [%s] received.', get_class($localization)));
}
if ($pageRequest instanceof PageRequestView && $localization instanceof PageLocalization && $localization->hasRedirectTarget()) {
$redirectUrl = $localization->getRedirectTarget()->getRedirectUrl();
if (!empty($redirectUrl)) {
//@TODO: check for redirect loops
return new RedirectResponse($redirectUrl);
}
throw new ResourceNotFoundException();
}
$layout = $pageRequest->getLayout();
if ($layout === null) {
throw new LayoutNotFound(sprintf('No layout found for page localization [%s]', $localization->getId()));
}
$templating = $this->container->getTemplating();
if ($templating instanceof TwigTemplating) {
$templating->getExtension('supraPage')->setPageExecutionContext(new PageExecutionContext($this->pageRequest, $this));
}
// searching for blocks cache
$this->findBlockCache();
// searching and instantiating controllers
$this->findBlockControllers();
// prepare controllers
$this->prepareBlockControllers();
// some of the block cache may be context-dependent
// and as context may change after preparing we're searching for cache again
$this->findContextDependentBlockCache();
// execute controllers
$this->executeBlockControllers();
// stores cache
$this->cacheBlockResponses();
// create placeholder responses, process page layout
$this->getLayoutProcessor()->process($layout->getFilename(), $this->pageResponse, $this->createPlaceResponses());
return $this->pageResponse;
}
