ShouldUseCachedPageDataIfAvailableEvent
The PSR-14 event
\TYPO3\
allows TYPO3 extensions to register event listeners to modify if a
page should be read from cache (if it has been created in store already), or
if it should be re-built completely ignoring the cache entry for the request.
This event can be used to avoid loading from the cache when indexing via CLI happens from an external source, or if the cache should be ignored when logged in from a certain IP address.
Example
EXT:my_extension/Classes/Frontend/EventListener/MyEventListener.php
<?php
declare(strict_types=1);
namespace MyVendor\MyExtension\Frontend\EventListener;
use TYPO3\CMS\Core\Attribute\AsEventListener;
use TYPO3\CMS\Frontend\Event\ShouldUseCachedPageDataIfAvailableEvent;
#[AsEventListener(
identifier: 'my-extension/avoid-cache-loading',
)]
final readonly class MyEventListener
{
public function __invoke(ShouldUseCachedPageDataIfAvailableEvent $event): void
{
if (!($event->getRequest()->getServerParams()['X-SolR-API'] ?? null)) {
return;
}
$event->setShouldUseCachedPageData(false);
}
}
API
- class ShouldUseCachedPageDataIfAvailableEvent
-
- Fully qualified name
-
\TYPO3\
CMS\ Frontend\ Event\ Should Use Cached Page Data If Available Event
Event to allow listeners to disable the loading of cached page data when a page is requested.
Does not have any effect if caching is disabled, or if there is no cached version of a page.