ModifyCacheLifetimeForPageEvent¶

New in version 12.0

This event serves as a successor for the $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_fe.php']['get_cache_timeout'] hook.

This event allows to modify the lifetime of how long a rendered page of a frontend call should be stored in the "pages" cache.

Example¶

Register the listener:

EXT:my_extension/Configuration/Services.yaml

services:
  # Place here the default dependency injection configuration

  MyVendor\MyExtension\Frontend\EventListener\MyEventListener:
    tags:
      - name: event.listener
        identifier: 'my-extension/cache-timeout'

Read how to configure dependency injection in extensions.

The following listener limits the cache lifetime to 30 seconds in development context:

EXT:my_extension/Classes/Frontend/EventListener/MyEventListener.php

<?php

declare(strict_types=1);

namespace MyVendor\MyExtension\Frontend\EventListener;

use TYPO3\CMS\Core\Core\Environment;
use TYPO3\CMS\Frontend\Event\ModifyCacheLifetimeForPageEvent;

final class MyEventListener
{
    public function __invoke(ModifyCacheLifetimeForPageEvent $event): void
    {
        // Only cache all pages for 30 seconds when in development context
        if (Environment::getContext()->isDevelopment()) {
            $event->setCacheLifetime(30);
        }
    }
}

API¶

class \TYPO3\CMS\Frontend\Event\ ModifyCacheLifetimeForPageEvent¶

Event to allow listeners to modify the amount of seconds that a generated frontend page should be cached in the "pages" cache when initially generated.

setCacheLifetime ( int $cacheLifetime) ¶

param int $cacheLifetime: the cacheLifetime

getCacheLifetime ( ) ¶

returntype: int

getPageId ( ) ¶

returntype: int

getPageRecord ( ) ¶

returntype: array

getRenderingInstructions ( ) ¶

returntype: array

getContext ( ) ¶

returntype: TYPO3\CMS\Core\Context\Context