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.

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)

Parameters

• $cacheLifetime (int) -- the cacheLifetime

getCacheLifetime()

Return type

int

getPageId()

Return type

int

getPageRecord()

Return type

array

getRenderingInstructions()

Return type

array

getContext()

Return type

TYPO3\CMS\Core\Context\Context

Example

Register the listener:

my_extension/Configuration/Services.yaml

services:
  MyCompany\MyPackage\EventListener\ChangeCacheTimeout:
    tags:
      - name: event.listener
        identifier: 'mycompany/myextension/cache-timeout'

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

my_extension/EventListener/ChangeCacheTimeout.php

namespace MyCompany\MyExtension\EventListener;
use TYPO3\CMS\Frontend\Event\ModifyCacheLifetimeForPageEvent;

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