TYPO3 Core

Hi!

Thanks for you findings. This is indeed very interesting.

You can add the button for clearing the system cache via user TSconfig.

Yes, I added the option for my admin user:
options.clearCache.system = 1

But I need to remember to set this for every new TYPO3 installation and it's confusing that "all caches" does not clear all caches.

Where does it say "all caches"? The name of the cache group is "all" and that's not so good.

Why do you need to add this for every installation?
While setting up a site you're probably in dev-context, so the button is there.
Once the site goes live, you most probably will not touch things that affect the system cache.

Oh, it did not say "all caches". Just the caching group is named "all".

Our staging servers also do not run in dev-context to test the site with production settings. Also after the site goes live, there might be some changes afterwards. To make sure these work correctly, I now have to clear two caches instead of one after I perform a code update of an extension. To be able to clear both caches I need to add this TSconfig setting to every installation or the button is not there.

I will probably update our scaffolding scripts to do that.

Philipp Gampe wrote:

And of course you can add the system caches to the all group to have them cleared on all.

How do I add the system caches to the all group?

I tried the following code snippet in AdditionalConfiguration.php and in ext_localconf.php of my extension:

foreach ($GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations'] as $key => &$data) {
    if (in_array('system', $data['groups']) && !in_array('all', $data['groups'])) {
        $data['groups'][] = 'all';
    }
}

$cacheManager = GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\Cache\\CacheManager');
$cacheManager->setCacheConfigurations($GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']);

Both times the caching group all does not contain all system caches. The cache manager only adds the cache identifier to a cacheGroup during creation of the cache:
https://git.typo3.org/Packages/TYPO3.CMS.git/blob/30b091ae307f55581e7e1418891d0e81cf85ccee:/typo3/sysext/core/Classes/Cache/CacheManager.php#l390

If I change the cachingConfiguration AFTER a cache has been created, the caching group is not updated, when I call setCacheConfigurations.

But in AdditionalConfiguration, not all cacheConfigurations are available. Only the following 11 are available:
- cache_core
- cache_classes
- cache_hash
- cache_pages
- cache_pagesection
- cache_phpcode
- cache_runtime
- cache_rootline
- l10n
- extbase_object
- extbase_reflection

In ext_localconf.php the following are available:
- cache_core
- cache_classes
- cache_hash
- cache_pages
- cache_pagesection
- cache_phpcode
- cache_runtime
- cache_rootline
- l10n
- extbase_object
- extbase_reflection
- extbase_typo3dbbackend_tablecolumns
- extbase_typo3dbbackend_queries
- extbase_datamapfactory_datamap
- fluid_template

But cache_core and cache_classes are already created. So changing the caching configuration for them does not add them to the all group. To add all system caches to the all group, I need to run the code snippet in AdditionalConfiguration.php AND in ext_localconf.php or am I missing some easier way?

Maybe this is related somehow: #54498

Just a note: This inconsistency got fixed with #75844