TYPO3\CMS\Install\Service\ClearCacheService Class Reference

Public Member Functions
	__construct (LateBootService $lateBootService, FrontendInterface $dependencyInjectionCache)
	clearAll ()

Private Member Functions
	flushCaches (array $cacheConfiguration)

Private Attributes
const	legacyDatabaseCacheTables
LateBootService	$lateBootService
FrontendInterface	$dependencyInjectionCache

Detailed Description

Basic service to clear caches within the install tool.

This is NOT an API class, it is for internal use in the install tool only.

Definition at line 28 of file ClearCacheService.php.

Constructor & Destructor Documentation

__construct()

TYPO3\CMS\Install\Service\ClearCacheService::__construct	(	LateBootService	$lateBootService,
		FrontendInterface	$dependencyInjectionCache
	)

Definition at line 42 of file ClearCacheService.php.

References TYPO3\CMS\Install\Service\ClearCacheService\$dependencyInjectionCache, and TYPO3\CMS\Install\Service\ClearCacheService\$lateBootService.

Member Function Documentation

clearAll()

TYPO3\CMS\Install\Service\ClearCacheService::clearAll

(

)

This clear cache implementation follows a pretty brutal approach. Goal is to reliably get rid of cache entries, even if some broken extension is loaded that would kill the backend 'clear cache' action.

Therefore this method "knows" implementation details of the cache framework and uses them to clear all file based cache (typo3temp/Cache) and database caches (tables prefixed with cf_) manually.

After that ext_tables and ext_localconf of extensions are loaded, those may register additional caches in the caching framework with different backend, and will then clear them with the usual flush() method.

Definition at line 63 of file ClearCacheService.php.

References $GLOBALS, and TYPO3\CMS\Install\Service\ClearCacheService\flushCaches().

flushCaches()

TYPO3\CMS\Install\Service\ClearCacheService::flushCaches ( array  $cacheConfiguration )

private

The cache manager is already instantiated in the install tool (both in the failsafe and the late boot container), but with settings to disable caching (all caches using NullBackend). We want a "fresh" object here to operate with the really configured cache backends. CacheManager implements SingletonInterface, so the only way to get a "fresh" instance is by circumventing makeInstance and using new directly!

Parameters

array

$cacheConfiguration

Definition at line 105 of file ClearCacheService.php.

Referenced by TYPO3\CMS\Install\Service\ClearCacheService\clearAll().

Member Data Documentation

$dependencyInjectionCache

FrontendInterface TYPO3\CMS\Install\Service\ClearCacheService::$dependencyInjectionCache

private

Definition at line 40 of file ClearCacheService.php.

Referenced by TYPO3\CMS\Install\Service\ClearCacheService\__construct().

$lateBootService

LateBootService TYPO3\CMS\Install\Service\ClearCacheService::$lateBootService

private

Definition at line 36 of file ClearCacheService.php.

Referenced by TYPO3\CMS\Install\Service\ClearCacheService\__construct().

legacyDatabaseCacheTables

const TYPO3\CMS\Install\Service\ClearCacheService::legacyDatabaseCacheTables

private

Initial value:

= [
        'cache_treelist',
    ]

Definition at line 30 of file ClearCacheService.php.