/**
* 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.
*
* Therefor 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.
*
* @return void
*/
public function clearAll()
{
// Delete typo3temp/Cache
GeneralUtility::rmdir(PATH_site . 'typo3temp/Cache', TRUE);
$bootstrap = \TYPO3\CMS\Core\Core\Bootstrap::getInstance();
$bootstrap->unregisterClassLoader();
\TYPO3\CMS\Core\Cache\Cache::flagCachingFrameworkForReinitialization();
$bootstrap->initializeClassLoader()->initializeCachingFramework()->initializeClassLoaderCaches()->initializePackageManagement('TYPO3\\CMS\\Core\\Package\\PackageManager');
// Get all table names starting with 'cf_' and truncate them
$database = $this->getDatabaseConnection();
$tables = $database->admin_get_tables();
foreach ($tables as $table) {
$tableName = $table['Name'];
if (substr($tableName, 0, 3) === 'cf_') {
$database->exec_TRUNCATEquery($tableName);
}
}
// From this point on, the code may fatal, if some broken extension is loaded.
// Use bootstrap to load all ext_localconf and ext_tables
$bootstrap->loadTypo3LoadedExtAndExtLocalconf(FALSE)->applyAdditionalConfigurationSettings()->initializeTypo3DbGlobal()->loadExtensionTables(FALSE);
// The cache manager is already instantiated in the install tool
// with some hacked settings to disable caching of extbase and fluid.
// We want a "fresh" object here to operate on a different cache setup.
// cacheManager implements SingletonInterface, so the only way to get a "fresh"
// instance is by circumventing makeInstance and/or the objectManager and
// using new directly!
$cacheManager = new \TYPO3\CMS\Core\Cache\CacheManager();
$cacheManager->setCacheConfigurations($GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']);
// Cache manager needs cache factory. cache factory injects itself to manager in __construct()
new \TYPO3\CMS\Core\Cache\CacheFactory('production', $cacheManager);
$cacheManager->flushCaches();
}
<?php
require_once dirname(__FILE__) . '/../../../../../typo3/sysext/core/Build/UnitTestsBootstrap.php';
$GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['extbase_object'] = array('backend' => 'TYPO3\\CMS\\Core\\Cache\\Backend\\NullBackend', 'options' => array());
\TYPO3\CMS\Core\Cache\Cache::flagCachingFrameworkForReinitialization();
\TYPO3\CMS\Core\Cache\Cache::initializeCachingFramework();
