/**
* 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::flushDirectory(PATH_site . 'typo3temp/var/Cache', true, true);
$bootstrap = \TYPO3\CMS\Core\Core\Bootstrap::getInstance();
$bootstrap->initializeCachingFramework()->initializePackageManagement(\TYPO3\CMS\Core\Package\PackageManager::class);
// Get all table names from Default connection starting with 'cf_' and truncate them
$connectionPool = GeneralUtility::makeInstance(ConnectionPool::class);
$connection = $connectionPool->getConnectionByName('Default');
$tables = $connection->getSchemaManager()->listTables();
foreach ($tables as $table) {
if (strpos($table->getName(), 'cf_') === 0 || $table->getName() === 'cache_treelist') {
$connection->truncate($table->getName());
}
}
// check tables on other connections
$remappedTables = isset($GLOBALS['TYPO3_CONF_VARS']['DB']['TableMapping']) ? array_keys((array) $GLOBALS['TYPO3_CONF_VARS']['DB']['TableMapping']) : [];
foreach ($remappedTables as $tableName) {
if (strpos((string) $tableName, 'cf_') === 0 || $tableName === 'cache_treelist') {
$connectionPool->getConnectionForTable($tableName)->truncate($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)->defineLoggingAndExceptionConstants()->unsetReservedGlobalVariables()->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']);
$cacheManager->flushCaches();
}
/**
* 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::flushDirectory(PATH_site . 'typo3temp/var/Cache', true, true);
$bootstrap = \TYPO3\CMS\Core\Core\Bootstrap::getInstance();
$bootstrap->initializeCachingFramework()->initializePackageManagement(\TYPO3\CMS\Core\Package\PackageManager::class);
// 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);
} elseif ($tableName === 'cache_treelist') {
// cache_treelist is not implemented in the caching framework.
// clear this table manually
$database->exec_TRUNCATEquery('cache_treelist');
}
}
// 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)->defineLoggingAndExceptionConstants()->unsetReservedGlobalVariables()->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();
}
/**
* Clear all caches.
*
* @param bool $hard
* @return void
*/
public function clearAllCaches($hard = FALSE)
{
if (!$hard) {
$this->dataHandler->clear_cacheCmd('all');
} else {
GeneralUtility::rmdir(PATH_site . 'typo3temp/Cache', TRUE);
$cacheManager = new \TYPO3\CMS\Core\Cache\CacheManager();
$cacheManager->setCacheConfigurations($GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']);
new \TYPO3\CMS\Core\Cache\CacheFactory('production', $cacheManager);
$cacheManager->flushCaches();
}
}
/**
* @test
*/
public function flushCachesCallsTheFlushMethodOfAllRegisteredCaches()
{
$manager = new \TYPO3\CMS\Core\Cache\CacheManager();
$cache1 = $this->getMock('TYPO3\\CMS\\Core\\Cache\\Frontend\\AbstractFrontend', array('getIdentifier', 'set', 'get', 'getByTag', 'has', 'remove', 'flush', 'flushByTag'), array(), '', FALSE);
$cache1->expects($this->atLeastOnce())->method('getIdentifier')->will($this->returnValue('cache1'));
$cache1->expects($this->once())->method('flush');
$manager->registerCache($cache1);
$cache2 = $this->getMock('TYPO3\\CMS\\Core\\Cache\\Frontend\\AbstractFrontend', array('getIdentifier', 'set', 'get', 'getByTag', 'has', 'remove', 'flush', 'flushByTag'), array(), '', FALSE);
$cache2->expects($this->once())->method('flush');
$manager->registerCache($cache2);
$manager->flushCaches();
}