/**
* Clears all partial cache blocks.
*
* Can only be called once per request (there may be multiple SSViewer instances).
*
* @param bool $force Set this to true to force a re-flush. If left to false, flushing
* may only be performed once a request.
*/
public static function flush_cacheblock_cache($force = false)
{
if (!self::$cacheblock_cache_flushed || $force) {
$cache = SS_Cache::factory('cacheblock');
$backend = $cache->getBackend();
if ($backend instanceof Zend_Cache_Backend_ExtendedInterface && ($capabilities = $backend->getCapabilities()) && $capabilities['tags']) {
$cache->clean(Zend_Cache::CLEANING_MODE_MATCHING_TAG, $cache->getTags());
} else {
$cache->clean(Zend_Cache::CLEANING_MODE_ALL);
}
self::$cacheblock_cache_flushed = true;
}
}