/**
* Saves tracked cached data and clears expired cache
*
* @return boolean true if data saved, false if no caches defined
*/
public static function save()
{
if (empty(self::$_cache)) {
return false;
}
foreach (self::$_cached_keys as $key => $arg) {
if (isset(self::$_storage[$key]) && $arg['track'] == true) {
self::_saveCache($key, self::$_storage[$key]);
}
}
self::$_cached_keys = array();
if (self::$_cache_handlers_are_updated == true) {
self::$_cache->saveHandlers(self::$_cache_handlers);
self::$_cache_handlers_are_updated = false;
}
// Get tags to clear expired cache
if (!empty(self::$_changed_tables)) {
$tags = array();
foreach (self::$_changed_tables as $table => $flag) {
if (!empty(self::$_cache_handlers[$table])) {
$tags = array_merge($tags, array_keys(self::$_cache_handlers[$table]));
}
}
foreach ($tags as $tag) {
self::del($tag);
}
self::$_cache->clear($tags);
self::$_changed_tables = array();
}
return true;
}
/**
* Saves tracked cached data and clears expired cache
*
* @return boolean true if data saved, false if no caches defined
*/
public static function save()
{
/**
* Hook is being executed before saving cache data to persistent storage and clearing expired cache.
*
* @param array $changed_tables List of DB tables that were modified at the runtime.
* @param array $cached_keys List of registered cache keys.
*/
fn_set_hook('registry_save_pre', self::$_changed_tables, self::$_cached_keys);
if (empty(self::$_cache)) {
return false;
}
foreach (self::$_cached_keys as $key => $arg) {
if (isset(self::$_storage[$key]) && $arg['track'] == true) {
self::_saveCache($key, self::$_storage[$key]);
}
}
self::$_cached_keys = array();
if (self::$_cache_handlers_are_updated == true) {
self::$_cache->saveHandlers(self::$_cache_handlers);
self::$_cache_handlers_are_updated = false;
}
// Get tags to clear expired cache
if (!empty(self::$_changed_tables)) {
$tags = array();
foreach (self::$_changed_tables as $table => $flag) {
if (!empty(self::$_cache_handlers[$table])) {
$tags = array_merge($tags, array_keys(self::$_cache_handlers[$table]));
}
}
foreach ($tags as $tag) {
self::del($tag);
}
self::$_cache->clear($tags);
self::$_changed_tables = array();
}
return true;
}
