protected function _extend($name, $expiry, $group)
{
if (!$this->enabled) {
return null;
}
Plugins::act('cache_extend_before', $name, $group, $expiry);
if ($this->_has($name, $group)) {
$cache_data = $this->_get($name, $group);
$this->_set(implode(':', array($this->prefix, $group, $name)), $cache_data, time() + $expiry, $group);
}
Plugins::act('cache_extend_after', $name, $group, $expiry);
}