/** * isCached method * NOTE: Overwrites parent * * @param mixed $template_name * @param int $cache_id * @param int $compile_id * @param mixed $parent * @return mixed */ public function isCached($template = null, $cache_id = null, $compile_id = null, $parent = null) { if (is_null($cache_id) || $cache_id === '') { $cache_id = $this->_global_cache_id; } else { if ($cache_id[0] == '|') { $cache_id = $this->_global_cache_id . $cache_id; } } return parent::isCached($template, $cache_id, $compile_id, $parent); }