Nette\Database\Table\Selection::getGeneralCacheKey PHP Метод

    protected function getGeneralCacheKey()
    {
        if ($this->generalCacheKey) {
            return $this->generalCacheKey;
        }
        $key = [__CLASS__, $this->name, $this->sqlBuilder->getConditions()];
        $trace = [];
        foreach (debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS) as $item) {
            $trace[] = isset($item['file'], $item['line']) ? $item['file'] . $item['line'] : NULL;
        }
        $key[] = $trace;
        return $this->generalCacheKey = md5(serialize($key));
    }