public function save($file, $data, $ttl)
	{
		$cacheHash = $this->getCacheHash($file);
		if($this->fs->write($this->getMetaFilePath($file), json_encode($data))) {
			if ($this->f3->get('CACHE')) {
				$cache = \Cache::instance();
				if ($ttl)
					$cache->set($cacheHash, $data, $ttl);
				elseif ($cache->exists($cacheHash))
					$cache->clear($cacheHash);
			}
			$this->data = $data;
			return true;
		} else return false;
	}