关于cakephpmodel的有关问题

关于cakephp model的问题
数据结构如下:

Array
(
[Test] => Array
(
[id] => 5
[start_time] =>
[end_time] =>
[date] => 0000-00-00
[title] => Array
(
[en_us] => title_test
[zh_hk] => zh_hk_test
[zh_cn] => zh_cn_test
)

[url] => Array
(
[en_us] => url_test
[zh_hk] => url_test_zh_hk
[zh_cn] => url_test_zh_cn
)

[ready] => 1
[modified_by] => 1
)
)

saveAll的时候，如何只将zh_hk的值保存到title和url字段中？谢谢

------解决方案--------------------
保存什么不是你决定的吗？