Add a hook to privatemsg module attachment

Our site uses uploadpath and we are ever so happy with it, since it really keeps our folder structure neat and clean. Currently I am testing the sub-module to upload attachments in the privatemsg module, and reported it does not upload in personal folders.

The answer Berdir gave:

About uploadpath, I just had a short look at the code. They use hook_nodeapi to rename the files so it obviously doesn't work with privatemsg_attachments.

However, they could also add a hook_privatemsg_message_insert and use the same code, they would just need to loop over $message['files'] instead of $node->files. I would suggest to add a feature request to that module when this has been commited. It doesn't really makes sense before.

I don't profess to understand it all, but here I am, asking if it is possible to add this hook and if so, can I help in any way :)

Original discussion: http://drupal.org/node/342733#comment-1336022