Scripting and metadata field question

Question

I'm trying to set up a subscription response, that is triggered on a check box which adds all of a FCP project's element's Master Assests to it's member productions. I.E. FCP project "A" which contains elements 1,2&3 and resides in Production "Z", will have the master assets 1,2&3 added to production Z when metadata field "Add Assests" is checked.
My questions are these:
1) How do I create a metadata field with just a check box (this a very basic questions, but so far I've only been able to get a "TRUE/FALSE" boolean, which works, but isn't as nice as a check box.
2) My approach to accomplishing this is a bit more convoluted than I think is necessary, it is thus:
-Use subscription to write XML.
-get AssetID for Project from XML
-Use fcsvr_client listparentlinks /Asset/ID(from above) | grep out the element ids
-use fcsvr_client listchildlinks /element/ID(from above) --linktype 12 | grep out the Asset ID for each of the elements listed in step 3
-use fcsvr_client listchildlinks /Asset/ID(of origional FCP project) --linktype 1 | grep put the project ID for each of the member projects
-use fcsvr_client make_link --linktype 1 /project/(ID from above) /asset/(each of the master assets for each element in FCP project)
Is this the best approach? Can I add multile assests in one command on the last one? Has anyone already scripted this? Am I missing some automated way to do this in FCSvr already.
Any help would be appreciated.
Thanks.

Answer 1

As to the question of if anyone has scripted this already, I have created a script which pulls all of the element metadata and places it in the associated assets of a Final Cut Pro project. You can check out the video that shows this in detail on the MacHarmony website. To be able to add the assets to a production would be a fairly easy step. The way you are going about it sounds like it should work just fine. We actually go direct to the postgres to improve performance and simplify the creation of tasks such as this, but the WriteXMLs should give you what you need as well.
-- Jason
Jason Perr
MacHarmony