I'm looking to improve upon Trey's podcasting system by doing the audio upload in Rock. I'm hoping by doing so I can autopopulate the size field and make it a much simpler process.

I'm running into a bit of a brick wall trying to figure out what information is available about uploaded binary files via Lava. So far I've only managed to extract a guid. The debug hasn't been particularly helpful and the strategy for looping over attribute values of an object seems to be coming up blank.

Am I right in thinking Lava doesn't have access to anything more than a guid?