Observer for the move method?

[danFWD]

Hello. I wrote a custom path generator when I started my project, then further into the project, realized I was generating N1+1 queries every time I used ->getUrl(). This was due to the fact I was doing a query on the media item each time to find the parent model, and then constructing the path using various attributes of said model.

My solution to this problem was to cache the generated path in the custom property of each media item the first time ->getUrl is called.

My question is, is there a way to observe the “move” or ”moved” event so I can erase the old stored path?