I did not package an "official" ORM with Revel because I did not feel like there was a clear choice yet. (And making an ORM is too big a challenge to bite off in addition :)

I think that GORP is the current leader (https://github.com/coopernurse/gorp), and it is pretty easy to make a plugin/interceptor that initializes it and starts/ends transactions before / after requests.

I am planning on adding an example of this to the samples in the near future.