Fix missing transaction constants in Phame

Summary: Trailing logs for errors here, picked up some unset constants in Phame.

Test Plan: New Blog, New Post, tail daemon log for errors. See feed stories.

Reviewers: epriestley, amckinley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D17871