I encountered this very issue a few years ago, basically your queue picking up jobs before the database commits. I solved this by actually queuing up my jobs to a thread-local queue and then firing the whole spool at the end of the request (in an around_filter, so you fire the spool after the yield to the action). This means that you actually fire your jobs after the request has done its whole database commit. This can all be done without having to leak abstractions and make the model layer know about the presence or lack of the fake queue.

Let me know if anyone is interested and I can share some code.