I\'ve been working on a Rails 4.0 application with sqlite (default for Rails development environment) for events (hackathons) which has a parent model, Event, for which ther
Just in case this helps someone. I was doing this on a sqlite dev db, and as mentioned above, it was likely in a wonky state from all my experimental migrations. By deleting the sqlite file, recreating and running all the migrations, it is now fine.