Rails Data Migrations

Migrating a schema when deploying code is a fairly solved problem in Rails, and many other languages/frameworks. What hasn't quite been solved, or at least agreed upon, is the ability to make changes to data based on those migrations. I'm not going to cover the dos, donts, pros and cons of each method as many people before me have covered this in great detail. What I do want to do however, is share a nice simple solution I created for simplifying this process, and making the most out of previous methods.