bs, there are a few very good serialization gems. ActiveRecord and Hibernate/JPA work a lot better than concatenating your own SQL strings.
If there's something that really doesn't benefit from your model (reports), then you'd fallback to either SQL, or still use ActiveModel + the aggregates
If there's something that really doesn't benefit from your model (reports), then you'd fallback to either SQL, or still use ActiveModel + the aggregates