I once wrote something very similar to this as a literal proof-of-concept hack for a form-oriented problem. It's fun to get it to the point where it works for t

I once wrote something very similar to this as a literal proof-of-concept hack for a form-oriented problem. It's fun to get it to the point where it works for the simplified test cases such projects always start out with. But I never used it beyond that proof-of-concept; I still reach for EAV and/or JSON columns when I need to do this sort of thing for production software.