[web-devel] Chris Done on a new pure Haskell pgsql binding and MVC

[Christopher Done]

On 10 June 2011 16:12, Greg Weber <greg at gregweber.info> wrote:
> I would like to come up with a good system for
> maintaining invariants and propagating violations to forms, and other useful
> systems for doing more than just taking the query out of the controller.
> Let us know if there is anything stopping you from separating out code into
> a Models directory right now.

An example of managing invariants and propagating violations to forms?