Could we deprecate nested attributes?

[justinfrench]

One of the features I most disagreed with in Rails and regret in Formtastic is nested attributes. I believe they create complex coupling between the form and it's underlying models that's unnecessary.

Best practice is to build a "presenter" model that presents the multiple underlying models as one for the purposes of the controllers and views, so I feel this should be encouraged and eventually enforced in Formtastic.

Before this, we would need to provide a really solid example (perhaps a "model" that can be inherited from, if no suitable libraries exist?).

[twalpole]

My issue with this is that every beginning rails tutorial uses nested attributes, so not supporting them is going to open a bunch of "why no support for nested attributes?" issues. If rails deprecated support for it in say strong parameters,then I'd say fine, but as it is I vote for keeping the support in formtastic.