Rails 3 RC: SimpleForm::FormBuilder#association calling undefined method 'returning'

[iabbott]

Rails 3 RC has without warning or fallback support dropped support for Object#returning. It's been replaced by Object#tap. No deprecation notices, just a quick comment in the CHANGELOG (one of many Beta to RC changes that has been sudden without any form of migration; e.g. config.autoload_paths....)

As a result, any f.association calls throw ActionView::Template::Error

[josevalim]

Hi, my name is José Valim and I'm from Rails Core team. :)

I will fix SimpleForm, but about Rails, until yesterday, we had a beta version. This means we are still allowed to do changes, big or small. Notice that we added however, deprecations to 2-3-stable, which is the path most people will follow (from 2-3-stable to Rails 3 final).

The Rakefile changes and config.autoload_paths were added to the CHANGELOG, but not returning one. I will fix it as well, thanks.

[josevalim]

Ops, it seems that all three changes are listed in the CHANGELOG, so nothing to fix there. Now fixing simple_form. :)

[iabbott]

Sorry about that, don't mean to grumble so much - the Rails team is doing a lot of good work and it's nice to see an RC out. My own fault for hopping on board early, but DHH did say it was time to start migrating :D Here's hoping final release is sooner rather than later as the changes from Rails 2 are great so far.

[josevalim]

Ok! Rest assured that such changes must not happen from now on.