Ruby on Rails

On Mar 1, 4:49 pm, Fearless Fool <li...@ruby-forum.com> wrote:

>
> * (Curiosity:) How did render(... :collection) know about the newly
> created metered_service without an ID?  I know that
> premise.metered_services.build will create a new record, but it appears
> that the new record doesn't appear on the premises.metered_services list
> until it's saved.

build adds the record to the in memory collection
>
> * (Necessity:) Assume the user is looking at
> views/premises/edit.html.erb.  I want a button that says "add
> metered_service to the current premise".  What's the right way to do
> that?  (Clearly, I haven't made friends with form_for() just yet.)
>
There's a railscast covering one possible approach:
http://railscasts.com/episodes/197-nested-model-form-part-2

Fred
> TIA.
>
> - ff
>
> --
> Posted viahttp://www.ruby-forum.com/.

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