From: Michael Schuerig <michael@...>
Date: 2009-05-16T05:45:02+09:00
Subject: Re: obj.attr(qualifier) = value -- possible?

Anthony Eden wrote:

> On Fri, May 15, 2009 at 3:55 PM, Michael Schuerig
> <michael@schuerig.de> wrote:
[...]
>> This allows me to write code like
>>
>> movie.participants.as('actor')
>>
>> On top of that, I'd like to be able to write
>>
>> movie.participants.as('actor') = params[:movie][:actors]
>>
>> and that's where I'm stuck.
> 
> If you're willing to use a block you could do
> 
> movie.participants.as('actor') { params[:movie][:actors] }
> 
> and then:
> 
> def as(role, &block)
>   value = yield
> end

Another interesting suggestion. But I think I use

def replace(role, value)
  ...
end

as there's a precedent in the Rails association methods for #replace and 
the generated #replace is not useful in this case anyway.

Michael

-- 
Michael Schuerig
mailto:michael@schuerig.de
http://www.schuerig.de/michael/