From: ghazel@...
Date: 2011-01-20T18:35:04+09:00
Subject: [ruby-core:34651] Re: Ruby operator equivalent to Groovy's "?."

On Thu, Jan 20, 2011 at 1:13 AM, Jonas Pfenniger (zimbatm)
<jonas@pfenniger.name> wrote:
> 2011/1/20 "Martin J. D��rst" <duerst@it.aoyama.ac.jp>:
>> I have definitely had cases where such a feature would have been very handy.
>> I don't think it's worth a special syntax, but having a dedicated method in
>> Ruby core, even if the name is longer than two letters, would be very
>> helpful.
>
> You need the syntax to cut trough the chain. Otherwise, all methods
> would get called in any case, and you'd need to implement a fake
> object to respond to these.

Have you all seen try?

https://github.com/rails/rails/blob/master/activesupport/lib/active_support/core_ext/object/try.rb

You can do:

obj.try(:somePropertyName).try(:anotherGreatPropertyName).try(:anotherOne)

-Greg