From: Robert Klemme <shortcutter@...>
Date: 2007-07-19T17:27:42+09:00
Subject: Re: array sort_by with nil elements

2007/7/19, Josselin <josselin@wanadoo.fr>:
> I am using the sort_by command
>
> @buddies = @user.buddies.compact.sort_by {|item| item.send @criteria}
>
>
> problem arise when one criteria like the user.name is nil  the sort
> crash....  anyway to avoid it

Add a rescue modifier.

@buddies = @user.buddies.compact.sort_by {|item| item.send @criteria rescue nil}

Kind regards

robert