From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2009-01-15T01:11:11+09:00
Subject: Re: a beginner case question

On Wed, Jan 14, 2009 at 4:56 PM, Taylor Strait <taylorstrait@gmail.com> wrote:
> I am using case in to determine the sorting method used for an array as
> so:

>  This does not because of the return statements.  However, I need to
> reverse the result for those two options.  How can I do this with case
> statements?  Or must I use if..elsif?

You can do this:

 def single_choice(object)

    # sort answer order based on question.list_method
    answers = object.answers

    sorted_answers = case object.list_method
      when 'position' then answers.sort_by {|answer| answer.position}
      when 'random' then answers.sort_by {rand}
      when 'alphabetical' then answers.sort_by {|answer| answer.text}
      when 'reverse_alpha' then answers.sort_by {|answer| answer.text}.reverse
      when 'shortest_first' then answers.sort_by {|answer| answer.text.length}
      when 'longest_first' then answers.sort_by {|answer|
answer.text.length}.reverse
    end
end

Jesus.