From: Eric Hodel <drbrain@...7.net>
Date: 2004-12-04T04:01:55+09:00
Subject: Re: Multiple Ensure Blocks

On 03 Dec 2004, at 10:08, Graham Jenkins wrote:

> I know that the Ruby Way is probably to nest separate blocks for each
> of these resources
>
>     Database.use { |dbh|
>         Request.use { |req|
>             Session.use { |ses|
>                 ...
>                 # my code here
>             }
>         }
>     }
>
> but I end up nesting the real code about 10 layers deep if I do that.

Make a wrapper:

class Session
   def self.environment
	Database.use do |dbh|
	  Request.use do |req|
		Session.use do |ses|
		  yield dbh, req, ses
		end
	  end
	end
   end
end

Session.environment do |dbh, req, ses|
end