scheduled tasks on rails

I usually do something pretty simple: I create a class in the vendor
directory, and then setup a cron job to run script\runner with that
file. For example:

I have a file called session_cleaner.rb in \vendor like this:

class SessionCleaner
  CGI::Session::ActiveRecordStore::Session.destroy_all( ['updated_at
< ?', 240.minutes.ago] )
end

Then I have a cron job that runs:

ruby script\runner SessionCleaner -e production

I've also used this method for nightly emails to process new user
signups, etc.

Dave
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