The following links might be of help: http://railscasts.com/episodes/355-hacking-with-arel http://railscasts.com/episodes/355-hacking-with-arel http://railsca

The following links might be of help: http://railscasts.com/episodes/355-hacking-with-arel http://railscasts.com/episodes/355-hacking-with-arel http://railscasts.com/episodes/354-squeel http://railscasts.com/episodes/354-squeel http://railscasts.com/episodes/215-advanced-queries-in-rails-3 http://railscasts.com/episodes/215-advanced-queries-in-rails...