Next/Previous record?

rubyonrails-talk
1

This is how I did it for one recent client:

   def self.prior_to id      find(:first, :conditions => ["#{primary_key} < ?", id], :order => "#{primary_key} DESC") ||        find(:first, :conditions => ["#{primary_key} >= ?", id], :order => "#{primary_key}")    end

   def self.next_after id      find(:first, :conditions => ["#{primary_key} > ?", id], :order => "#{primary_key}") ||        find(:first, :conditions => ["#{primary_key} <= ?", id], :order => "#{primary_key} DESC")    end

-Rob

Rob Biedenharn http://agileconsultingllc.com Rob@AgileConsultingLLC.com