Chris@0: class PopulateChangesetsUserId < ActiveRecord::Migration
Chris@0:   def self.up
Chris@0:     committers = Changeset.connection.select_values("SELECT DISTINCT committer FROM #{Changeset.table_name}")
Chris@0:     committers.each do |committer|
Chris@0:       next if committer.blank?
Chris@0:       if committer.strip =~ /^([^<]+)(<(.*)>)?$/
Chris@0:         username, email = $1.strip, $3
Chris@0:         u = User.find_by_login(username)
Chris@0:         u ||= User.find_by_mail(email) unless email.blank?
Chris@0:         Changeset.update_all("user_id = #{u.id}", ["committer = ?", committer]) unless u.nil?
Chris@0:       end
Chris@0:     end
Chris@0:   end
Chris@0: 
Chris@0:   def self.down
Chris@0:     Changeset.update_all('user_id = NULL')
Chris@0:   end
Chris@0: end