view db/migrate/.svn/text-base/021_add_tracker_position.rb.svn-base @ 394:7ba3ba2a0f63 feature_135

Make the Research Description description more descriptive (see #135)

class AddTrackerPosition < ActiveRecord::Migration
  def self.up
    add_column :trackers, :position, :integer, :default => 1
    Tracker.find(:all).each_with_index {|tracker, i| tracker.update_attribute(:position, i+1)}
  end

  def self.down
    remove_column :trackers, :position
  end
end