view db/migrate/.svn/text-base/020_add_role_position.rb.svn-base @ 479:7be2c5d9ffa5 feature_36

correctly saving ONE authorship model when creating new publication.

class AddRolePosition < ActiveRecord::Migration
  def self.up
    add_column :roles, :position, :integer, :default => 1
    Role.find(:all).each_with_index {|role, i| role.update_attribute(:position, i+1)}
  end

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