view db/migrate/072_add_enumerations_position.rb @ 1017:63f8c4f2cf67 bibplugin_bibtex_display

Shows the publication list as IEEE formatted entries; Adds 2 links, one for the publication details and another for to show the publication details as bibtex.

class AddEnumerationsPosition < ActiveRecord::Migration
  def self.up
    add_column(:enumerations, :position, :integer, :default => 1) unless Enumeration.column_names.include?('position')
    Enumeration.find(:all).group_by(&:opt).each do |opt, enums|
      enums.each_with_index do |enum, i|
        # do not call model callbacks
        Enumeration.update_all "position = #{i+1}", {:id => enum.id}
      end
    end
  end

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