annotate db/migrate/048_allow_null_version_effective_date.rb @ 546:7c4b96efa402 feature_36

Closes Feature #240 (adding a new publication from the project's main page).

class AllowNullVersionEffectiveDate < ActiveRecord::Migration
  def self.up
    change_column :versions, :effective_date, :date, :default => nil, :null => true
  end

  def self.down
    raise IrreversibleMigration
  end
end