view db/migrate/048_allow_null_version_effective_date.rb @ 680:65abc6b39292 live

Transfer custom welcome-page code from mainline to bibliography plugin code.
This is far too awkward. We need a better way.

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