view db/migrate/.svn/text-base/048_allow_null_version_effective_date.rb.svn-base @ 18:48e89e0a0b7f yuya

* Some stylesheet updates; give main title a distinguishable ID from project title

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