view db/migrate/.svn/text-base/048_allow_null_version_effective_date.rb.svn-base @ 140:4272e09f4b5f cannam-pre-20110113-merge

Allow list of managers, if more than one row, to overlap with description
rather than pushing description down

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