view db/migrate/048_allow_null_version_effective_date.rb @ 575:724c97fc03dc feature_36

Merge from 573:aed210f6095b.
Fixing small issue when adding new authors.

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