annotate db/migrate/.svn/text-base/048_allow_null_version_effective_date.rb.svn-base @ 471:49fb7a9ef79c feature_36

Using Authorships instead of Authors in the new/show actions of the publication controller.

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