view db/migrate/048_allow_null_version_effective_date.rb @ 180:3a353bd04976 feature_20

* Stylesheet for Doxygen, and some generation fixes
author Chris Cannam <chris.cannam@soundsoftware.ac.uk>
date Thu, 03 Feb 2011 11:07:55 +0000
parents 513646585e45
children
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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