view db/migrate/048_allow_null_version_effective_date.rb @ 749:3f28aebc5fc1 feature_14

started building the project's tag filtering interface.
author luisf <luis.figueira@eecs.qmul.ac.uk>
date Tue, 08 Nov 2011 17:12:52 +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