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view db/migrate/048_allow_null_version_effective_date.rb @ 1094:9b7f99b7cb14 bibplugin_bibtex

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cleaned some code, fixes a couple of issues.
author luisf <luis.figueira@eecs.qmul.ac.uk>
date Wed, 28 Nov 2012 19:32:31 +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