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view db/migrate/048_allow_null_version_effective_date.rb @ 204:6849e7b210c7 feature_72

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text field for external repo URL
author Luis Figueira <luis.figueira@eecs.qmul.ac.uk>
date Mon, 07 Feb 2011 17:20:02 +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