view db/migrate/048_allow_null_version_effective_date.rb @ 307:c7d3b58bd01c feature_117

Produce a single en.yml which contains British texts but describes itself as just English.
The difference between en and en-GB is minimal for this application, apart from date formats, and the pain in maintaining both is significant. See #117 and #58.

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