gitlab-org--gitlab-foss/db/migrate/20170328010804_add_uuid_to_application_settings.rb

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class AddUuidToApplicationSettings < ActiveRecord::Migration[4.2]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
def up
add_column :application_settings, :uuid, :string
execute("UPDATE application_settings SET uuid = #{quote(SecureRandom.uuid)}")
end
def down
remove_column :application_settings, :uuid
end
end