dwbutler/groupify

module Groupify
  module ActiveRecord
    module NextMigrationVersion
      # while methods have moved around this has been the implementation
      # since ActiveRecord 3.0
      def next_migration_number(dirname)
        next_migration_number = current_migration_number(dirname) + 1
        if ActiveRecord::Base.timestamped_migrations
          [Time.now.utc.strftime("%Y%m%d%H%M%S"), format("%.14d", next_migration_number)].max
        else
          format("%.3d", next_migration_number)
        end
      end
    end
  end
end