redmine/db/migrate/023_add_tracker_is_in_roadmap.rb

class AddTrackerIsInRoadmap < ActiveRecord::Migration[4.2]
  def self.up
    add_column :trackers, :is_in_roadmap, :boolean, :default => true, :null => false
  end

  def self.down
    remove_column :trackers, :is_in_roadmap
  end
end