redmine/db/migrate/058_add_issue_categories_assigned_to_id.rb

class AddIssueCategoriesAssignedToId < ActiveRecord::Migration[4.2]
  def self.up
    add_column :issue_categories, :assigned_to_id, :integer
  end

  def self.down
    remove_column :issue_categories, :assigned_to_id
  end
end