class AddBadgeIdToUsers < ActiveRecord::Migration def change create_table "badges", force: :cascade do |t| t.string "name" t.string "symbol" t.string "color" end Badge.create!({name: "none", symbol: "", color: "#000"}) dbadge = Badge.create!({name: "donor", symbol: "$", color: "#f60"}) add_column :users, :badge_id, :integer, default: 1 User.where(donor: true).update_all(badge_id: dbadge.id) remove_column :users, :donor end end