# This migration comes from spree (originally 20130329134939) class RemoveStockItemAndVariantLock < ActiveRecord::Migration def up # we are moving to pessimistic locking on stock_items remove_column :spree_stock_items, :lock_version # variants no longer manage their count_on_hand so we are removing their lock remove_column :spree_variants, :lock_version end def down add_column :spree_stock_items, :lock_version, :integer add_column :spree_variants, :lock_version, :integer end end