-require 'migrate'
-
-class AddChangesets < ActiveRecord::Migration
- @@conv_user_tables = ['current_nodes',
- 'current_relations', 'current_ways', 'nodes', 'relations', 'ways' ]
+class AddChangesets < ActiveRecord::Migration[4.2]
+ @conv_user_tables = %w[current_nodes current_relations current_ways nodes relations ways]