1 classes = %w(Call City Province Tag) 2 classes.each do |obj_name| 3   obj = Object.const_get(obj_name) 4   obj.establish_connection :production 5   models = obj.all.to_a 6   obj.establish_connection :development 7   ActiveRecord::Base.transaction do  8     models.each do |model| 9       obj.create(model.attributes)10     end11   end12 end