def merge!(errors)
      if errors
        errors.each_pair do |field, messages|
          messages.each do |message|
            add(field, message)
          end
        end
      end
    end
def merge!(errors)
      if errors
        errors.each_pair do |field, messages|
          messages.each do |message|
            add(field, message)
          end
        end
      end
    end
Merge another set of errors in