labeled_form_builder.rb

class LabeledFormBuilder < ActionView::Helpers::FormBuilder
  %w[text_field password_field select file_field text_area].each do |method_name|
    define_method(method_name) do |field_name, *args|
      content = ''
      error = object.errors.on(field_name)
      row_classes = 'form-row'
      row_classes += ' error' unless error.blank?
      label_classes = 'form-label'
      label_classes += ' align' if %w|file_field select|.include?(method_name)
      content += @template.content_tag(:div, :class => row_classes) do
        inner = @template.content_tag(:div, :class => label_classes) do
          field_label(field_name, *args)
        end
        inner += @template.content_tag(:div, :class => 'form-field') do
          # Error: super called outside of method
          super(field_name, *args) + modifier_text(*args)
        end
        inner += form_comment(*args)
        inner += field_error(field_name)
        inner
      end
      content
    end
  end
end