rails form formatting for twitter bootstrap #4

boot_strap_form_builder.rb

# ./app/helpers/boot_strap_form_builder.rb

class BootStrapFormBuilder < ActionView::Helpers::FormBuilder

  def text_field(method, options={})
    t = @template
    t.content_tag(:div, :class => "clearfix#{' error' unless @object.errors[method].blank?}") {
      t.concat(t.label_tag method)
      t.concat(t.content_tag(:div, :class => "input#{' error' unless @object.errors[method].blank?}") {
        t.concat(super method)
        if @object.errors[method].present?
          t.concat(t.content_tag(:span, options[:help_text], :class => 'help-inline'))
        end
      })
    }
  end

end