# File lib/Borges/HTML/PluggableSelectBox.rb, line 13
  def render_on(r)
    array = @model.call(@list).to_a

    r.div_class_with('column-choice') do
      r.form do
        r.attributes[:size] = @size
        r.attributes[:onChange] = 'submit()'
        r.select_from_list_selected_callback(array,
          array[@model.send(@selected)]) do |item|
            @model.send(@change_selected, array.index(item))
          end
      end
    end
  end