The Depot Application

23.8 Uploading Files to Rails Applications 23.6 Custom Form Builders

edit app/views/test/calculate.html.erb

<% unless @errors.blank? %>

  <ul>

  <% for error in @errors %>

    <li><p><%= h(error) %></p></li>

  <% end %>

  </ul>

<% end %>

<%= form_tag(:action => :calculate) do %>

  <%= text_field_tag(:arg1, params[:arg1], :size => 3) %>

  <%= select_tag(:operator, 

                 options_for_select(%w{ + - * / }, 

                                    params[:operator])) %>

  <%= text_field_tag(:arg2, params[:arg2], :size => 3) %>

<% end %>

<strong><%= @result %></strong>

get /test/calculate

23.8 Uploading Files to Rails Applications 23.6 Custom Form Builders