Question

OK, so the relationship is: Program has many :events
And each Event belongs to an Organizer (who has_many :events)

In a form for Program/edit, I’d like to list the associated events, and with each of those entries, also have access to each Organizer so I can do something like:

textfield(event.name) | textfield(event.date) | label(event.organizer.name)

So…

<% form_for([:admin, program]) do |f| %>

...

  <h3>Event Data Fields</h3>
    <table>
     <% f.fields_for :events do |event_form| %>
  <tr class="line_item">
    <td><%= event_form.text_field :name %></td>
    <td><%= event_form.text_field :date %></td>
    <td><%= event_form.text_field "organizer.name", :disabled=>true %></td>

  </tr>


      <% end %>
    </table>
    <p><%= f.submit "Submit" %></p>
<% end %>

Obviously, event_form.text_field “organizer.name” won’t work, but that’s the concept

Answer 1

Why not just use fields for?…

<% form_for([:admin, program]) do |f| %>

...

  <h3>Event Data Fields</h3>
  <table>
     <% program.events.each do |event| %>
       <% f.fields_for event do |event_form| %>
  <tr class="line_item">
    <td><%= event_form.text_field :name %></td>
    <td><%= event_form.text_field :date %></td>
    <% event_form.fields_for(:organizer) do |organizer_form| %>
      <td><%= organizer_form.text_field :name, :disabled=>true %></td>
    <% end %>
  </tr>
       <% end %>
     <% end %>
   </table>
   <p><%= f.submit "Submit" %></p>
<% end %>