How to create a form for multiple entries?

hi guys,

I have a fairly simple application for a party.

An “invite” object has many “guest” objects.

When I open up localhost:3000/invites/:id/guests/, I expect to see
the details of the “invite” along with all the guest objects
associated with the given invite.

I would like to have a form whereby there’s a checkbox on the left of
each guest entry which represents if the
guest has decided to attend the party (or not).

Nevertheless, I kept getting this error, " undefined method
`guest_path’ for #ActionView::Base:0x0000001138fe88" when i open the
url above.

I am not sure what I am doing wrong. Anyway, this is how my “~/
projects/party/app/views/guests/index.rhtml”
looks like. Yes, I am aware this is not following CRUD closely but
it’s a very simple app hence I have stripped a lot of things down.

---------- extract start -------------------------------

Listing guests

<% @guests.each do |guest| %>
<% form_for(guest) do |f| %>
<%= f.error_messages %>

  <p>
    <%= f.label :name %><br />
    <%= f.text_field :name %>
  </p>
  <p>
    <%= f.label :contact_number %><br />
    <%= f.text_field :contact_number %>
  </p>
  <p>
    <%= f.label :status %><br />
    <%= f.check_box :status %>
  </p>
  <p>
    <%= f.label :email %><br />
    <%= f.text_field :email %>
  </p>
  <p>
    <%= f.submit 'Update' %>
  </p>
<% end %>

<% end %>

---------- extract end -------------------------------

Any ideas on how to create the multielement form, guys?

thanks

I’m not a professional Rails developper but I believe I went through the
same kind of issue.
So take a look at this:
http://railscasts.com/episodes/75-complex-forms-part-1 and possibly
part-2 and 3 as well.

Christophe

Le 6 avr. 2010 à 08:01, ct9a a écrit :

It seems that you created the guest and invite routes nested, right?

So, you have to write your form like this:

<% form_for([@invite, guest]) do |f| %>

This form above will use the url: /invites/:invite_id/guests/:id/edit

Some reference:
http://adamblog.heroku.com/past/2007/12/20/nested_resources_in_rails_2/

Cheers!

Nícolas Iensen

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