# How to create a form for multiple entries?

**URL:** <https://www.ruby-forum.com/t/how-to-create-a-form-for-multiple-entries/186387>\
**Category:** Rails\
**Created:** [April 6, 2010, 8:03am UTC](https://www.ruby-forum.com/t/how-to-create-a-form-for-multiple-entries/186387 "2010-04-06T08:03:29Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![ct9a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ad7895/32.png) [@ct9a](https://www.ruby-forum.com/u/ct9a)\
**Post date:** [April 6, 2010, 8:03am UTC](https://www.ruby-forum.com/t/how-to-create-a-form-for-multiple-entries/186387/1 "2010-04-06T08:03:29Z")

</div>

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

---

<div class="post-metadata">

**Author:** ![ct9a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ad7895/32.png) [@ct9a](https://www.ruby-forum.com/u/ct9a)\
**Post date:** [April 6, 2010, 9:31am UTC](https://www.ruby-forum.com/t/how-to-create-a-form-for-multiple-entries/186387/2 "2010-04-06T09:31:17Z")

</div>

I’m not a professional Rails developper but I believe I went through the  
same kind of issue.  
So take a look at this:  
[#75 Complex Forms Part 3 - RailsCasts](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 :

---

<div class="post-metadata">

**Author:** ![ct9a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ad7895/32.png) [@ct9a](https://www.ruby-forum.com/u/ct9a)\
**Post date:** [April 6, 2010, 1:59pm UTC](https://www.ruby-forum.com/t/how-to-create-a-form-for-multiple-entries/186387/3 "2010-04-06T13:59:57Z")

</div>

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/](http://adamblog.heroku.com/past/2007/12/20/nested_resources_in_rails_2/)

Cheers!

Nícolas Iensen