Rails2/Rails3 nested form, fields_for not displayed

Hi all,

I'm having some issues to create a nested form with Rails3, the fields for creating my "children" object are not displayed in the form of its parent form.

The code below is working under rails2 and not rails3, after reading the rails3 release note, they didn't make any changes about nested attributes. So it should work, or maybe I've missed something...

#model/book.rb class Book < ActiveRecord::Base   has_one :author   accepts_nested_attributes_for :author end

#model/author.rb class Author < ActiveRecord::Base   belongs_to :book end

#views/books/_form.html.erb <%= form_for(@book) do |f| %>   ...   <div class="field">     <%= f.label :title %><br />     <%= f.text_field :title %>   </div>

        <!-- For some reasons this block doesn't show up under rails3 but in rails 2 it's working -->   <% f.fields_for :author do |author_form|%>     <div class="field">     <%= author_form.label :name%>     <%= author_form.text_field :name %>     </div>   <% end %>

  <div class="actions">     <%= f.submit %>   </div> <% end %>

#controllers/books_controller.rb def new     @book = Book.new     @book.build_author

    respond_to do |format|       format.html # new.html.erb       format.xml { render :xml => @book }     end   end

I would appreciate any help, thanks. And I apologize if I made any english errors. Nico.

        <!-- For some reasons this block doesn't show up under rails3 but in rails 2 it's working -->   <% f.fields_for :author do |author_form|%>     <div class="field">     <%= author_form.label :name%>     <%= author_form.text_field :name %>     </div>   <% end %>

replace <% f.fields_for :author do |author_form|%> with <%= f.fields_for :author do |author_form|%>

Not used Rails 3 yet, but shouldn't your symbol be plural (:authors) since you have a one-to-many relationship?

It's working. thanks a lot! It was a stupid error from me :).

Nicolas,   Sorry to drag up this old topic, but I'm having the exact same problem. So what was your error? I assume I'm making the same mistake.

Thanks in advance, Chris

Solrac Caritas wrote in post #945648:

<% f.fields_for :author do |author_form|%> with <%= f.fields_for :author do |author_form|%>

Thanks you very much It help me too!

thank you thank you thank you!!!! I'm starting to play with Ruby (being a python man myself), and I've been loosing my mind for two days with this!!!