[Rails] saving to two different models - accepts_nested_attributes_for not working

I'm having trouble with saving to two different models, from one form... I tried to follow rails casts #196 and looked at several other examples here at stackoverflow but I haven't figured out how to do this because my case is a little bit different...

So, I have two models:

class Patient < ActiveRecord::Base    attr_accessible :date_of_birth, :patient_name      has_many :samples  end    class Sample < ActiveRecord::Base    attr_accessible :approved, :patientID, :result, :patient      belongs_to :patient    accepts_nested_attributes_for :patient  end  

What I found on most of the examples I saw, including the railscasts, is to create a new sample inside the patient form, and the "accepts_nestes_attributes_for" is inside the "patient" model... But what I want to do is exactly the opposite, that is, creating a new patient inside the new sample form.

Here're my views, I have a normal form for the sample and then a partial for the patient part:

_form.html.erb

<%= form_for(@sample) do |f| %>    <% if @sample.errors.any? %>      <div id="error_explanation">        <h2><%= pluralize(@sample.errors.count, "error") %> prohibited this sample from being saved:</h2>          <ul>        <% @sample.errors.full_messages.each do |msg| %>          <li><%= msg %></li>        <% end %>        </ul>      </div>    <% end %>      <div class="field">      <%= f.label :result %><br />      <%= f.text_area :result %>    </div>    <div class="field">      <%= f.label :approved %><br />      <%= f.check_box :approved %>    </div>    <div><%= render 'patient' %></div>    <div class="actions">      <%= f.submit %>    </div>  <% end %>  

patient.html.erb

<%= fields_for :patient do |p| %>  <div class="field">      <%= p.label :patient_name %><br />      <%= p.text_field :patient_name %>  </div>  <div class="field">      <%= p.label :date_of_birth %><br />      <%= p.date_select :date_of_birth %>  </div>  <% end %>  

When I click the submit button everything seems to work, but nothing is saved into the patients table.

Here's the log:

Started POST "/samples" for 127.0.0.1 at 2013-10-12 23:32:03 +0100  Processing by SamplesController#create as HTML    Parameters: {"utf8"=>"✓", "authenticity_token"=>"13OKZ8DaGJ4zTb35q+ymSzx7r+Ipxou1u+XrR4jtyeI=", "sample"=>{"result"=>"teste 3", "approved"=>"0"}, "patient"=>{"patient_name"=>"Joao", "date_of_birth(1i)"=>"2013", "date_of_birth(2i)"=>"10", "date_of_birth(3i)"=>"10"}, "commit"=>"Create Sample"}     (0.1ms)  begin transaction    SQL (0.5ms)  INSERT INTO "samples" ("approved", "created_at", "patientID", "result", "updated_at") VALUES (?, ?, ?, ?, ?)  [["approved", false], ["created_at", Sat, 12 Oct 2013 22:32:03 UTC +00:00], ["patientID", nil], ["result", "teste 3"], ["updated_at", Sat, 12 Oct 2013 22:32:03 UTC +00:00]]     (2.4ms)  commit transaction  Redirected to http://localhost:3000/samples/3  Completed 302 Found in 6ms (ActiveRecord: 2.9ms)  

As you can see in the log, it's only saving to the sample table. Can I use accepts_nested_attributes_for this way? Is there a way to achieve what I want? Or should I try a different approach?

After I solve this I will try to check first if the patient exists or not before committing and try to do as SAYT on the patient's name... but that's a future step!

Thanks for your help

--
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe@googlegroups.com.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/a6de505b-1fa1-4994-b9c0-d296e3b8ad63%40googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.