Rails - Mar 2011 - Edit With Nested Forms - Values Not Preserved Across Submit

When a nested form submitted to the create action contains missing
data, the form is redisplayed and the nested values the user entered
remain. When submitting the same nested  form to the update action,
the newly entered values remain for the parent record, but the child
records revert back to their pre edit values.

Here''s the form (from Rails Guides):

<% form_for @customer do |customer_form| %>
  <div>
    <%= customer_form.label :name, ''Customer Name:'' %>
    <%= customer_form.text_field :name %>
  </div>

  <% customer_form.fields_for :orders do |order_form| %>
    <p>
      <div>
        <%= order_form.label :number, ''Order Number:'' %>
        <%= order_form.text_field :number %>
      </div>


      <% unless order_form.object.new_record? %>
        <div>
          <%= order_form.label :_delete, ''Remove:'' %>
          <%= order_form.check_box :_delete %>
        </div>
      <% end %>
    </p>
  <% end %>

  <%= customer_form.submit %>
<% end %>


It looks like this is a problem with accepts_nested_attributes_for. It
loads and updates the records in the nested form, but when the  form
is redisplayed @customer.orders is loaded from the DB, squashing the
changes by the nested attributes module.

Is it possible to retain nested data across form redisplays to the
update action?


-- 
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en.

On Mar 25, 12:07 am, MaggotChild
<hsomob1...-/E1597aS9LQAvxtiuMwx3w@public.gmane.org>
wrote:
>
> Is it possible to retain nested data across form redisplays to the
> update action?
Anyone?

The answer appears to be no, given the Rails Guides example and the
Complex Forms Examples: github.com/alloy/complex-form-examples/tarball/
master. This is a big downside to using nested attributes with complex
forms.



-- 
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en.