Rails - May 2006 - 1 Form for Model containing another Model??

Hi,

I can have a Person model with a "has_one :address_email" association,
then do the following in my controller:

@person = Person.new
@person.address_email = AddressEmail.new

But, when I have 1 form for "Person" in my view I can''t bind
fields in
the @person.address_email object with text_field or text_field_tag
helpers without getting a "undefined local variable or method.  The
helpers don''t seem to be able to access the composed/attribute model no
matter what syntax I use.

I _can_ query the @person.address_email object via a breakpoint console.

Page 343 of the Agile book seems to indicate what I''m after is
possible:
"Form Parameters: user[address][city] = Wien , params: { :user => {
:address => { :city => "Wien" }}}"

So any ideas?  Is it possible to have 1 form with two models where one
model is an instance variable of the other?

Thanks much for any thoughts!

Cheers, JW

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JW wrote:
> I can have a Person model with a "has_one :address_email"
association,
> then do the following in my controller:
> 
> @person = Person.new
> @person.address_email = AddressEmail.new
> 
> But, when I have 1 form for "Person" in my view I can''t
bind fields in
> the @person.address_email object with text_field or text_field_tag
> helpers without getting a "undefined local variable or method.  The
> helpers don''t seem to be able to access the composed/attribute
model no
> matter what syntax I use.
No you can''t do this, though a core patch is available that makes it
possible: <http://dev.rubyonrails.org/ticket/2053>

Instead I''d suggest using something like:

@address_email = @person.build_address_email(params[:address_email])

text_field :address_email, :address1
text_field :address_email, :email

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We develop, watch us RoR, in numbers too big to ignore.

Mark Reginald James wrote:
> JW wrote:
>> matter what syntax I use.
> No you can''t do this, though a core patch is available that makes
it
> possible: <http://dev.rubyonrails.org/ticket/2053>
> 
> Instead I''d suggest using something like:
> 
> @address_email = @person.build_address_email(params[:address_email])
> 
> text_field :address_email, :address1
> text_field :address_email, :email
Hi Mark,

First thanks very much for your help and comment... I was really
stumbling hard on that one.

Will examine the build_address_email method in ActiveRecord but do hope
the core patch makes it in as it seems to be straight-forward.

Cheers and thanks again...

JW

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