Rails - Jan 2010 - Nothing shows up under fields_for when referring to a valid association

Hi,

I have something like this:

    class Group < ActiveRecord::Base
      has_many :members
      accepts_nested_attributes_for :members
    end

    class Member < ActiveRecord::Base
      belongs_to :group
    end

    -form_for @group do |form|
      -form.fields_for :members do |member|
        =member.text_field :display_name

and nothing shows up under "form.fields_for :members do |member|".  In
fact, if I put invalid code there, it''s not even evaluated.  However,
if I specify an invalid assocation like "form.fields_for :memberszzzz
do |member|", the text field for :display_name does show up.

Does anyone know what could be problem?

Thanks!

Bob

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Ok, it turns out the problem was that I needed to specify
attr_accessible :members_attributes in the model, and
@group.members.build in the controller for it to work.

Found the solution here:
http://stream.btucker.org/post/93887650/accepts-nested-attributes-for-fields-for

On Jan 24, 1:11 pm, bob
<papersm...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hi,
>
> I have something like this:
>
>     class Group < ActiveRecord::Base
>       has_many :members
>       accepts_nested_attributes_for :members
>     end
>
>     class Member < ActiveRecord::Base
>       belongs_to :group
>     end
>
>     -form_for @group do |form|
>       -form.fields_for :members do |member|
>         =member.text_field :display_name
>
> and nothing shows up under "form.fields_for :members do
|member|".  In
> fact, if I put invalid code there, it''s not even evaluated.
 However,
> if I specify an invalid assocation like "form.fields_for :memberszzzz
> do |member|", the text field for :display_name does show up.
>
> Does anyone know what could be problem?
>
> Thanks!
>
> Bob
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