Rails - Aug 2006 - Accessing belongs_to objects from a form_for context

In a form_for context, is there a way to access objects that are related 
to the primary object with a belongs_to?  I think an example will serve 
best:

class User < ActiveRecord::Base
   belongs_to :person
   attr_accessor :username
end

class Person < ActiveRecord::Base
   has_one :user
   attr_accessor :first_name
end


<% form_for :user do |form| %>
   <%= form.text_field :username, :size => 40%>
   <%= form.text_field "person.first_name", :size => 40%>  
?????
doesn''t work
   <%= submit_tag "Add User", :class => "submit" %>
<% end %>


Is there a way to do this?

-- 
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Still trying to figure out similar issues myself...

did you try "person[first_name]" ?

Ryan Sandridge wrote:
> In a form_for context, is there a way to access objects that are related 
> to the primary object with a belongs_to?  I think an example will serve 
> best:
> 
> class User < ActiveRecord::Base
>    belongs_to :person
>    attr_accessor :username
> end
> 
> class Person < ActiveRecord::Base
>    has_one :user
>    attr_accessor :first_name
> end
> 
> 
> <% form_for :user do |form| %>
>    <%= form.text_field :username, :size => 40%>
>    <%= form.text_field "person.first_name", :size =>
40%>   ?????
> doesn''t work
>    <%= submit_tag "Add User", :class => "submit"
%>
> <% end %>
> 
> 
> Is there a way to do this?

-- 
Posted via http://www.ruby-forum.com/.

Michael Schuerig wrote:
> On Tuesday 22 August 2006 05:16, Ryan Sandridge wrote:
>>   I learned that I shouldn''t have the attr_accessor''s
for database
>> backed attributes in the model.  I learned that there is currently no
>> way to access child objects through the form_for mechanism (use
>> form_tag instead).
> 
> Have look at the docs for fields_for
> 
>
http://api.rubyonrails.org/classes/ActionView/Helpers/FormHelper.html#M000388
> 
> It looks like that''s what you need.
> 
> Michael
Very nice.  It does indeed look like it could do the trick.  Considering 
how often I saw this question asked on other rails forums, I''m shocked 
to just now see this answer.

Thanks much,
  Ryan

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