[Facebooker-talk] form_tag and form_for cause #protect_from_forgery errors

[BJ Clark]

Hey All,

I'm trying to do a simple form_for (and I also get it with form_tag)  
and I'm getting the following error:

ActionView::TemplateError (No :secret given to the  
#protect_from_forgery call.  Set that or use a session store capable  
of generating its own keys (Cookie Session Store).) on line #2 of  
users/new.fbml.erb:
1: <h1>Welcome To Courses, Let's Get Started.</h1>
2: <% form_for :user, user_path, :method => :post do |form| %>
3: 	<fb:editor-custom label="You are a">
4: 		<label><%= radio_button_tag 'user_type', 'student', true %>  
Student</label>
5: 		<label><%= radio_button_tag 'user_type', 'instructor' %> Teacher</ 
label>

     vendor/rails/actionpack/lib/action_controller/ 
request_forgery_protection.rb:114:in `form_authenticity_token'
     (eval):2:in `send'
     (eval):2:in `form_authenticity_token'
     vendor/rails/actionpack/lib/action_view/helpers/ 
form_tag_helper.rb:453:in `token_tag'
     vendor/rails/actionpack/lib/action_view/helpers/ 
form_tag_helper.rb:430:in `extra_tags_for_form'
     vendor/rails/actionpack/lib/action_view/helpers/ 
form_tag_helper.rb:438:in `form_tag_html'
     vendor/rails/actionpack/lib/action_view/helpers/ 
form_tag_helper.rb:41:in `form_tag'
     vendor/rails/actionpack/lib/action_view/helpers/form_helper.rb: 
204:in `form_for'
     app/views/users/new.fbml.erb:2:in  
`_run_erb_47app47views47users47new46fbml46erb'


I've got this in my application.rb:
   config.action_controller.session_store = :active_record_store
   config.action_controller.session = {
     :session_key => '_app_session',
     :secret      => 'xxx'
   }


What's the trick for getting around this?

Thanks,
BJ Clark