Rails - Aug 2005 - Rolling with Ruby on Rails 2 not working

Hi, I have been trying Curt Hibbs'' tutorial parts 1 and 2 with MySQL. 
Everything is fine except for edit/update. When I clicked the update button 
from edit.rhtml I got:
=========================ActiveRecord::RecordNotFound in Recipe#update 
Couldn''t find Recipe without an ID
/app/controllers/recipe_controller.rb:35:in `update''
script/server:49
Show framework trace 
c:/ruby182/lib/ruby/gems/1.8/gems/activerecord-
1.11.1/lib/active_record/base.rb:352:in `find''
c:/ruby182/lib/ruby/gems/1.8/gems/actionpack-
1.9.1/lib/action_controller/base.rb:756:in `send''
c:/ruby182/lib/ruby/gems/1.8/gems/actionpack-
1.9.1/lib/action_controller/base.rb:756:in
`perform_action_without_filters''
c:/ruby182/lib/ruby/gems/1.8/gems/actionpack-
1.9.1/lib/action_controller/filters.rb:295:in 
`perform_action_without_benchmark''
c:/ruby182/lib/ruby/gems/1.8/gems/actionpack-
1.9.1/lib/action_controller/benchmarking.rb:41:in 
`perform_action_without_rescue''
c:/ruby182/lib/ruby/gems/1.8/gems/actionpack-
1.9.1/lib/action_controller/benchmarking.rb:41:in `measure''
c:/ruby182/lib/ruby/gems/1.8/gems/actionpack-
1.9.1/lib/action_controller/benchmarking.rb:41:in 
`perform_action_without_rescue''
c:/ruby182/lib/ruby/gems/1.8/gems/actionpack-
1.9.1/lib/action_controller/rescue.rb:80:in `perform_action''
c:/ruby182/lib/ruby/gems/1.8/gems/actionpack-
1.9.1/lib/action_controller/base.rb:356:in `send''
c:/ruby182/lib/ruby/gems/1.8/gems/actionpack-
1.9.1/lib/action_controller/base.rb:356:in `process''
c:/ruby182/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/dispatcher.rb:32:in 
`dispatch''
c:/ruby182/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/webrick_server.rb:105:in 
`handle_dispatch''
c:/ruby182/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/webrick_server.rb:71:in 
`service''



         
Request
Parameters: {"recipe"=>
{"title"=>"Hotchips", "id"=>"1",
"category_id"=>"1",
"description"=>"only for
the brave", "instructions"=>" pour a bottle of chilli
sauce on chips\r\n "}}

Show session dump

--- 
flash: !ruby/hash:ActionController::Flash::FlashHash 
  :notice: going to update
Response
Headers: {"cookie"=>[],
"Cache-Control"=>"no-cache"}
===========================================
the parameter seems OK, but why "cannot find without ID"?
Would appreciate any help, I have been trying to fix this myself for some time.

tryror <sttan@...> writes: 
> Hi, I have been trying Curt Hibbs'' tutorial parts 1 and 2 with
MySQL.
> Everything is fine except for edit/update. When I clicked the update button
> from edit.rhtml I got:
> 
> the parameter seems OK, but why "cannot find without ID"?
> Would appreciate any help, I have been trying to fix this myself for some 
time.
> 
I figured it out. The update is not included in the original article, other 
than for categories which comes from scaffold. We must add update method in 
recipecontroller.rb and change edit.rhtml. Best to do using render_partial 
with a _form.rhtml. Everythins is fine now.