Rails - Jan 2006 - Unitialized constant

In Agile Web Development with Rails, I get this error when adding a  
product to my cart:

uninitialized constant Cart
...
Application Trace:
/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/ 
active_support/dependencies.rb:200:in `const_missing''
./public/../config/../app/controllers/store_controller.rb:21:in  
`find_cart''
./public/../config/../app/controllers/store_controller.rb:9:in  
`add_to_cart''

This error occured while loading the following files:
    cart.rb

Any ideas what I did wrong? I can''t find a problem with
"find_cart"
or "add_to_cart". My cart.rb class has been created.

Thanks,
Doug

In Agile Web Development with Rails, I get this error when adding a  
product to my cart:

uninitialized constant Cart
...
Application Trace:
/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/ 
active_support/dependencies.rb:200:in `const_missing''
./public/../config/../app/controllers/store_controller.rb:21:in  
`find_cart''
./public/../config/../app/controllers/store_controller.rb:9:in  
`add_to_cart''

This error occured while loading the following files:
    cart.rb

Any ideas what I did wrong? I can''t find a problem with
"find_cart"
or "add_to_cart". My cart.rb class has been created.

Thanks,
Doug

On 2006-01-24 17:06:41 -0500, Doug Hall 
<Doug_Hall@aidt.edu> said:
> In Agile Web Development with Rails, I get this error when adding a  
> product to my cart:
> 
> uninitialized constant Cart
> ...
> Application Trace:
> /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/ 
> active_support/dependencies.rb:200:in `const_missing''
> ./public/../config/../app/controllers/store_controller.rb:21:in 
`find_cart''
> ./public/../config/../app/controllers/store_controller.rb:9:in 
`add_to_cart''
> 
> This error occured while loading the following files:
>     cart.rb
> 
> Any ideas what I did wrong? I can''t find a problem with
"find_cart"  or
> "add_to_cart". My cart.rb class has been created.
> 
> Thanks,
> Doug
If you are storing Cart object in the session, you must load the models 
explicitly in the controller.

In AWDWR (p.81 of the pdf):

class ApplicationController < ActionController::Base
  model :cart
  model :line_item
end

On 1/24/06, Benoit Gagnon <b.gagnon@gmail.com>
wrote:
>
>
> If you are storing Cart object in the session, you must load the models
> explicitly in the controller.
>
> In AWDWR (p.81 of the pdf):
>
> class ApplicationController < ActionController::Base
>   model :cart
>   model :line_item
> end

DOH! I should have kept reading!

Thanks!
Doug
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