[Rails] Four Days on Rails

[James Knight]

Hi John,

Thanks for writing this tutorial - it looks exactly what I need.

However, I'm having problems setting it up, and wonder whether I'm 
missing something obvious.

Page 9 - adding the model and scaffold lines to the 
categories_controller. Hold on, shouldn't that be category_controller? 
At least, that's what's created when I run "ruby script/generate 
controller category"

Anyway, when I add the scaffold and test it in a browser, I get this error:
  ActiveRecord::StatementInvalid in Category#index

Invalid argument: SELECT * FROM categories

When I run that select in mysql it runs fine, although there's not yet 
any content in there, so it returns an empty set.

Surely this shouldn't be an invalid statement.


Any ideas?
Thanks in advance.

James