I read several tutorials and tried with them. Finally, I adopted the
sample used inhttp://www.oracle.com/technology/pub/articles/haefel-oracle-ruby.html
with mysql because it is more up-dated.
This tutorial is really out of date. Rails has moved on quite a bit
since 2006. I would suggest looking at the tutorials on the Akita on
I executed "http://127.0.0.1:3000/categories/show" or
"http://127.0.0.1:3000/categories/list", the error messages came up.
What does line 16 of your categories_controller.rb file say as this is
where the error is being thrown?