tricky rails

here's a tricky little bug in Rails:

If you omit the :update parameter in a observe_form call, like this:

 <%= observe_form 'form1',
                   :url => {:action=>'todo_line', :only_path => false} %>

Rails won't return the params of the form to the application with todo_line. You need to pass an empty hash for :update, like this:

 <%= observe_form 'form1',
                   :update => {},
                   :url => {:action=>'todo_line', :only_path => false} %>

I got all this from the rails wiki.