RailRoad problem

Rails
1

Hi guys!
I am having a problem using railroad gem while running the command:
railroad -C | neato -Tpng > controllers.png

i get this error:
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/
dependenci
es.rb:445:in load_missing_constant': uninitialized constant AdminSessionsContro ller (NameError) from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/ active_suppo rt/dependencies.rb:77:inconst_missing’
from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/
active_suppo
rt/dependencies.rb:89:in const_missing' from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/ active_suppo rt/inflector.rb:352:inconstantize’
from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/
active_suppo
rt/inflector.rb:351:in each' from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/ active_suppo rt/inflector.rb:351:inconstantize’
from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/
active_suppo
rt/core_ext/string/inflections.rb:162:in constantize' from c:/ruby/lib/ruby/gems/1.8/gems/railroad-0.5.0/lib/ railroad/controll ers_diagram.rb:28:ingenerate’
from c:/ruby/lib/ruby/gems/1.8/gems/railroad-0.5.0/lib/
railroad/controll
ers_diagram.rb:24:in each' from c:/ruby/lib/ruby/gems/1.8/gems/railroad-0.5.0/lib/ railroad/controll ers_diagram.rb:24:ingenerate’
from c:/ruby/lib/ruby/gems/1.8/gems/railroad-0.5.0/bin/
railroad:47
from c:/ruby/bin/railroad:19:in `load’
from c:/ruby/bin/railroad:19

Any suggestions how to solve this???
Thanx in advance
Kostas L.

2

Here is a hack of a fix I found:
http://d.hatena.ne.jp/zenpou/20081021/1224559643

There is certainly a more elegant way to do this, but it got the job
done when I needed to make some models right quick.

To summarize, from the link, in lib/railroad/app_diagram.rb

make the following change:

< File.basename(filename).chomp(“.rb”).camelize

if check_path
  prefix_class_names = filename.to_s.split(check_path).last
  File.dirname(prefix_class_names).each do  | prefix_class_name |
    prefix_classes << prefix_class_name.camelize  unless prefix_class_name.blank? || prefix_class_name == "."
  end
  prefix_classes << File.basename(filename).chomp(".rb").camelize
end
prefix_classes.join("::")

Hope this is useful to someone