i have an RoR application Log, which similar to the book store app, my logs_controller has all default action: index, show, update, create, delete..

now i need to add new action :toCSV, i defined it in logs_controller, and add new route in the config/routes as:

map.resources :logs, :collection => { :toCSV => :get }.

from irb, i checked the routes and see the new routes added already:

>> rs = ActionController::Routing::Routes
>> puts rs.routes
GET    /logs/toCSV(.:format)?                   {:controller=>"logs", :action=>"toCSV"}

then ran ‘rake routes’ command in shell, it returned:

toCSV_logs GET    /logs/toCSV(.:format)         {:controller=>"logs", :action=>"toCSV"}

everything seems working. finally in my views code, i added the following:

link_to 'Export to CSV', toCSV_logs_path

when access it in the brower 'http://localhost:3000/logs/toCSV', it complained: Couldn't find Log with ID=toCSV

i checked in script/server, and saw this one:

ActiveRecord::RecordNotFound (Couldn't find Log with ID=toCSV):
  app/controllers/logs_controller.rb:290:in `show'

seems when i click that link, it direct it to the action 'show' instead of 'toCSV', thus it took 'toCSV' as an id...anyone know why would this happen? and to fix it? Thanks...