ruby on rails - link_to => undefined method path -

i have created object events , have refactored controller. have :

the view :

<td><%= link_to 'show', event %></td> 

the route :

scope 'admin', :module => 'back', :as => 'back'   root :to => 'events#index'   resources :events end 

the controller :

class back::eventscontroller < backcontroller 

but have error undefined method event_path. have changed link :

<td><%= link_to 'show', back_event %></td> 

because when make rake routes see :

          back_event    /admin/events/:id(.:format)      back/events#show                      patch  /admin/events/:id(.:format)      back/events#update                      put    /admin/events/:id(.:format)      back/events#update                      delete /admin/events/:id(.:format)      back/events#destroy 

but now, have error : undefined local variable or method `back_event

how can create link ?

thanks.

eric

<td><%= link_to 'show', back_event_path(event) %></td> 

you need spend time reading basics: http://guides.rubyonrails.org/routing.html