I understand how to turn :controller
, :action,
:etc
into a URL. I'm looking to do the reverse, how can the action that the rails router will call be found from the URL?
With Rails 3 you can do:
Rails.application.routes.recognize_path('/areas/1')
=> {:controller=>"areas", :action=>"show", :id=>"1"}
someone else might have a shorter way to do this, but if you are just evaluating a URL, then you go to the ActionController::Routing::RouteSet
class
for a config.routes.rb
map.resources :sessions
the code to find is:
ActionController::Routing::Routes.recognize_path('/sessions/new', {:method => :get})
#=> {:controller => 'sessions', :action => 'new'}
Right:
ActionController::Routing::Routes.recognize_path('/sessions/1/edit', {:method => :get})
#=> {:controller => 'sessions', :action => 'edit', :id => 1}
Wrong - without the method
being explicitly added, it will default match to /:controller/:action/:id
:
ActionController::Routing::Routes.recognize_path('/sessions/1/edit')
#=> {:controller => 'sessions', :action => '1', :id => 'edit'}
If you are within the action and would like to know, it is quite a bit easier by calling params[:action]
everything you ever wanted to know about routeset can be found here: http://caboo.se/doc//classes/ActionController/Routing/RouteSet.html#M004878
Hope this helps!
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