Move Routing into AD

10 files changed, 719 insertions, 715 deletions

diff --git a/actionpack/lib/action_controller.rb b/actionpack/lib/action_controller.rb
index 809e5f2ad4..b5091f39f9 100644
--- a/actionpack/lib/action_controller.rb
+++ b/actionpack/lib/action_controller.rb
@@ -18,22 +18,21 @@ module ActionController
   autoload :Testing,              "action_controller/metal/testing"
   autoload :UrlFor,               "action_controller/metal/url_for"
 
-  # Ported modules
-  # require 'action_controller/routing'
   autoload :Caching,           'action_controller/caching'
   autoload :Dispatcher,        'action_controller/dispatch/dispatcher'
   autoload :Integration,       'action_controller/deprecated/integration_test'
   autoload :IntegrationTest,   'action_controller/deprecated/integration_test'
   autoload :MimeResponds,      'action_controller/metal/mime_responds'
   autoload :PerformanceTest,   'action_controller/deprecated/performance_test'
-  autoload :PolymorphicRoutes, 'action_controller/routing/polymorphic_routes'
+  autoload :PolymorphicRoutes, 'action_controller/polymorphic_routes'
   autoload :RecordIdentifier,  'action_controller/record_identifier'
-  autoload :Resources,         'action_controller/routing/resources'
+  autoload :Resources,         'action_controller/deprecated'
+  autoload :Routing,           'action_controller/deprecated'
   autoload :SessionManagement, 'action_controller/metal/session_management'
   autoload :TestCase,          'action_controller/testing/test_case'
   autoload :TestProcess,       'action_controller/testing/process'
-  autoload :UrlRewriter,       'action_controller/routing/url_rewriter'
-  autoload :UrlWriter,         'action_controller/routing/url_rewriter'
+  autoload :UrlRewriter,       'action_controller/url_rewriter'
+  autoload :UrlWriter,         'action_controller/url_rewriter'
 
   autoload :Verification,             'action_controller/metal/verification'
   autoload :Flash,                    'action_controller/metal/flash'
@@ -54,8 +53,6 @@ module ActionController
   autoload :RenderError,              'action_controller/metal/exceptions'
   autoload :SessionOverflowError,     'action_controller/metal/exceptions'
   autoload :UnknownHttpMethod,        'action_controller/metal/exceptions'
-
-  autoload :Routing,                  'action_controller/routing'
 end
 
 autoload :HTML, 'action_controller/vendor/html-scanner'
diff --git a/actionpack/lib/action_controller/deprecated.rb b/actionpack/lib/action_controller/deprecated.rb
index d98e9ac7bd..23fe6a4c3a 100644
--- a/actionpack/lib/action_controller/deprecated.rb
+++ b/actionpack/lib/action_controller/deprecated.rb
@@ -1,2 +1,5 @@
 ActionController::AbstractRequest = ActionController::Request = ActionDispatch::Request
 ActionController::AbstractResponse = ActionController::Response = ActionDispatch::Response
+ActionController::Routing = ActionDispatch::Routing
+ActionDispatch::Resources = ActionDispatch::Routing::Resources
+ActionController::Routing::Routes = ActionDispatch::Routing::RouteSet.new
diff --git a/actionpack/lib/action_controller/routing/polymorphic_routes.rb b/actionpack/lib/action_controller/polymorphic_routes.rb
index 2adf3575a7..2adf3575a7 100644
--- a/actionpack/lib/action_controller/routing/polymorphic_routes.rb
+++ b/actionpack/lib/action_controller/polymorphic_routes.rb
diff --git a/actionpack/lib/action_controller/routing/resources.rb b/actionpack/lib/action_controller/routing/resources.rb
deleted file mode 100644
index 06506435a2..0000000000
--- a/actionpack/lib/action_controller/routing/resources.rb
+++ /dev/null
@@ -1,685 +0,0 @@
-require 'active_support/core_ext/hash/slice'
-require 'active_support/core_ext/object/try'
-
-module ActionController
-  # == Overview
-  #
-  # ActionController::Resources are a way of defining RESTful \resources.  A RESTful \resource, in basic terms,
-  # is something that can be pointed at and it will respond with a representation of the data requested.
-  # In real terms this could mean a user with a browser requests an HTML page, or that a desktop application
-  # requests XML data.
-  #
-  # RESTful design is based on the assumption that there are four generic verbs that a user of an
-  # application can request from a \resource (the noun).
-  #
-  # \Resources can be requested using four basic HTTP verbs (GET, POST, PUT, DELETE), the method used
-  # denotes the type of action that should take place.
-  #
-  # === The Different Methods and their Usage
-  #
-  # * GET    - Requests for a \resource, no saving or editing of a \resource should occur in a GET request.
-  # * POST   - Creation of \resources.
-  # * PUT    - Editing of attributes on a \resource.
-  # * DELETE - Deletion of a \resource.
-  #
-  # === Examples
-  #
-  #   # A GET request on the Posts resource is asking for all Posts
-  #   GET /posts
-  #
-  #   # A GET request on a single Post resource is asking for that particular Post
-  #   GET /posts/1
-  #
-  #   # A POST request on the Posts resource is asking for a Post to be created with the supplied details
-  #   POST /posts # with => { :post => { :title => "My Whizzy New Post", :body => "I've got a brand new combine harvester" } }
-  #
-  #   # A PUT request on a single Post resource is asking for a Post to be updated
-  #   PUT /posts # with => { :id => 1, :post => { :title => "Changed Whizzy Title" } }
-  #
-  #   # A DELETE request on a single Post resource is asking for it to be deleted
-  #   DELETE /posts # with => { :id => 1 }
-  #
-  # By using the REST convention, users of our application can assume certain things about how the data
-  # is requested and how it is returned.  Rails simplifies the routing part of RESTful design by
-  # supplying you with methods to create them in your routes.rb file.
-  #
-  # Read more about REST at http://en.wikipedia.org/wiki/Representational_State_Transfer
-  module Resources
-    INHERITABLE_OPTIONS = :namespace, :shallow
-
-    class Resource #:nodoc:
-      DEFAULT_ACTIONS = :index, :create, :new, :edit, :show, :update, :destroy
-
-      attr_reader :collection_methods, :member_methods, :new_methods
-      attr_reader :path_prefix, :name_prefix, :path_segment
-      attr_reader :plural, :singular
-      attr_reader :options
-
-      def initialize(entities, options)
-        @plural   ||= entities
-        @singular ||= options[:singular] || plural.to_s.singularize
-        @path_segment = options.delete(:as) || @plural
-
-        @options = options
-
-        arrange_actions
-        add_default_actions
-        set_allowed_actions
-        set_prefixes
-      end
-
-      def controller
-        @controller ||= "#{options[:namespace]}#{(options[:controller] || plural).to_s}"
-      end
-
-      def requirements(with_id = false)
-        @requirements   ||= @options[:requirements] || {}
-        @id_requirement ||= { :id => @requirements.delete(:id) || /[^#{Routing::SEPARATORS.join}]+/ }
-
-        with_id ? @requirements.merge(@id_requirement) : @requirements
-      end
-
-      def conditions
-        @conditions ||= @options[:conditions] || {}
-      end
-
-      def path
-        @path ||= "#{path_prefix}/#{path_segment}"
-      end
-
-      def new_path
-        new_action   = self.options[:path_names][:new] if self.options[:path_names]
-        new_action ||= Base.resources_path_names[:new]
-        @new_path  ||= "#{path}/#{new_action}"
-      end
-
-      def shallow_path_prefix
-        @shallow_path_prefix ||= @options[:shallow] ? @options[:namespace].try(:sub, /\/$/, '') : path_prefix
-      end
-
-      def member_path
-        @member_path ||= "#{shallow_path_prefix}/#{path_segment}/:id"
-      end
-
-      def nesting_path_prefix
-        @nesting_path_prefix ||= "#{shallow_path_prefix}/#{path_segment}/:#{singular}_id"
-      end
-
-      def shallow_name_prefix
-        @shallow_name_prefix ||= @options[:shallow] ? @options[:namespace].try(:gsub, /\//, '_') : name_prefix
-      end
-
-      def nesting_name_prefix
-        "#{shallow_name_prefix}#{singular}_"
-      end
-
-      def action_separator
-        @action_separator ||= Base.resource_action_separator
-      end
-
-      def uncountable?
-        @singular.to_s == @plural.to_s
-      end
-
-      def has_action?(action)
-        !DEFAULT_ACTIONS.include?(action) || action_allowed?(action)
-      end
-
-      protected
-        def arrange_actions
-          @collection_methods = arrange_actions_by_methods(options.delete(:collection))
-          @member_methods     = arrange_actions_by_methods(options.delete(:member))
-          @new_methods        = arrange_actions_by_methods(options.delete(:new))
-        end
-
-        def add_default_actions
-          add_default_action(member_methods, :get, :edit)
-          add_default_action(new_methods, :get, :new)
-        end
-
-        def set_allowed_actions
-          only, except = @options.values_at(:only, :except)
-          @allowed_actions ||= {}
-
-          if only == :all || except == :none
-            only = nil
-            except = []
-          elsif only == :none || except == :all
-            only = []
-            except = nil
-          end
-
-          if only
-            @allowed_actions[:only] = Array(only).map {|a| a.to_sym }
-          elsif except
-            @allowed_actions[:except] = Array(except).map {|a| a.to_sym }
-          end
-        end
-
-        def action_allowed?(action)
-          only, except = @allowed_actions.values_at(:only, :except)
-          (!only || only.include?(action)) && (!except || !except.include?(action))
-        end
-
-        def set_prefixes
-          @path_prefix = options.delete(:path_prefix)
-          @name_prefix = options.delete(:name_prefix)
-        end
-
-        def arrange_actions_by_methods(actions)
-          (actions || {}).inject({}) do |flipped_hash, (key, value)|
-            (flipped_hash[value] ||= []) << key
-            flipped_hash
-          end
-        end
-
-        def add_default_action(collection, method, action)
-          (collection[method] ||= []).unshift(action)
-        end
-    end
-
-    class SingletonResource < Resource #:nodoc:
-      def initialize(entity, options)
-        @singular = @plural = entity
-        options[:controller] ||= @singular.to_s.pluralize
-        super
-      end
-
-      alias_method :shallow_path_prefix, :path_prefix
-      alias_method :shallow_name_prefix, :name_prefix
-      alias_method :member_path,         :path
-      alias_method :nesting_path_prefix, :path
-    end
-
-    # Creates named routes for implementing verb-oriented controllers
-    # for a collection \resource.
-    #
-    # For example:
-    #
-    #   map.resources :messages
-    #
-    # will map the following actions in the corresponding controller:
-    #
-    #   class MessagesController < ActionController::Base
-    #     # GET messages_url
-    #     def index
-    #       # return all messages
-    #     end
-    #
-    #     # GET new_message_url
-    #     def new
-    #       # return an HTML form for describing a new message
-    #     end
-    #
-    #     # POST messages_url
-    #     def create
-    #       # create a new message
-    #     end
-    #
-    #     # GET message_url(:id => 1)
-    #     def show
-    #       # find and return a specific message
-    #     end
-    #
-    #     # GET edit_message_url(:id => 1)
-    #     def edit
-    #       # return an HTML form for editing a specific message
-    #     end
-    #
-    #     # PUT message_url(:id => 1)
-    #     def update
-    #       # find and update a specific message
-    #     end
-    #
-    #     # DELETE message_url(:id => 1)
-    #     def destroy
-    #       # delete a specific message
-    #     end
-    #   end
-    #
-    # Along with the routes themselves, +resources+ generates named routes for use in
-    # controllers and views. <tt>map.resources :messages</tt> produces the following named routes and helpers:
-    #
-    #   Named Route   Helpers
-    #   ============  =====================================================
-    #   messages      messages_url, hash_for_messages_url,
-    #                 messages_path, hash_for_messages_path
-    #
-    #   message       message_url(id), hash_for_message_url(id),
-    #                 message_path(id), hash_for_message_path(id)
-    #
-    #   new_message   new_message_url, hash_for_new_message_url,
-    #                 new_message_path, hash_for_new_message_path
-    #
-    #   edit_message  edit_message_url(id), hash_for_edit_message_url(id),
-    #                 edit_message_path(id), hash_for_edit_message_path(id)
-    #
-    # You can use these helpers instead of +url_for+ or methods that take +url_for+ parameters. For example:
-    #
-    #   redirect_to :controller => 'messages', :action => 'index'
-    #   # and
-    #   <%= link_to "edit this message", :controller => 'messages', :action => 'edit', :id => @message.id %>
-    #
-    # now become:
-    #
-    #   redirect_to messages_url
-    #   # and
-    #   <%= link_to "edit this message", edit_message_url(@message) # calls @message.id automatically
-    #
-    # Since web browsers don't support the PUT and DELETE verbs, you will need to add a parameter '_method' to your
-    # form tags. The form helpers make this a little easier. For an update form with a <tt>@message</tt> object:
-    #
-    #   <%= form_tag message_path(@message), :method => :put %>
-    #
-    # or
-    #
-    #   <% form_for :message, @message, :url => message_path(@message), :html => {:method => :put} do |f| %>
-    #
-    # or
-    #
-    #   <% form_for @message do |f| %>
-    #
-    # which takes into account whether <tt>@message</tt> is a new record or not and generates the
-    # path and method accordingly.
-    #
-    # The +resources+ method accepts the following options to customize the resulting routes:
-    # * <tt>:collection</tt> - Add named routes for other actions that operate on the collection.
-    #   Takes a hash of <tt>#{action} => #{method}</tt>, where method is <tt>:get</tt>/<tt>:post</tt>/<tt>:put</tt>/<tt>:delete</tt>,
-    #   an array of any of the previous, or <tt>:any</tt> if the method does not matter.
-    #   These routes map to a URL like /messages/rss, with a route of +rss_messages_url+.
-    # * <tt>:member</tt> - Same as <tt>:collection</tt>, but for actions that operate on a specific member.
-    # * <tt>:new</tt> - Same as <tt>:collection</tt>, but for actions that operate on the new \resource action.
-    # * <tt>:controller</tt> - Specify the controller name for the routes.
-    # * <tt>:singular</tt> - Specify the singular name used in the member routes.
-    # * <tt>:requirements</tt> - Set custom routing parameter requirements; this is a hash of either 
-    #     regular expressions (which must match for the route to match) or extra parameters. For example:
-    #
-    #       map.resource :profile, :path_prefix => ':name', :requirements => { :name => /[a-zA-Z]+/, :extra => 'value' }
-    #
-    #     will only match if the first part is alphabetic, and will pass the parameter :extra to the controller.
-    # * <tt>:conditions</tt> - Specify custom routing recognition conditions.  \Resources sets the <tt>:method</tt> value for the method-specific routes.
-    # * <tt>:as</tt> - Specify a different \resource name to use in the URL path. For example:
-    #     # products_path == '/productos'
-    #     map.resources :products, :as => 'productos' do |product|
-    #       # product_reviews_path(product) == '/productos/1234/comentarios'
-    #       product.resources :product_reviews, :as => 'comentarios'
-    #     end
-    #
-    # * <tt>:has_one</tt> - Specify nested \resources, this is a shorthand for mapping singleton \resources beneath the current.
-    # * <tt>:has_many</tt> - Same has <tt>:has_one</tt>, but for plural \resources.
-    #
-    #   You may directly specify the routing association with +has_one+ and +has_many+ like:
-    #
-    #     map.resources :notes, :has_one => :author, :has_many => [:comments, :attachments]
-    #
-    #   This is the same as:
-    #
-    #     map.resources :notes do |notes|
-    #       notes.resource  :author
-    #       notes.resources :comments
-    #       notes.resources :attachments
-    #     end
-    #
-    # * <tt>:path_names</tt> - Specify different path names for the actions. For example:
-    #     # new_products_path == '/productos/nuevo'
-    #     # bids_product_path(1) == '/productos/1/licitacoes'
-    #     map.resources :products, :as => 'productos', :member => { :bids => :get }, :path_names => { :new => 'nuevo', :bids => 'licitacoes' }
-    #
-    #   You can also set default action names from an environment, like this:
-    #     config.action_controller.resources_path_names = { :new => 'nuevo', :edit => 'editar' }
-    #
-    # * <tt>:path_prefix</tt> - Set a prefix to the routes with required route variables.
-    #
-    #   Weblog comments usually belong to a post, so you might use +resources+ like:
-    #
-    #     map.resources :articles
-    #     map.resources :comments, :path_prefix => '/articles/:article_id'
-    #
-    #   You can nest +resources+ calls to set this automatically:
-    #
-    #     map.resources :articles do |article|
-    #       article.resources :comments
-    #     end
-    #
-    #   The comment \resources work the same, but must now include a value for <tt>:article_id</tt>.
-    #
-    #     article_comments_url(@article)
-    #     article_comment_url(@article, @comment)
-    #
-    #     article_comments_url(:article_id => @article)
-    #     article_comment_url(:article_id => @article, :id => @comment)
-    #
-    #   If you don't want to load all objects from the database you might want to use the <tt>article_id</tt> directly:
-    #
-    #     articles_comments_url(@comment.article_id, @comment)
-    #
-    # * <tt>:name_prefix</tt> - Define a prefix for all generated routes, usually ending in an underscore.
-    #   Use this if you have named routes that may clash.
-    #
-    #     map.resources :tags, :path_prefix => '/books/:book_id', :name_prefix => 'book_'
-    #     map.resources :tags, :path_prefix => '/toys/:toy_id',   :name_prefix => 'toy_'
-    #
-    # You may also use <tt>:name_prefix</tt> to override the generic named routes in a nested \resource:
-    #
-    #   map.resources :articles do |article|
-    #     article.resources :comments, :name_prefix => nil
-    #   end
-    #
-    # This will yield named \resources like so:
-    #
-    #   comments_url(@article)
-    #   comment_url(@article, @comment)
-    #
-    # * <tt>:shallow</tt> - If true, paths for nested resources which reference a specific member
-    #   (ie. those with an :id parameter) will not use the parent path prefix or name prefix.
-    #
-    # The <tt>:shallow</tt> option is inherited by any nested resource(s).
-    #
-    # For example, 'users', 'posts' and 'comments' all use shallow paths with the following nested resources:
-    #
-    #   map.resources :users, :shallow => true do |user|
-    #     user.resources :posts do |post|
-    #       post.resources :comments
-    #     end
-    #   end
-    #   # --> GET /users/1/posts (maps to the PostsController#index action as usual)
-    #   #     also adds the usual named route called "user_posts"
-    #   # --> GET /posts/2 (maps to the PostsController#show action as if it were not nested)
-    #   #     also adds the named route called "post"
-    #   # --> GET /posts/2/comments (maps to the CommentsController#index action)
-    #   #     also adds the named route called "post_comments"
-    #   # --> GET /comments/2 (maps to the CommentsController#show action as if it were not nested)
-    #   #     also adds the named route called "comment"
-    #
-    # You may also use <tt>:shallow</tt> in combination with the +has_one+ and +has_many+ shorthand notations like:
-    #
-    #   map.resources :users, :has_many => { :posts => :comments }, :shallow => true
-    #
-    # * <tt>:only</tt> and <tt>:except</tt> - Specify which of the seven default actions should be routed to.
-    #
-    # <tt>:only</tt> and <tt>:except</tt> may be set to <tt>:all</tt>, <tt>:none</tt>, an action name or a
-    # list of action names. By default, routes are generated for all seven actions.
-    #
-    # For example:
-    #
-    #   map.resources :posts, :only => [:index, :show] do |post|
-    #     post.resources :comments, :except => [:update, :destroy]
-    #   end
-    #   # --> GET /posts (maps to the PostsController#index action)
-    #   # --> POST /posts (fails)
-    #   # --> GET /posts/1 (maps to the PostsController#show action)
-    #   # --> DELETE /posts/1 (fails)
-    #   # --> POST /posts/1/comments (maps to the CommentsController#create action)
-    #   # --> PUT /posts/1/comments/1 (fails)
-    #
-    # If <tt>map.resources</tt> is called with multiple resources, they all get the same options applied.
-    #
-    # Examples:
-    #
-    #   map.resources :messages, :path_prefix => "/thread/:thread_id"
-    #   # --> GET /thread/7/messages/1
-    #
-    #   map.resources :messages, :collection => { :rss => :get }
-    #   # --> GET /messages/rss (maps to the #rss action)
-    #   #     also adds a named route called "rss_messages"
-    #
-    #   map.resources :messages, :member => { :mark => :post }
-    #   # --> POST /messages/1/mark (maps to the #mark action)
-    #   #     also adds a named route called "mark_message"
-    #
-    #   map.resources :messages, :new => { :preview => :post }
-    #   # --> POST /messages/new/preview (maps to the #preview action)
-    #   #     also adds a named route called "preview_new_message"
-    #
-    #   map.resources :messages, :new => { :new => :any, :preview => :post }
-    #   # --> POST /messages/new/preview (maps to the #preview action)
-    #   #     also adds a named route called "preview_new_message"
-    #   # --> /messages/new can be invoked via any request method
-    #
-    #   map.resources :messages, :controller => "categories",
-    #         :path_prefix => "/category/:category_id",
-    #         :name_prefix => "category_"
-    #   # --> GET /categories/7/messages/1
-    #   #     has named route "category_message"
-    #
-    # The +resources+ method sets HTTP method restrictions on the routes it generates. For example, making an
-    # HTTP POST on <tt>new_message_url</tt> will raise a RoutingError exception. The default route in
-    # <tt>config/routes.rb</tt> overrides this and allows invalid HTTP methods for \resource routes.
-    def resources(*entities, &block)
-      options = entities.extract_options!
-      entities.each { |entity| map_resource(entity, options.dup, &block) }
-    end
-
-    # Creates named routes for implementing verb-oriented controllers for a singleton \resource.
-    # A singleton \resource is global to its current context.  For unnested singleton \resources,
-    # the \resource is global to the current user visiting the application, such as a user's
-    # <tt>/account</tt> profile.  For nested singleton \resources, the \resource is global to its parent
-    # \resource, such as a <tt>projects</tt> \resource that <tt>has_one :project_manager</tt>.
-    # The <tt>project_manager</tt> should be mapped as a singleton \resource under <tt>projects</tt>:
-    #
-    #   map.resources :projects do |project|
-    #     project.resource :project_manager
-    #   end
-    #
-    # See +resources+ for general conventions.  These are the main differences:
-    # * A singular name is given to <tt>map.resource</tt>.  The default controller name is still taken from the plural name.
-    # * To specify a custom plural name, use the <tt>:plural</tt> option.  There is no <tt>:singular</tt> option.
-    # * No default index route is created for the singleton \resource controller.
-    # * When nesting singleton \resources, only the singular name is used as the path prefix (example: 'account/messages/1')
-    #
-    # For example:
-    #
-    #   map.resource :account
-    #
-    # maps these actions in the Accounts controller:
-    #
-    #   class AccountsController < ActionController::Base
-    #     # GET new_account_url
-    #     def new
-    #       # return an HTML form for describing the new account
-    #     end
-    #
-    #     # POST account_url
-    #     def create
-    #       # create an account
-    #     end
-    #
-    #     # GET account_url
-    #     def show
-    #       # find and return the account
-    #     end
-    #
-    #     # GET edit_account_url
-    #     def edit
-    #       # return an HTML form for editing the account
-    #     end
-    #
-    #     # PUT account_url
-    #     def update
-    #       # find and update the account
-    #     end
-    #
-    #     # DELETE account_url
-    #     def destroy
-    #       # delete the account
-    #     end
-    #   end
-    #
-    # Along with the routes themselves, +resource+ generates named routes for
-    # use in controllers and views. <tt>map.resource :account</tt> produces
-    # these named routes and helpers:
-    #
-    #   Named Route   Helpers
-    #   ============  =============================================
-    #   account       account_url, hash_for_account_url,
-    #                 account_path, hash_for_account_path
-    #
-    #   new_account   new_account_url, hash_for_new_account_url,
-    #                 new_account_path, hash_for_new_account_path
-    #
-    #   edit_account  edit_account_url, hash_for_edit_account_url,
-    #                 edit_account_path, hash_for_edit_account_path
-    def resource(*entities, &block)
-      options = entities.extract_options!
-      entities.each { |entity| map_singleton_resource(entity, options.dup, &block) }
-    end
-
-    private
-      def map_resource(entities, options = {}, &block)
-        resource = Resource.new(entities, options)
-
-        with_options :controller => resource.controller do |map|
-          map_associations(resource, options)
-
-          if block_given?
-            with_options(options.slice(*INHERITABLE_OPTIONS).merge(:path_prefix => resource.nesting_path_prefix, :name_prefix => resource.nesting_name_prefix), &block)
-          end
-
-          map_collection_actions(map, resource)
-          map_default_collection_actions(map, resource)
-          map_new_actions(map, resource)
-          map_member_actions(map, resource)
-        end
-      end
-
-      def map_singleton_resource(entities, options = {}, &block)
-        resource = SingletonResource.new(entities, options)
-
-        with_options :controller => resource.controller do |map|
-          map_associations(resource, options)
-
-          if block_given?
-            with_options(options.slice(*INHERITABLE_OPTIONS).merge(:path_prefix => resource.nesting_path_prefix, :name_prefix => resource.nesting_name_prefix), &block)
-          end
-
-          map_collection_actions(map, resource)
-          map_new_actions(map, resource)
-          map_member_actions(map, resource)
-          map_default_singleton_actions(map, resource)
-        end
-      end
-
-      def map_associations(resource, options)
-        map_has_many_associations(resource, options.delete(:has_many), options) if options[:has_many]
-
-        path_prefix = "#{options.delete(:path_prefix)}#{resource.nesting_path_prefix}"
-        name_prefix = "#{options.delete(:name_prefix)}#{resource.nesting_name_prefix}"
-
-        Array(options[:has_one]).each do |association|
-          resource(association, options.slice(*INHERITABLE_OPTIONS).merge(:path_prefix => path_prefix, :name_prefix => name_prefix))
-        end
-      end
-
-      def map_has_many_associations(resource, associations, options)
-        case associations
-        when Hash
-          associations.each do |association,has_many|
-            map_has_many_associations(resource, association, options.merge(:has_many => has_many))
-          end
-        when Array
-          associations.each do |association|
-            map_has_many_associations(resource, association, options)
-          end
-        when Symbol, String
-          resources(associations, options.slice(*INHERITABLE_OPTIONS).merge(:path_prefix => resource.nesting_path_prefix, :name_prefix => resource.nesting_name_prefix, :has_many => options[:has_many]))
-        else
-        end
-      end
-
-      def map_collection_actions(map, resource)
-        resource.collection_methods.each do |method, actions|
-          actions.each do |action|
-            [method].flatten.each do |m|
-              action_path = resource.options[:path_names][action] if resource.options[:path_names].is_a?(Hash)
-              action_path ||= action
-
-              map_resource_routes(map, resource, action, "#{resource.path}#{resource.action_separator}#{action_path}", "#{action}_#{resource.name_prefix}#{resource.plural}", m)
-            end
-          end
-        end
-      end
-
-      def map_default_collection_actions(map, resource)
-        index_route_name = "#{resource.name_prefix}#{resource.plural}"
-
-        if resource.uncountable?
-          index_route_name << "_index"
-        end
-
-        map_resource_routes(map, resource, :index, resource.path, index_route_name)
-        map_resource_routes(map, resource, :create, resource.path, index_route_name)
-      end
-
-      def map_default_singleton_actions(map, resource)
-        map_resource_routes(map, resource, :create, resource.path, "#{resource.shallow_name_prefix}#{resource.singular}")
-      end
-
-      def map_new_actions(map, resource)
-        resource.new_methods.each do |method, actions|
-          actions.each do |action|
-            route_path = resource.new_path
-            route_name = "new_#{resource.name_prefix}#{resource.singular}"
-
-            unless action == :new
-              route_path = "#{route_path}#{resource.action_separator}#{action}"
-              route_name = "#{action}_#{route_name}"
-            end
-
-            map_resource_routes(map, resource, action, route_path, route_name, method)
-          end
-        end
-      end
-
-      def map_member_actions(map, resource)
-        resource.member_methods.each do |method, actions|
-          actions.each do |action|
-            [method].flatten.each do |m|
-              action_path = resource.options[:path_names][action] if resource.options[:path_names].is_a?(Hash)
-              action_path ||= Base.resources_path_names[action] || action
-
-              map_resource_routes(map, resource, action, "#{resource.member_path}#{resource.action_separator}#{action_path}", "#{action}_#{resource.shallow_name_prefix}#{resource.singular}", m, { :force_id => true })
-            end
-          end
-        end
-
-        route_path = "#{resource.shallow_name_prefix}#{resource.singular}"
-        map_resource_routes(map, resource, :show, resource.member_path, route_path)
-        map_resource_routes(map, resource, :update, resource.member_path, route_path)
-        map_resource_routes(map, resource, :destroy, resource.member_path, route_path)
-      end
-
-      def map_resource_routes(map, resource, action, route_path, route_name = nil, method = nil, resource_options = {} )
-        if resource.has_action?(action)
-          action_options = action_options_for(action, resource, method, resource_options)
-          formatted_route_path = "#{route_path}.:format"
-
-          if route_name && @set.named_routes[route_name.to_sym].nil?
-            map.named_route(route_name, formatted_route_path, action_options)
-          else
-            map.connect(formatted_route_path, action_options)
-          end
-        end
-      end
-
-      def add_conditions_for(conditions, method)
-        returning({:conditions => conditions.dup}) do |options|
-          options[:conditions][:method] = method unless method == :any
-        end
-      end
-
-      def action_options_for(action, resource, method = nil, resource_options = {})
-        default_options = { :action => action.to_s }
-        require_id = !resource.kind_of?(SingletonResource)
-        force_id = resource_options[:force_id] && !resource.kind_of?(SingletonResource)
-
-        case default_options[:action]
-          when "index", "new"; default_options.merge(add_conditions_for(resource.conditions, method || :get)).merge(resource.requirements)
-          when "create";       default_options.merge(add_conditions_for(resource.conditions, method || :post)).merge(resource.requirements)
-          when "show", "edit"; default_options.merge(add_conditions_for(resource.conditions, method || :get)).merge(resource.requirements(require_id))
-          when "update";       default_options.merge(add_conditions_for(resource.conditions, method || :put)).merge(resource.requirements(require_id))
-          when "destroy";      default_options.merge(add_conditions_for(resource.conditions, method || :delete)).merge(resource.requirements(require_id))
-          else                 default_options.merge(add_conditions_for(resource.conditions, method)).merge(resource.requirements(force_id))
-        end
-      end
-  end
-end
diff --git a/actionpack/lib/action_controller/routing/url_rewriter.rb b/actionpack/lib/action_controller/url_rewriter.rb
index 52b66c9303..52b66c9303 100644
--- a/actionpack/lib/action_controller/routing/url_rewriter.rb
+++ b/actionpack/lib/action_controller/url_rewriter.rb
diff --git a/actionpack/lib/action_dispatch.rb b/actionpack/lib/action_dispatch.rb
index 11cd812695..259814a322 100644
--- a/actionpack/lib/action_dispatch.rb
+++ b/actionpack/lib/action_dispatch.rb
@@ -41,6 +41,8 @@ module ActionDispatch
   autoload :Static, 'action_dispatch/middleware/static'
   autoload :StringCoercion, 'action_dispatch/middleware/string_coercion'
 
+  autoload :Routing, 'action_dispatch/routing'
+
   autoload :Assertions, 'action_dispatch/testing/assertions'
   autoload :Integration, 'action_dispatch/testing/integration'
   autoload :IntegrationTest, 'action_dispatch/testing/integration'
diff --git a/actionpack/lib/action_controller/routing.rb b/actionpack/lib/action_dispatch/routing.rb
index 979a4ad8c9..5a8df76326 100644
--- a/actionpack/lib/action_controller/routing.rb
+++ b/actionpack/lib/action_dispatch/routing.rb
@@ -2,9 +2,8 @@ require 'active_support/core_ext/object/conversions'
 require 'active_support/core_ext/boolean/conversions'
 require 'active_support/core_ext/nil/conversions'
 require 'active_support/core_ext/regexp'
-require 'action_controller/routing/route_set'
 
-module ActionController
+module ActionDispatch
   # == Routing
   #
   # The routing module provides URL rewriting in native Ruby. It's a way to
@@ -261,6 +260,9 @@ module ActionController
   # Run <tt>rake routes</tt>.
   #
   module Routing
+    autoload :Resources, 'action_dispatch/routing/resources'
+    autoload :RouteSet, 'action_dispatch/routing/route_set'
+
     SEPARATORS = %w( / . ? )
 
     HTTP_METHODS = [:get, :head, :post, :put, :delete, :options]
@@ -273,7 +275,7 @@ module ActionController
 
     # A helper module to hold URL related helpers.
     module Helpers
-      include PolymorphicRoutes
+      include ActionController::PolymorphicRoutes
     end
 
     class << self
@@ -365,13 +367,11 @@ module ActionController
       end
     end
 
-    Routes = RouteSet.new
-
     ActiveSupport::Inflector.module_eval do
       # Ensures that routes are reloaded when Rails inflections are updated.
       def inflections_with_route_reloading(&block)
         returning(inflections_without_route_reloading(&block)) {
-          ActionController::Routing::Routes.reload! if block_given?
+          ActionDispatch::Routing::Routes.reload! if block_given?
         }
       end
 
diff --git a/actionpack/lib/action_dispatch/routing/resources.rb b/actionpack/lib/action_dispatch/routing/resources.rb
new file mode 100644
index 0000000000..ada0d0a648
--- /dev/null
+++ b/actionpack/lib/action_dispatch/routing/resources.rb
@@ -0,0 +1,687 @@
+require 'active_support/core_ext/hash/slice'
+require 'active_support/core_ext/object/try'
+
+module ActionDispatch
+  module Routing
+    # == Overview
+    #
+    # ActionController::Resources are a way of defining RESTful \resources.  A RESTful \resource, in basic terms,
+    # is something that can be pointed at and it will respond with a representation of the data requested.
+    # In real terms this could mean a user with a browser requests an HTML page, or that a desktop application
+    # requests XML data.
+    #
+    # RESTful design is based on the assumption that there are four generic verbs that a user of an
+    # application can request from a \resource (the noun).
+    #
+    # \Resources can be requested using four basic HTTP verbs (GET, POST, PUT, DELETE), the method used
+    # denotes the type of action that should take place.
+    #
+    # === The Different Methods and their Usage
+    #
+    # * GET    - Requests for a \resource, no saving or editing of a \resource should occur in a GET request.
+    # * POST   - Creation of \resources.
+    # * PUT    - Editing of attributes on a \resource.
+    # * DELETE - Deletion of a \resource.
+    #
+    # === Examples
+    #
+    #   # A GET request on the Posts resource is asking for all Posts
+    #   GET /posts
+    #
+    #   # A GET request on a single Post resource is asking for that particular Post
+    #   GET /posts/1
+    #
+    #   # A POST request on the Posts resource is asking for a Post to be created with the supplied details
+    #   POST /posts # with => { :post => { :title => "My Whizzy New Post", :body => "I've got a brand new combine harvester" } }
+    #
+    #   # A PUT request on a single Post resource is asking for a Post to be updated
+    #   PUT /posts # with => { :id => 1, :post => { :title => "Changed Whizzy Title" } }
+    #
+    #   # A DELETE request on a single Post resource is asking for it to be deleted
+    #   DELETE /posts # with => { :id => 1 }
+    #
+    # By using the REST convention, users of our application can assume certain things about how the data
+    # is requested and how it is returned.  Rails simplifies the routing part of RESTful design by
+    # supplying you with methods to create them in your routes.rb file.
+    #
+    # Read more about REST at http://en.wikipedia.org/wiki/Representational_State_Transfer
+    module Resources
+      INHERITABLE_OPTIONS = :namespace, :shallow
+
+      class Resource #:nodoc:
+        DEFAULT_ACTIONS = :index, :create, :new, :edit, :show, :update, :destroy
+
+        attr_reader :collection_methods, :member_methods, :new_methods
+        attr_reader :path_prefix, :name_prefix, :path_segment
+        attr_reader :plural, :singular
+        attr_reader :options
+
+        def initialize(entities, options)
+          @plural   ||= entities
+          @singular ||= options[:singular] || plural.to_s.singularize
+          @path_segment = options.delete(:as) || @plural
+
+          @options = options
+
+          arrange_actions
+          add_default_actions
+          set_allowed_actions
+          set_prefixes
+        end
+
+        def controller
+          @controller ||= "#{options[:namespace]}#{(options[:controller] || plural).to_s}"
+        end
+
+        def requirements(with_id = false)
+          @requirements   ||= @options[:requirements] || {}
+          @id_requirement ||= { :id => @requirements.delete(:id) || /[^#{Routing::SEPARATORS.join}]+/ }
+
+          with_id ? @requirements.merge(@id_requirement) : @requirements
+        end
+
+        def conditions
+          @conditions ||= @options[:conditions] || {}
+        end
+
+        def path
+          @path ||= "#{path_prefix}/#{path_segment}"
+        end
+
+        def new_path
+          new_action   = self.options[:path_names][:new] if self.options[:path_names]
+          new_action ||= ActionController::Base.resources_path_names[:new]
+          @new_path  ||= "#{path}/#{new_action}"
+        end
+
+        def shallow_path_prefix
+          @shallow_path_prefix ||= @options[:shallow] ? @options[:namespace].try(:sub, /\/$/, '') : path_prefix
+        end
+
+        def member_path
+          @member_path ||= "#{shallow_path_prefix}/#{path_segment}/:id"
+        end
+
+        def nesting_path_prefix
+          @nesting_path_prefix ||= "#{shallow_path_prefix}/#{path_segment}/:#{singular}_id"
+        end
+
+        def shallow_name_prefix
+          @shallow_name_prefix ||= @options[:shallow] ? @options[:namespace].try(:gsub, /\//, '_') : name_prefix
+        end
+
+        def nesting_name_prefix
+          "#{shallow_name_prefix}#{singular}_"
+        end
+
+        def action_separator
+          @action_separator ||= ActionController::Base.resource_action_separator
+        end
+
+        def uncountable?
+          @singular.to_s == @plural.to_s
+        end
+
+        def has_action?(action)
+          !DEFAULT_ACTIONS.include?(action) || action_allowed?(action)
+        end
+
+        protected
+          def arrange_actions
+            @collection_methods = arrange_actions_by_methods(options.delete(:collection))
+            @member_methods     = arrange_actions_by_methods(options.delete(:member))
+            @new_methods        = arrange_actions_by_methods(options.delete(:new))
+          end
+
+          def add_default_actions
+            add_default_action(member_methods, :get, :edit)
+            add_default_action(new_methods, :get, :new)
+          end
+
+          def set_allowed_actions
+            only, except = @options.values_at(:only, :except)
+            @allowed_actions ||= {}
+
+            if only == :all || except == :none
+              only = nil
+              except = []
+            elsif only == :none || except == :all
+              only = []
+              except = nil
+            end
+
+            if only
+              @allowed_actions[:only] = Array(only).map {|a| a.to_sym }
+            elsif except
+              @allowed_actions[:except] = Array(except).map {|a| a.to_sym }
+            end
+          end
+
+          def action_allowed?(action)
+            only, except = @allowed_actions.values_at(:only, :except)
+            (!only || only.include?(action)) && (!except || !except.include?(action))
+          end
+
+          def set_prefixes
+            @path_prefix = options.delete(:path_prefix)
+            @name_prefix = options.delete(:name_prefix)
+          end
+
+          def arrange_actions_by_methods(actions)
+            (actions || {}).inject({}) do |flipped_hash, (key, value)|
+              (flipped_hash[value] ||= []) << key
+              flipped_hash
+            end
+          end
+
+          def add_default_action(collection, method, action)
+            (collection[method] ||= []).unshift(action)
+          end
+      end
+
+      class SingletonResource < Resource #:nodoc:
+        def initialize(entity, options)
+          @singular = @plural = entity
+          options[:controller] ||= @singular.to_s.pluralize
+          super
+        end
+
+        alias_method :shallow_path_prefix, :path_prefix
+        alias_method :shallow_name_prefix, :name_prefix
+        alias_method :member_path,         :path
+        alias_method :nesting_path_prefix, :path
+      end
+
+      # Creates named routes for implementing verb-oriented controllers
+      # for a collection \resource.
+      #
+      # For example:
+      #
+      #   map.resources :messages
+      #
+      # will map the following actions in the corresponding controller:
+      #
+      #   class MessagesController < ActionController::Base
+      #     # GET messages_url
+      #     def index
+      #       # return all messages
+      #     end
+      #
+      #     # GET new_message_url
+      #     def new
+      #       # return an HTML form for describing a new message
+      #     end
+      #
+      #     # POST messages_url
+      #     def create
+      #       # create a new message
+      #     end
+      #
+      #     # GET message_url(:id => 1)
+      #     def show
+      #       # find and return a specific message
+      #     end
+      #
+      #     # GET edit_message_url(:id => 1)
+      #     def edit
+      #       # return an HTML form for editing a specific message
+      #     end
+      #
+      #     # PUT message_url(:id => 1)
+      #     def update
+      #       # find and update a specific message
+      #     end
+      #
+      #     # DELETE message_url(:id => 1)
+      #     def destroy
+      #       # delete a specific message
+      #     end
+      #   end
+      #
+      # Along with the routes themselves, +resources+ generates named routes for use in
+      # controllers and views. <tt>map.resources :messages</tt> produces the following named routes and helpers:
+      #
+      #   Named Route   Helpers
+      #   ============  =====================================================
+      #   messages      messages_url, hash_for_messages_url,
+      #                 messages_path, hash_for_messages_path
+      #
+      #   message       message_url(id), hash_for_message_url(id),
+      #                 message_path(id), hash_for_message_path(id)
+      #
+      #   new_message   new_message_url, hash_for_new_message_url,
+      #                 new_message_path, hash_for_new_message_path
+      #
+      #   edit_message  edit_message_url(id), hash_for_edit_message_url(id),
+      #                 edit_message_path(id), hash_for_edit_message_path(id)
+      #
+      # You can use these helpers instead of +url_for+ or methods that take +url_for+ parameters. For example:
+      #
+      #   redirect_to :controller => 'messages', :action => 'index'
+      #   # and
+      #   <%= link_to "edit this message", :controller => 'messages', :action => 'edit', :id => @message.id %>
+      #
+      # now become:
+      #
+      #   redirect_to messages_url
+      #   # and
+      #   <%= link_to "edit this message", edit_message_url(@message) # calls @message.id automatically
+      #
+      # Since web browsers don't support the PUT and DELETE verbs, you will need to add a parameter '_method' to your
+      # form tags. The form helpers make this a little easier. For an update form with a <tt>@message</tt> object:
+      #
+      #   <%= form_tag message_path(@message), :method => :put %>
+      #
+      # or
+      #
+      #   <% form_for :message, @message, :url => message_path(@message), :html => {:method => :put} do |f| %>
+      #
+      # or
+      #
+      #   <% form_for @message do |f| %>
+      #
+      # which takes into account whether <tt>@message</tt> is a new record or not and generates the
+      # path and method accordingly.
+      #
+      # The +resources+ method accepts the following options to customize the resulting routes:
+      # * <tt>:collection</tt> - Add named routes for other actions that operate on the collection.
+      #   Takes a hash of <tt>#{action} => #{method}</tt>, where method is <tt>:get</tt>/<tt>:post</tt>/<tt>:put</tt>/<tt>:delete</tt>,
+      #   an array of any of the previous, or <tt>:any</tt> if the method does not matter.
+      #   These routes map to a URL like /messages/rss, with a route of +rss_messages_url+.
+      # * <tt>:member</tt> - Same as <tt>:collection</tt>, but for actions that operate on a specific member.
+      # * <tt>:new</tt> - Same as <tt>:collection</tt>, but for actions that operate on the new \resource action.
+      # * <tt>:controller</tt> - Specify the controller name for the routes.
+      # * <tt>:singular</tt> - Specify the singular name used in the member routes.
+      # * <tt>:requirements</tt> - Set custom routing parameter requirements; this is a hash of either
+      #     regular expressions (which must match for the route to match) or extra parameters. For example:
+      #
+      #       map.resource :profile, :path_prefix => ':name', :requirements => { :name => /[a-zA-Z]+/, :extra => 'value' }
+      #
+      #     will only match if the first part is alphabetic, and will pass the parameter :extra to the controller.
+      # * <tt>:conditions</tt> - Specify custom routing recognition conditions.  \Resources sets the <tt>:method</tt> value for the method-specific routes.
+      # * <tt>:as</tt> - Specify a different \resource name to use in the URL path. For example:
+      #     # products_path == '/productos'
+      #     map.resources :products, :as => 'productos' do |product|
+      #       # product_reviews_path(product) == '/productos/1234/comentarios'
+      #       product.resources :product_reviews, :as => 'comentarios'
+      #     end
+      #
+      # * <tt>:has_one</tt> - Specify nested \resources, this is a shorthand for mapping singleton \resources beneath the current.
+      # * <tt>:has_many</tt> - Same has <tt>:has_one</tt>, but for plural \resources.
+      #
+      #   You may directly specify the routing association with +has_one+ and +has_many+ like:
+      #
+      #     map.resources :notes, :has_one => :author, :has_many => [:comments, :attachments]
+      #
+      #   This is the same as:
+      #
+      #     map.resources :notes do |notes|
+      #       notes.resource  :author
+      #       notes.resources :comments
+      #       notes.resources :attachments
+      #     end
+      #
+      # * <tt>:path_names</tt> - Specify different path names for the actions. For example:
+      #     # new_products_path == '/productos/nuevo'
+      #     # bids_product_path(1) == '/productos/1/licitacoes'
+      #     map.resources :products, :as => 'productos', :member => { :bids => :get }, :path_names => { :new => 'nuevo', :bids => 'licitacoes' }
+      #
+      #   You can also set default action names from an environment, like this:
+      #     config.action_controller.resources_path_names = { :new => 'nuevo', :edit => 'editar' }
+      #
+      # * <tt>:path_prefix</tt> - Set a prefix to the routes with required route variables.
+      #
+      #   Weblog comments usually belong to a post, so you might use +resources+ like:
+      #
+      #     map.resources :articles
+      #     map.resources :comments, :path_prefix => '/articles/:article_id'
+      #
+      #   You can nest +resources+ calls to set this automatically:
+      #
+      #     map.resources :articles do |article|
+      #       article.resources :comments
+      #     end
+      #
+      #   The comment \resources work the same, but must now include a value for <tt>:article_id</tt>.
+      #
+      #     article_comments_url(@article)
+      #     article_comment_url(@article, @comment)
+      #
+      #     article_comments_url(:article_id => @article)
+      #     article_comment_url(:article_id => @article, :id => @comment)
+      #
+      #   If you don't want to load all objects from the database you might want to use the <tt>article_id</tt> directly:
+      #
+      #     articles_comments_url(@comment.article_id, @comment)
+      #
+      # * <tt>:name_prefix</tt> - Define a prefix for all generated routes, usually ending in an underscore.
+      #   Use this if you have named routes that may clash.
+      #
+      #     map.resources :tags, :path_prefix => '/books/:book_id', :name_prefix => 'book_'
+      #     map.resources :tags, :path_prefix => '/toys/:toy_id',   :name_prefix => 'toy_'
+      #
+      # You may also use <tt>:name_prefix</tt> to override the generic named routes in a nested \resource:
+      #
+      #   map.resources :articles do |article|
+      #     article.resources :comments, :name_prefix => nil
+      #   end
+      #
+      # This will yield named \resources like so:
+      #
+      #   comments_url(@article)
+      #   comment_url(@article, @comment)
+      #
+      # * <tt>:shallow</tt> - If true, paths for nested resources which reference a specific member
+      #   (ie. those with an :id parameter) will not use the parent path prefix or name prefix.
+      #
+      # The <tt>:shallow</tt> option is inherited by any nested resource(s).
+      #
+      # For example, 'users', 'posts' and 'comments' all use shallow paths with the following nested resources:
+      #
+      #   map.resources :users, :shallow => true do |user|
+      #     user.resources :posts do |post|
+      #       post.resources :comments
+      #     end
+      #   end
+      #   # --> GET /users/1/posts (maps to the PostsController#index action as usual)
+      #   #     also adds the usual named route called "user_posts"
+      #   # --> GET /posts/2 (maps to the PostsController#show action as if it were not nested)
+      #   #     also adds the named route called "post"
+      #   # --> GET /posts/2/comments (maps to the CommentsController#index action)
+      #   #     also adds the named route called "post_comments"
+      #   # --> GET /comments/2 (maps to the CommentsController#show action as if it were not nested)
+      #   #     also adds the named route called "comment"
+      #
+      # You may also use <tt>:shallow</tt> in combination with the +has_one+ and +has_many+ shorthand notations like:
+      #
+      #   map.resources :users, :has_many => { :posts => :comments }, :shallow => true
+      #
+      # * <tt>:only</tt> and <tt>:except</tt> - Specify which of the seven default actions should be routed to.
+      #
+      # <tt>:only</tt> and <tt>:except</tt> may be set to <tt>:all</tt>, <tt>:none</tt>, an action name or a
+      # list of action names. By default, routes are generated for all seven actions.
+      #
+      # For example:
+      #
+      #   map.resources :posts, :only => [:index, :show] do |post|
+      #     post.resources :comments, :except => [:update, :destroy]
+      #   end
+      #   # --> GET /posts (maps to the PostsController#index action)
+      #   # --> POST /posts (fails)
+      #   # --> GET /posts/1 (maps to the PostsController#show action)
+      #   # --> DELETE /posts/1 (fails)
+      #   # --> POST /posts/1/comments (maps to the CommentsController#create action)
+      #   # --> PUT /posts/1/comments/1 (fails)
+      #
+      # If <tt>map.resources</tt> is called with multiple resources, they all get the same options applied.
+      #
+      # Examples:
+      #
+      #   map.resources :messages, :path_prefix => "/thread/:thread_id"
+      #   # --> GET /thread/7/messages/1
+      #
+      #   map.resources :messages, :collection => { :rss => :get }
+      #   # --> GET /messages/rss (maps to the #rss action)
+      #   #     also adds a named route called "rss_messages"
+      #
+      #   map.resources :messages, :member => { :mark => :post }
+      #   # --> POST /messages/1/mark (maps to the #mark action)
+      #   #     also adds a named route called "mark_message"
+      #
+      #   map.resources :messages, :new => { :preview => :post }
+      #   # --> POST /messages/new/preview (maps to the #preview action)
+      #   #     also adds a named route called "preview_new_message"
+      #
+      #   map.resources :messages, :new => { :new => :any, :preview => :post }
+      #   # --> POST /messages/new/preview (maps to the #preview action)
+      #   #     also adds a named route called "preview_new_message"
+      #   # --> /messages/new can be invoked via any request method
+      #
+      #   map.resources :messages, :controller => "categories",
+      #         :path_prefix => "/category/:category_id",
+      #         :name_prefix => "category_"
+      #   # --> GET /categories/7/messages/1
+      #   #     has named route "category_message"
+      #
+      # The +resources+ method sets HTTP method restrictions on the routes it generates. For example, making an
+      # HTTP POST on <tt>new_message_url</tt> will raise a RoutingError exception. The default route in
+      # <tt>config/routes.rb</tt> overrides this and allows invalid HTTP methods for \resource routes.
+      def resources(*entities, &block)
+        options = entities.extract_options!
+        entities.each { |entity| map_resource(entity, options.dup, &block) }
+      end
+
+      # Creates named routes for implementing verb-oriented controllers for a singleton \resource.
+      # A singleton \resource is global to its current context.  For unnested singleton \resources,
+      # the \resource is global to the current user visiting the application, such as a user's
+      # <tt>/account</tt> profile.  For nested singleton \resources, the \resource is global to its parent
+      # \resource, such as a <tt>projects</tt> \resource that <tt>has_one :project_manager</tt>.
+      # The <tt>project_manager</tt> should be mapped as a singleton \resource under <tt>projects</tt>:
+      #
+      #   map.resources :projects do |project|
+      #     project.resource :project_manager
+      #   end
+      #
+      # See +resources+ for general conventions.  These are the main differences:
+      # * A singular name is given to <tt>map.resource</tt>.  The default controller name is still taken from the plural name.
+      # * To specify a custom plural name, use the <tt>:plural</tt> option.  There is no <tt>:singular</tt> option.
+      # * No default index route is created for the singleton \resource controller.
+      # * When nesting singleton \resources, only the singular name is used as the path prefix (example: 'account/messages/1')
+      #
+      # For example:
+      #
+      #   map.resource :account
+      #
+      # maps these actions in the Accounts controller:
+      #
+      #   class AccountsController < ActionController::Base
+      #     # GET new_account_url
+      #     def new
+      #       # return an HTML form for describing the new account
+      #     end
+      #
+      #     # POST account_url
+      #     def create
+      #       # create an account
+      #     end
+      #
+      #     # GET account_url
+      #     def show
+      #       # find and return the account
+      #     end
+      #
+      #     # GET edit_account_url
+      #     def edit
+      #       # return an HTML form for editing the account
+      #     end
+      #
+      #     # PUT account_url
+      #     def update
+      #       # find and update the account
+      #     end
+      #
+      #     # DELETE account_url
+      #     def destroy
+      #       # delete the account
+      #     end
+      #   end
+      #
+      # Along with the routes themselves, +resource+ generates named routes for
+      # use in controllers and views. <tt>map.resource :account</tt> produces
+      # these named routes and helpers:
+      #
+      #   Named Route   Helpers
+      #   ============  =============================================
+      #   account       account_url, hash_for_account_url,
+      #                 account_path, hash_for_account_path
+      #
+      #   new_account   new_account_url, hash_for_new_account_url,
+      #                 new_account_path, hash_for_new_account_path
+      #
+      #   edit_account  edit_account_url, hash_for_edit_account_url,
+      #                 edit_account_path, hash_for_edit_account_path
+      def resource(*entities, &block)
+        options = entities.extract_options!
+        entities.each { |entity| map_singleton_resource(entity, options.dup, &block) }
+      end
+
+      private
+        def map_resource(entities, options = {}, &block)
+          resource = Resource.new(entities, options)
+
+          with_options :controller => resource.controller do |map|
+            map_associations(resource, options)
+
+            if block_given?
+              with_options(options.slice(*INHERITABLE_OPTIONS).merge(:path_prefix => resource.nesting_path_prefix, :name_prefix => resource.nesting_name_prefix), &block)
+            end
+
+            map_collection_actions(map, resource)
+            map_default_collection_actions(map, resource)
+            map_new_actions(map, resource)
+            map_member_actions(map, resource)
+          end
+        end
+
+        def map_singleton_resource(entities, options = {}, &block)
+          resource = SingletonResource.new(entities, options)
+
+          with_options :controller => resource.controller do |map|
+            map_associations(resource, options)
+
+            if block_given?
+              with_options(options.slice(*INHERITABLE_OPTIONS).merge(:path_prefix => resource.nesting_path_prefix, :name_prefix => resource.nesting_name_prefix), &block)
+            end
+
+            map_collection_actions(map, resource)
+            map_new_actions(map, resource)
+            map_member_actions(map, resource)
+            map_default_singleton_actions(map, resource)
+          end
+        end
+
+        def map_associations(resource, options)
+          map_has_many_associations(resource, options.delete(:has_many), options) if options[:has_many]
+
+          path_prefix = "#{options.delete(:path_prefix)}#{resource.nesting_path_prefix}"
+          name_prefix = "#{options.delete(:name_prefix)}#{resource.nesting_name_prefix}"
+
+          Array(options[:has_one]).each do |association|
+            resource(association, options.slice(*INHERITABLE_OPTIONS).merge(:path_prefix => path_prefix, :name_prefix => name_prefix))
+          end
+        end
+
+        def map_has_many_associations(resource, associations, options)
+          case associations
+          when Hash
+            associations.each do |association,has_many|
+              map_has_many_associations(resource, association, options.merge(:has_many => has_many))
+            end
+          when Array
+            associations.each do |association|
+              map_has_many_associations(resource, association, options)
+            end
+          when Symbol, String
+            resources(associations, options.slice(*INHERITABLE_OPTIONS).merge(:path_prefix => resource.nesting_path_prefix, :name_prefix => resource.nesting_name_prefix, :has_many => options[:has_many]))
+          else
+          end
+        end
+
+        def map_collection_actions(map, resource)
+          resource.collection_methods.each do |method, actions|
+            actions.each do |action|
+              [method].flatten.each do |m|
+                action_path = resource.options[:path_names][action] if resource.options[:path_names].is_a?(Hash)
+                action_path ||= action
+
+                map_resource_routes(map, resource, action, "#{resource.path}#{resource.action_separator}#{action_path}", "#{action}_#{resource.name_prefix}#{resource.plural}", m)
+              end
+            end
+          end
+        end
+
+        def map_default_collection_actions(map, resource)
+          index_route_name = "#{resource.name_prefix}#{resource.plural}"
+
+          if resource.uncountable?
+            index_route_name << "_index"
+          end
+
+          map_resource_routes(map, resource, :index, resource.path, index_route_name)
+          map_resource_routes(map, resource, :create, resource.path, index_route_name)
+        end
+
+        def map_default_singleton_actions(map, resource)
+          map_resource_routes(map, resource, :create, resource.path, "#{resource.shallow_name_prefix}#{resource.singular}")
+        end
+
+        def map_new_actions(map, resource)
+          resource.new_methods.each do |method, actions|
+            actions.each do |action|
+              route_path = resource.new_path
+              route_name = "new_#{resource.name_prefix}#{resource.singular}"
+
+              unless action == :new
+                route_path = "#{route_path}#{resource.action_separator}#{action}"
+                route_name = "#{action}_#{route_name}"
+              end
+
+              map_resource_routes(map, resource, action, route_path, route_name, method)
+            end
+          end
+        end
+
+        def map_member_actions(map, resource)
+          resource.member_methods.each do |method, actions|
+            actions.each do |action|
+              [method].flatten.each do |m|
+                action_path = resource.options[:path_names][action] if resource.options[:path_names].is_a?(Hash)
+                action_path ||= ActionController::Base.resources_path_names[action] || action
+
+                map_resource_routes(map, resource, action, "#{resource.member_path}#{resource.action_separator}#{action_path}", "#{action}_#{resource.shallow_name_prefix}#{resource.singular}", m, { :force_id => true })
+              end
+            end
+          end
+
+          route_path = "#{resource.shallow_name_prefix}#{resource.singular}"
+          map_resource_routes(map, resource, :show, resource.member_path, route_path)
+          map_resource_routes(map, resource, :update, resource.member_path, route_path)
+          map_resource_routes(map, resource, :destroy, resource.member_path, route_path)
+        end
+
+        def map_resource_routes(map, resource, action, route_path, route_name = nil, method = nil, resource_options = {} )
+          if resource.has_action?(action)
+            action_options = action_options_for(action, resource, method, resource_options)
+            formatted_route_path = "#{route_path}.:format"
+
+            if route_name && @set.named_routes[route_name.to_sym].nil?
+              map.named_route(route_name, formatted_route_path, action_options)
+            else
+              map.connect(formatted_route_path, action_options)
+            end
+          end
+        end
+
+        def add_conditions_for(conditions, method)
+          returning({:conditions => conditions.dup}) do |options|
+            options[:conditions][:method] = method unless method == :any
+          end
+        end
+
+        def action_options_for(action, resource, method = nil, resource_options = {})
+          default_options = { :action => action.to_s }
+          require_id = !resource.kind_of?(SingletonResource)
+          force_id = resource_options[:force_id] && !resource.kind_of?(SingletonResource)
+
+          case default_options[:action]
+            when "index", "new"; default_options.merge(add_conditions_for(resource.conditions, method || :get)).merge(resource.requirements)
+            when "create";       default_options.merge(add_conditions_for(resource.conditions, method || :post)).merge(resource.requirements)
+            when "show", "edit"; default_options.merge(add_conditions_for(resource.conditions, method || :get)).merge(resource.requirements(require_id))
+            when "update";       default_options.merge(add_conditions_for(resource.conditions, method || :put)).merge(resource.requirements(require_id))
+            when "destroy";      default_options.merge(add_conditions_for(resource.conditions, method || :delete)).merge(resource.requirements(require_id))
+            else                 default_options.merge(add_conditions_for(resource.conditions, method)).merge(resource.requirements(force_id))
+          end
+        end
+    end
+  end
+end
diff --git a/actionpack/lib/action_controller/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb
index 8135b5811e..9e40108d00 100644
--- a/actionpack/lib/action_controller/routing/route_set.rb
+++ b/actionpack/lib/action_dispatch/routing/route_set.rb
@@ -1,11 +1,11 @@
 require 'rack/mount'
 require 'forwardable'
 
-module ActionController
+module ActionDispatch
   module Routing
     class RouteSet #:nodoc:
       NotFound = lambda { |env|
-        raise RoutingError, "No route matches #{env[::Rack::Mount::Const::PATH_INFO].inspect} with #{env.inspect}"
+        raise ActionController::RoutingError, "No route matches #{env[::Rack::Mount::Const::PATH_INFO].inspect} with #{env.inspect}"
       }
 
       PARAMETERS_KEY = 'action_dispatch.request.path_parameters'
@@ -59,14 +59,14 @@ module ActionController
       # Mapper instances have relatively few instance methods, in order to avoid
       # clashes with named routes.
       class Mapper #:doc:
-        include ActionController::Resources
+        include Routing::Resources
 
         def initialize(set) #:nodoc:
           @set = set
         end
 
         # Create an unnamed route with the provided +path+ and +options+. See
-        # ActionController::Routing for an introduction to routes.
+        # ActionDispatch::Routing for an introduction to routes.
         def connect(path, options = {})
           @set.add_route(path, options)
         end
@@ -427,7 +427,7 @@ module ActionController
           path = ::Rack::Mount::Strexp.compile(path, requirements, %w( / . ? ))
 
           if glob && !defaults[glob].blank?
-            raise RoutingError, "paths cannot have non-empty default values"
+            raise ActionController::RoutingError, "paths cannot have non-empty default values"
           end
         end
 
@@ -534,10 +534,10 @@ module ActionController
         elsif path
           path
         else
-          raise RoutingError, "No route matches #{options.inspect}"
+          raise ActionController::RoutingError, "No route matches #{options.inspect}"
         end
       rescue Rack::Mount::RoutingError
-        raise RoutingError, "No route matches #{options.inspect}"
+        raise ActionController::RoutingError, "No route matches #{options.inspect}"
       end
 
       def call(env)
@@ -557,9 +557,9 @@ module ActionController
         }
 
         if !HTTP_METHODS.include?(method)
-          raise NotImplemented.new(*allows)
+          raise ActionController::NotImplemented.new(*allows)
         elsif !allows.empty?
-          raise MethodNotAllowed.new(*allows)
+          raise ActionController::MethodNotAllowed.new(*allows)
         else
           raise e
         end
@@ -577,7 +577,7 @@ module ActionController
         begin
           env = Rack::MockRequest.env_for(path, {:method => method})
         rescue URI::InvalidURIError => e
-          raise RoutingError, e.message
+          raise ActionController::RoutingError, e.message
         end
 
         env['action_controller.recognize'] = true
diff --git a/actionpack/test/controller/resources_test.rb b/actionpack/test/controller/resources_test.rb
index 5b47de19ae..4f1bafbad1 100644
--- a/actionpack/test/controller/resources_test.rb
+++ b/actionpack/test/controller/resources_test.rb
@@ -41,7 +41,7 @@ class ResourcesTest < ActionController::TestCase
   end
 
   def test_should_arrange_actions
-    resource = ActionController::Resources::Resource.new(:messages,
+    resource = ActionDispatch::Routing::Resources::Resource.new(:messages,
       :collection => { :rss => :get, :reorder => :post, :csv => :post },
       :member     => { :rss => :get, :atom => :get, :upload => :post, :fix => :post },
       :new        => { :preview => :get, :draft => :get })
@@ -54,18 +54,18 @@ class ResourcesTest < ActionController::TestCase
   end
 
   def test_should_resource_controller_name_equal_resource_name_by_default
-    resource = ActionController::Resources::Resource.new(:messages, {})
+    resource = ActionDispatch::Routing::Resources::Resource.new(:messages, {})
     assert_equal 'messages', resource.controller
   end
 
   def test_should_resource_controller_name_equal_controller_option
-    resource = ActionController::Resources::Resource.new(:messages, :controller => 'posts')
+    resource = ActionDispatch::Routing::Resources::Resource.new(:messages, :controller => 'posts')
     assert_equal 'posts', resource.controller
   end
 
   def test_should_all_singleton_paths_be_the_same
     [ :path, :nesting_path_prefix, :member_path ].each do |method|
-      resource = ActionController::Resources::SingletonResource.new(:messages, :path_prefix => 'admin')
+      resource = ActionDispatch::Routing::Resources::SingletonResource.new(:messages, :path_prefix => 'admin')
       assert_equal 'admin/messages', resource.send(method)
     end
   end
@@ -121,7 +121,7 @@ class ResourcesTest < ActionController::TestCase
   end
 
   def test_override_paths_for_default_restful_actions
-    resource = ActionController::Resources::Resource.new(:messages,
+    resource = ActionDispatch::Routing::Resources::Resource.new(:messages,
       :path_names => {:new => 'nuevo', :edit => 'editar'})
     assert_equal resource.new_path, "#{resource.path}/nuevo"
   end
@@ -135,7 +135,7 @@ class ResourcesTest < ActionController::TestCase
 
   def test_with_custom_conditions
     with_restful_routing :messages, :conditions => { :subdomain => 'app' } do
-      assert ActionController::Routing::Routes.recognize_path("/messages", :method => :get, :subdomain => 'app')
+      assert ActionDispatch::Routing::Routes.recognize_path("/messages", :method => :get, :subdomain => 'app')
     end
   end