From a1ce52effccae4851593f1d9b83ca9bf826bf338 Mon Sep 17 00:00:00 2001 From: Joshua Peek Date: Tue, 20 Oct 2009 12:31:23 -0500 Subject: New routing dsl --- actionpack/lib/action_dispatch/routing.rb | 1 + .../action_dispatch/routing/deprecated_mapper.rb | 879 +++++++++++++++++ actionpack/lib/action_dispatch/routing/mapper.rb | 1004 +++++--------------- .../lib/action_dispatch/routing/route_set.rb | 4 +- 4 files changed, 1101 insertions(+), 787 deletions(-) create mode 100644 actionpack/lib/action_dispatch/routing/deprecated_mapper.rb (limited to 'actionpack/lib') diff --git a/actionpack/lib/action_dispatch/routing.rb b/actionpack/lib/action_dispatch/routing.rb index 0647d051cb..3803929847 100644 --- a/actionpack/lib/action_dispatch/routing.rb +++ b/actionpack/lib/action_dispatch/routing.rb @@ -260,6 +260,7 @@ module ActionDispatch # Run rake routes. # module Routing + autoload :DeprecatedMapper, 'action_dispatch/routing/deprecated_mapper' autoload :Mapper, 'action_dispatch/routing/mapper' autoload :RouteSet, 'action_dispatch/routing/route_set' diff --git a/actionpack/lib/action_dispatch/routing/deprecated_mapper.rb b/actionpack/lib/action_dispatch/routing/deprecated_mapper.rb new file mode 100644 index 0000000000..f2a1f10fa7 --- /dev/null +++ b/actionpack/lib/action_dispatch/routing/deprecated_mapper.rb @@ -0,0 +1,879 @@ +module ActionDispatch + module Routing + # Mapper instances are used to build routes. The object passed to the draw + # block in config/routes.rb is a Mapper instance. + # + # Mapper instances have relatively few instance methods, in order to avoid + # clashes with named routes. + # + # == 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 + class DeprecatedMapper #:doc: + def initialize(set) #:nodoc: + @set = set + end + + # Create an unnamed route with the provided +path+ and +options+. See + # ActionDispatch::Routing for an introduction to routes. + def connect(path, options = {}) + options = options.dup + + if conditions = options.delete(:conditions) + conditions = conditions.dup + method = [conditions.delete(:method)].flatten.compact + method.map! { |m| + m = m.to_s.upcase + + if m == "HEAD" + raise ArgumentError, "HTTP method HEAD is invalid in route conditions. Rails processes HEAD requests the same as GETs, returning just the response headers" + end + + unless HTTP_METHODS.include?(m.downcase.to_sym) + raise ArgumentError, "Invalid HTTP method specified in route conditions" + end + + m + } + + if method.length > 1 + method = Regexp.union(*method) + elsif method.length == 1 + method = method.first + else + method = nil + end + end + + path_prefix = options.delete(:path_prefix) + name_prefix = options.delete(:name_prefix) + namespace = options.delete(:namespace) + + name = options.delete(:_name) + name = "#{name_prefix}#{name}" if name_prefix + + requirements = options.delete(:requirements) || {} + defaults = options.delete(:defaults) || {} + options.each do |k, v| + if v.is_a?(Regexp) + if value = options.delete(k) + requirements[k.to_sym] = value + end + else + value = options.delete(k) + defaults[k.to_sym] = value.is_a?(Symbol) ? value : value.to_param + end + end + + requirements.each do |_, requirement| + if requirement.source =~ %r{\A(\\A|\^)|(\\Z|\\z|\$)\Z} + raise ArgumentError, "Regexp anchor characters are not allowed in routing requirements: #{requirement.inspect}" + end + if requirement.multiline? + raise ArgumentError, "Regexp multiline option not allowed in routing requirements: #{requirement.inspect}" + end + end + + possible_names = Routing.possible_controllers.collect { |n| Regexp.escape(n) } + requirements[:controller] ||= Regexp.union(*possible_names) + + if defaults[:controller] + defaults[:action] ||= 'index' + defaults[:controller] = defaults[:controller].to_s + defaults[:controller] = "#{namespace}#{defaults[:controller]}" if namespace + end + + if defaults[:action] + defaults[:action] = defaults[:action].to_s + end + + if path.is_a?(String) + path = "#{path_prefix}/#{path}" if path_prefix + path = path.gsub('.:format', '(.:format)') + path = optionalize_trailing_dynamic_segments(path, requirements, defaults) + glob = $1.to_sym if path =~ /\/\*(\w+)$/ + path = ::Rack::Mount::Utils.normalize_path(path) + path = ::Rack::Mount::Strexp.compile(path, requirements, %w( / . ? )) + + if glob && !defaults[glob].blank? + raise ActionController::RoutingError, "paths cannot have non-empty default values" + end + end + + app = Routing::RouteSet::Dispatcher.new(:defaults => defaults, :glob => glob) + + conditions = {} + conditions[:request_method] = method if method + conditions[:path_info] = path if path + + @set.add_route(app, conditions, defaults, name) + end + + def optionalize_trailing_dynamic_segments(path, requirements, defaults) #:nodoc: + path = (path =~ /^\//) ? path.dup : "/#{path}" + optional, segments = true, [] + + required_segments = requirements.keys + required_segments -= defaults.keys.compact + + old_segments = path.split('/') + old_segments.shift + length = old_segments.length + + old_segments.reverse.each_with_index do |segment, index| + required_segments.each do |required| + if segment =~ /#{required}/ + optional = false + break + end + end + + if optional + if segment == ":id" && segments.include?(":action") + optional = false + elsif segment == ":controller" || segment == ":action" || segment == ":id" + # Ignore + elsif !(segment =~ /^:\w+$/) && + !(segment =~ /^:\w+\(\.:format\)$/) + optional = false + elsif segment =~ /^:(\w+)$/ + if defaults.has_key?($1.to_sym) + defaults.delete($1.to_sym) + else + optional = false + end + end + end + + if optional && index < length - 1 + segments.unshift('(/', segment) + segments.push(')') + elsif optional + segments.unshift('/(', segment) + segments.push(')') + else + segments.unshift('/', segment) + end + end + + segments.join + end + private :optionalize_trailing_dynamic_segments + + # Creates a named route called "root" for matching the root level request. + def root(options = {}) + if options.is_a?(Symbol) + if source_route = @set.named_routes.routes[options] + options = source_route.defaults.merge({ :conditions => source_route.conditions }) + end + end + named_route("root", '', options) + end + + def named_route(name, path, options = {}) #:nodoc: + options[:_name] = name + connect(path, options) + end + + # Enables the use of resources in a module by setting the name_prefix, path_prefix, and namespace for the model. + # Example: + # + # map.namespace(:admin) do |admin| + # admin.resources :products, + # :has_many => [ :tags, :images, :variants ] + # end + # + # This will create +admin_products_url+ pointing to "admin/products", which will look for an Admin::ProductsController. + # It'll also create +admin_product_tags_url+ pointing to "admin/products/#{product_id}/tags", which will look for + # Admin::TagsController. + def namespace(name, options = {}, &block) + if options[:namespace] + with_options({:path_prefix => "#{options.delete(:path_prefix)}/#{name}", :name_prefix => "#{options.delete(:name_prefix)}#{name}_", :namespace => "#{options.delete(:namespace)}#{name}/" }.merge(options), &block) + else + with_options({:path_prefix => name, :name_prefix => "#{name}_", :namespace => "#{name}/" }.merge(options), &block) + end + end + + def method_missing(route_name, *args, &proc) #:nodoc: + super unless args.length >= 1 && proc.nil? + named_route(route_name, *args) + end + + 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. map.resources :messages 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 @message 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 @message 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: + # * :collection - Add named routes for other actions that operate on the collection. + # Takes a hash of #{action} => #{method}, where method is :get/:post/:put/:delete, + # an array of any of the previous, or :any if the method does not matter. + # These routes map to a URL like /messages/rss, with a route of +rss_messages_url+. + # * :member - Same as :collection, but for actions that operate on a specific member. + # * :new - Same as :collection, but for actions that operate on the new \resource action. + # * :controller - Specify the controller name for the routes. + # * :singular - Specify the singular name used in the member routes. + # * :requirements - 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. + # * :conditions - Specify custom routing recognition conditions. \Resources sets the :method value for the method-specific routes. + # * :as - 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 + # + # * :has_one - Specify nested \resources, this is a shorthand for mapping singleton \resources beneath the current. + # * :has_many - Same has :has_one, 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 + # + # * :path_names - 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' } + # + # * :path_prefix - 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 :article_id. + # + # 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 article_id directly: + # + # articles_comments_url(@comment.article_id, @comment) + # + # * :name_prefix - 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 :name_prefix 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) + # + # * :shallow - 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 :shallow 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 :shallow in combination with the +has_one+ and +has_many+ shorthand notations like: + # + # map.resources :users, :has_many => { :posts => :comments }, :shallow => true + # + # * :only and :except - Specify which of the seven default actions should be routed to. + # + # :only and :except may be set to :all, :none, 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 map.resources 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 new_message_url will raise a RoutingError exception. The default route in + # config/routes.rb 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 + # /account profile. For nested singleton \resources, the \resource is global to its parent + # \resource, such as a projects \resource that has_one :project_manager. + # The project_manager should be mapped as a singleton \resource under projects: + # + # 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 map.resource. The default controller name is still taken from the plural name. + # * To specify a custom plural name, use the :plural option. There is no :singular 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. map.resource :account 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_dispatch/routing/mapper.rb b/actionpack/lib/action_dispatch/routing/mapper.rb index 44afbb9cd7..ab4193266a 100644 --- a/actionpack/lib/action_dispatch/routing/mapper.rb +++ b/actionpack/lib/action_dispatch/routing/mapper.rb @@ -1,878 +1,312 @@ module ActionDispatch module Routing - # Mapper instances are used to build routes. The object passed to the draw - # block in config/routes.rb is a Mapper instance. - # - # Mapper instances have relatively few instance methods, in order to avoid - # clashes with named routes. - # - # == 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 - class Mapper #:doc: - def initialize(set) #:nodoc: - @set = set - end - - # Create an unnamed route with the provided +path+ and +options+. See - # ActionDispatch::Routing for an introduction to routes. - def connect(path, options = {}) - options = options.dup - - if conditions = options.delete(:conditions) - conditions = conditions.dup - method = [conditions.delete(:method)].flatten.compact - method.map! { |m| - m = m.to_s.upcase + class Mapper + module Resources + def resource(*resources, &block) + options = resources.last.is_a?(Hash) ? resources.pop : {} + + if resources.length > 1 + raise ArgumentError if block_given? + resources.each { |r| resource(r, options) } + return self + end - if m == "HEAD" - raise ArgumentError, "HTTP method HEAD is invalid in route conditions. Rails processes HEAD requests the same as GETs, returning just the response headers" - end + resource = resources.pop - unless HTTP_METHODS.include?(m.downcase.to_sym) - raise ArgumentError, "Invalid HTTP method specified in route conditions" + if @scope[:scope_level] == :resources + member do + resource(resource, options, &block) end - - m - } - - if method.length > 1 - method = Regexp.union(*method) - elsif method.length == 1 - method = method.first - else - method = nil + return self end - end - path_prefix = options.delete(:path_prefix) - name_prefix = options.delete(:name_prefix) - namespace = options.delete(:namespace) + controller(resource) do + namespace(resource) do + with_scope_level(:resource) do + yield if block_given? - name = options.delete(:_name) - name = "#{name_prefix}#{name}" if name_prefix - - requirements = options.delete(:requirements) || {} - defaults = options.delete(:defaults) || {} - options.each do |k, v| - if v.is_a?(Regexp) - if value = options.delete(k) - requirements[k.to_sym] = value + get "", :to => :show + post "", :to => :create + put "", :to => :update + delete "", :to => :destory + end end - else - value = options.delete(k) - defaults[k.to_sym] = value.is_a?(Symbol) ? value : value.to_param end - end - requirements.each do |_, requirement| - if requirement.source =~ %r{\A(\\A|\^)|(\\Z|\\z|\$)\Z} - raise ArgumentError, "Regexp anchor characters are not allowed in routing requirements: #{requirement.inspect}" - end - if requirement.multiline? - raise ArgumentError, "Regexp multiline option not allowed in routing requirements: #{requirement.inspect}" - end + self end - possible_names = Routing.possible_controllers.collect { |n| Regexp.escape(n) } - requirements[:controller] ||= Regexp.union(*possible_names) + def resources(*resources, &block) + options = resources.last.is_a?(Hash) ? resources.pop : {} - if defaults[:controller] - defaults[:action] ||= 'index' - defaults[:controller] = defaults[:controller].to_s - defaults[:controller] = "#{namespace}#{defaults[:controller]}" if namespace - end - - if defaults[:action] - defaults[:action] = defaults[:action].to_s - end - - if path.is_a?(String) - path = "#{path_prefix}/#{path}" if path_prefix - path = path.gsub('.:format', '(.:format)') - path = optionalize_trailing_dynamic_segments(path, requirements, defaults) - glob = $1.to_sym if path =~ /\/\*(\w+)$/ - path = ::Rack::Mount::Utils.normalize_path(path) - path = ::Rack::Mount::Strexp.compile(path, requirements, %w( / . ? )) - - if glob && !defaults[glob].blank? - raise ActionController::RoutingError, "paths cannot have non-empty default values" + if resources.length > 1 + raise ArgumentError if block_given? + resources.each { |r| resources(r, options) } + return self end - end - - app = Routing::RouteSet::Dispatcher.new(:defaults => defaults, :glob => glob) - conditions = {} - conditions[:request_method] = method if method - conditions[:path_info] = path if path - - @set.add_route(app, conditions, defaults, name) - end + resource = resources.pop - def optionalize_trailing_dynamic_segments(path, requirements, defaults) #:nodoc: - path = (path =~ /^\//) ? path.dup : "/#{path}" - optional, segments = true, [] - - required_segments = requirements.keys - required_segments -= defaults.keys.compact - - old_segments = path.split('/') - old_segments.shift - length = old_segments.length - - old_segments.reverse.each_with_index do |segment, index| - required_segments.each do |required| - if segment =~ /#{required}/ - optional = false - break + if @scope[:scope_level] == :resources + member do + resources(resource, options, &block) end + return self end - if optional - if segment == ":id" && segments.include?(":action") - optional = false - elsif segment == ":controller" || segment == ":action" || segment == ":id" - # Ignore - elsif !(segment =~ /^:\w+$/) && - !(segment =~ /^:\w+\(\.:format\)$/) - optional = false - elsif segment =~ /^:(\w+)$/ - if defaults.has_key?($1.to_sym) - defaults.delete($1.to_sym) - else - optional = false + controller(resource) do + namespace(resource) do + with_scope_level(:resources) do + yield if block_given? + + member do + get "", :to => :show + put "", :to => :update + delete "", :to => :destory + get "edit", :to => :edit + end + + collection do + get "", :to => :index + post "", :to => :create + get "new", :to => :new + end end end end - if optional && index < length - 1 - segments.unshift('(/', segment) - segments.push(')') - elsif optional - segments.unshift('/(', segment) - segments.push(')') - else - segments.unshift('/', segment) - end + self end - segments.join - end - private :optionalize_trailing_dynamic_segments - - # Creates a named route called "root" for matching the root level request. - def root(options = {}) - if options.is_a?(Symbol) - if source_route = @set.named_routes.routes[options] - options = source_route.defaults.merge({ :conditions => source_route.conditions }) + def collection + unless @scope[:scope_level] == :resources + raise ArgumentError, "can't use collection outside resources scope" end - end - named_route("root", '', options) - end - - def named_route(name, path, options = {}) #:nodoc: - options[:_name] = name - connect(path, options) - end - # Enables the use of resources in a module by setting the name_prefix, path_prefix, and namespace for the model. - # Example: - # - # map.namespace(:admin) do |admin| - # admin.resources :products, - # :has_many => [ :tags, :images, :variants ] - # end - # - # This will create +admin_products_url+ pointing to "admin/products", which will look for an Admin::ProductsController. - # It'll also create +admin_product_tags_url+ pointing to "admin/products/#{product_id}/tags", which will look for - # Admin::TagsController. - def namespace(name, options = {}, &block) - if options[:namespace] - with_options({:path_prefix => "#{options.delete(:path_prefix)}/#{name}", :name_prefix => "#{options.delete(:name_prefix)}#{name}_", :namespace => "#{options.delete(:namespace)}#{name}/" }.merge(options), &block) - else - with_options({:path_prefix => name, :name_prefix => "#{name}_", :namespace => "#{name}/" }.merge(options), &block) + with_scope_level(:collection) do + yield + end end - end - - def method_missing(route_name, *args, &proc) #:nodoc: - super unless args.length >= 1 && proc.nil? - named_route(route_name, *args) - end - - 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 member + unless @scope[:scope_level] == :resources + raise ArgumentError, "can't use member outside resources scope" + end - def controller - @controller ||= "#{options[:namespace]}#{(options[:controller] || plural).to_s}" + with_scope_level(:member) do + scope(":id") do + yield + end + end end - def requirements(with_id = false) - @requirements ||= @options[:requirements] || {} - @id_requirement ||= { :id => @requirements.delete(:id) || /[^#{Routing::SEPARATORS.join}]+/ } + def match(*args) + options = args.last.is_a?(Hash) ? args.pop : {} + args.push(options) - with_id ? @requirements.merge(@id_requirement) : @requirements - end + case options.delete(:on) + when :collection + return collection { match(*args) } + when :member + return member { match(*args) } + end - def conditions - @conditions ||= @options[:conditions] || {} - end + if @scope[:scope_level] == :resources + raise ArgumentError, "can't define route directly in resources scope" + end - def path - @path ||= "#{path_prefix}/#{path_segment}" + super 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 + private + def with_scope_level(kind) + old, @scope[:scope_level] = @scope[:scope_level], kind + yield + ensure + @scope[:scope_level] = old + end + end - def shallow_path_prefix - @shallow_path_prefix ||= @options[:shallow] ? @options[:namespace].try(:sub, /\/$/, '') : path_prefix - end + module Scoping + def scope(*args) + options = args.last.is_a?(Hash) ? args.pop : {} - def member_path - @member_path ||= "#{shallow_path_prefix}/#{path_segment}/:id" - end + constraints = options.delete(:constraints) || {} + unless constraints.is_a?(Hash) + block, constraints = constraints, {} + end + constraints, @scope[:constraints] = @scope[:constraints], (@scope[:constraints] || {}).merge(constraints) + blocks, @scope[:blocks] = @scope[:blocks], (@scope[:blocks] || []) + [block] + + options, @scope[:options] = @scope[:options], (@scope[:options] || {}).merge(options) + + path_set = controller_set = false + + case args.first + when String + path_set = true + path = args.first + path, @scope[:path] = @scope[:path], "#{@scope[:path]}#{Rack::Mount::Utils.normalize_path(path)}" + when Symbol + controller_set = true + controller = args.first + controller, @scope[:controller] = @scope[:controller], controller + end - def nesting_path_prefix - @nesting_path_prefix ||= "#{shallow_path_prefix}/#{path_segment}/:#{singular}_id" - end + yield - def shallow_name_prefix - @shallow_name_prefix ||= @options[:shallow] ? @options[:namespace].try(:gsub, /\//, '_') : name_prefix + self + ensure + @scope[:path] = path if path_set + @scope[:controller] = controller if controller_set + @scope[:options] = options + @scope[:blocks] = blocks + @scope[:constraints] = constraints end - def nesting_name_prefix - "#{shallow_name_prefix}#{singular}_" + def controller(controller) + scope(controller.to_sym) { yield } end - def action_separator - @action_separator ||= ActionController::Base.resource_action_separator + def namespace(path) + scope(path.to_s) { yield } end - def uncountable? - @singular.to_s == @plural.to_s + def constraints(constraints = {}) + scope(:constraints => constraints) { yield } end + end - def has_action?(action) - !DEFAULT_ACTIONS.include?(action) || action_allowed?(action) + class Constraints + def initialize(app, constraints = []) + @app, @constraints = app, constraints 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 call(env) + req = Rack::Request.new(env) - def arrange_actions_by_methods(actions) - (actions || {}).inject({}) do |flipped_hash, (key, value)| - (flipped_hash[value] ||= []) << key - flipped_hash + @constraints.each { |constraint| + if constraint.respond_to?(:matches?) && !constraint.matches?(req) + return Rack::Mount::Const::EXPECTATION_FAILED_RESPONSE + elsif constraint.respond_to?(:call) && !constraint.call(req) + return Rack::Mount::Const::EXPECTATION_FAILED_RESPONSE end - end + } - def add_default_action(collection, method, action) - (collection[method] ||= []).unshift(action) - end + @app.call(env) + end end - class SingletonResource < Resource #:nodoc: - def initialize(entity, options) - @singular = @plural = entity - options[:controller] ||= @singular.to_s.pluralize - super - end + def initialize(set) + @set = set + @scope = {} - 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 + extend Scoping + extend Resources 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. map.resources :messages 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 @message 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 @message 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: - # * :collection - Add named routes for other actions that operate on the collection. - # Takes a hash of #{action} => #{method}, where method is :get/:post/:put/:delete, - # an array of any of the previous, or :any if the method does not matter. - # These routes map to a URL like /messages/rss, with a route of +rss_messages_url+. - # * :member - Same as :collection, but for actions that operate on a specific member. - # * :new - Same as :collection, but for actions that operate on the new \resource action. - # * :controller - Specify the controller name for the routes. - # * :singular - Specify the singular name used in the member routes. - # * :requirements - 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. - # * :conditions - Specify custom routing recognition conditions. \Resources sets the :method value for the method-specific routes. - # * :as - 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 - # - # * :has_one - Specify nested \resources, this is a shorthand for mapping singleton \resources beneath the current. - # * :has_many - Same has :has_one, 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 - # - # * :path_names - 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' } - # - # * :path_prefix - 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 :article_id. - # - # 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 article_id directly: - # - # articles_comments_url(@comment.article_id, @comment) - # - # * :name_prefix - 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 :name_prefix 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) - # - # * :shallow - 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 :shallow 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 :shallow in combination with the +has_one+ and +has_many+ shorthand notations like: - # - # map.resources :users, :has_many => { :posts => :comments }, :shallow => true - # - # * :only and :except - Specify which of the seven default actions should be routed to. - # - # :only and :except may be set to :all, :none, 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 map.resources 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 new_message_url will raise a RoutingError exception. The default route in - # config/routes.rb 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) } + def get(*args, &block) + map_method(:get, *args, &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 - # /account profile. For nested singleton \resources, the \resource is global to its parent - # \resource, such as a projects \resource that has_one :project_manager. - # The project_manager should be mapped as a singleton \resource under projects: - # - # 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 map.resource. The default controller name is still taken from the plural name. - # * To specify a custom plural name, use the :plural option. There is no :singular 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. map.resource :account 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) } + def post(*args, &block) + map_method(:post, *args, &block) end - private - def map_resource(entities, options = {}, &block) - resource = Resource.new(entities, options) + def put(*args, &block) + map_method(:put, *args, &block) + end - with_options :controller => resource.controller do |map| - map_associations(resource, options) + def delete(*args, &block) + map_method(:delete, *args, &block) + end - if block_given? - with_options(options.slice(*INHERITABLE_OPTIONS).merge(:path_prefix => resource.nesting_path_prefix, :name_prefix => resource.nesting_name_prefix), &block) - end + def match(*args) + options = args.last.is_a?(Hash) ? args.pop : {} - map_collection_actions(map, resource) - map_default_collection_actions(map, resource) - map_new_actions(map, resource) - map_member_actions(map, resource) - end + if args.length > 1 + args.each { |path| match(path, options) } + return self 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 + if args.first.is_a?(Symbol) + return match(args.first.to_s, options.merge(:to => args.first.to_sym)) end - def map_associations(resource, options) - map_has_many_associations(resource, options.delete(:has_many), options) if options[:has_many] + path = args.first - path_prefix = "#{options.delete(:path_prefix)}#{resource.nesting_path_prefix}" - name_prefix = "#{options.delete(:name_prefix)}#{resource.nesting_name_prefix}" + options = (@scope[:options] || {}).merge(options) + conditions, defaults = {}, {} - 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 + path = nil if path == "" + path = Rack::Mount::Utils.normalize_path(path) if path + path = "#{@scope[:path]}#{path}" if @scope[:path] - 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 + raise ArgumentError, "path is required" unless path - map_resource_routes(map, resource, action, "#{resource.path}#{resource.action_separator}#{action_path}", "#{action}_#{resource.name_prefix}#{resource.plural}", m) - end - end - end + constraints = options[:constraints] || {} + unless constraints.is_a?(Hash) + block, constraints = constraints, {} end + blocks = ((@scope[:blocks] || []) + [block]).compact + constraints = (@scope[:constraints] || {}).merge(constraints) + options.each { |k, v| constraints[k] = v if v.is_a?(Regexp) } - def map_default_collection_actions(map, resource) - index_route_name = "#{resource.name_prefix}#{resource.plural}" - - if resource.uncountable? - index_route_name << "_index" - end + conditions[:path_info] = Rack::Mount::Strexp.compile(path, constraints, %w( / . ? )) - map_resource_routes(map, resource, :index, resource.path, index_route_name) - map_resource_routes(map, resource, :create, resource.path, index_route_name) - end + segment_keys = Rack::Mount::RegexpWithNamedGroups.new(conditions[:path_info]).names + constraints.reject! { |k, v| segment_keys.include?(k.to_s) } + conditions.merge!(constraints) - def map_default_singleton_actions(map, resource) - map_resource_routes(map, resource, :create, resource.path, "#{resource.shallow_name_prefix}#{resource.singular}") + if via = options[:via] + via = Array(via).map { |m| m.to_s.upcase } + conditions[:request_method] = Regexp.union(*via) 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}" + defaults[:controller] = @scope[:controller].to_s if @scope[:controller] - 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 + if options[:to].respond_to?(:call) + app = options[:to] + defaults.delete(:controller) + defaults.delete(:action) + elsif options[:to].is_a?(String) + defaults[:controller], defaults[:action] = options[:to].split('#') + elsif options[:to].is_a?(Symbol) + defaults[:action] = options[:to].to_s end + app ||= Routing::RouteSet::Dispatcher.new(:defaults => defaults) - 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 + if app.is_a?(Routing::RouteSet::Dispatcher) + unless defaults.include?(:controller) || segment_keys.include?("controller") + raise ArgumentError, "missing :controller" + end + unless defaults.include?(:action) || segment_keys.include?("action") + raise ArgumentError, "missing :action" 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" + app = Constraints.new(app, blocks) if blocks.any? + @set.add_route(app, conditions, defaults, options[:as]) - 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 + self + end - def add_conditions_for(conditions, method) - returning({:conditions => conditions.dup}) do |options| - options[:conditions][:method] = method unless method == :any - end - end + def redirect(path, options = {}) + status = options[:status] || 301 + lambda { |env| + req = Rack::Request.new(env) + url = req.scheme + '://' + req.host + path + [status, {'Location' => url, 'Content-Type' => 'text/html'}, ['Moved Permanently']] + } + 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 + private + def map_method(method, *args, &block) + options = args.last.is_a?(Hash) ? args.pop : {} + options[:via] = method + args.push(options) + match(*args, &block) + self end end end diff --git a/actionpack/lib/action_dispatch/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb index a6e46b1c78..90d7c208a5 100644 --- a/actionpack/lib/action_dispatch/routing/route_set.rb +++ b/actionpack/lib/action_dispatch/routing/route_set.rb @@ -208,9 +208,9 @@ module ActionDispatch clear! end - def draw + def draw(&block) clear! - yield Mapper.new(self) + Mapper.new(self).instance_exec(DeprecatedMapper.new(self), &block) @set.add_route(NotFound) install_helpers @set.freeze -- cgit v1.2.3