diff options
Diffstat (limited to 'actionpack/lib/action_dispatch/routing/mapper.rb')
| -rw-r--r-- | actionpack/lib/action_dispatch/routing/mapper.rb | 225 |
1 files changed, 121 insertions, 104 deletions
diff --git a/actionpack/lib/action_dispatch/routing/mapper.rb b/actionpack/lib/action_dispatch/routing/mapper.rb index 879ccc5791..f65a294eca 100644 --- a/actionpack/lib/action_dispatch/routing/mapper.rb +++ b/actionpack/lib/action_dispatch/routing/mapper.rb @@ -2,6 +2,7 @@ require 'erb' require 'active_support/core_ext/hash/except' require 'active_support/core_ext/object/blank' require 'active_support/inflector' +require 'action_dispatch/routing/redirection' module ActionDispatch module Routing @@ -246,7 +247,11 @@ module ActionDispatch # # root :to => 'pages#main' # - # You should put the root route at the end of <tt>config/routes.rb</tt>. + # For options, see the +match+ method's documentation, as +root+ uses it internally. + # + # You should put the root route at the top of <tt>config/routes.rb</tt>, + # because this means it will be matched first. As this is the most popular route + # of most Rails applications, this is beneficial. def root(options = {}) match '/', options.reverse_merge(:as => :root) end @@ -268,18 +273,18 @@ module ActionDispatch # Mount a Rack-based application to be used within the application. # - # mount SomeRackApp, :at => "some_route" + # mount SomeRackApp, :at => "some_route" # # Alternatively: # - # mount(SomeRackApp => "some_route") + # mount(SomeRackApp => "some_route") # # All mounted applications come with routing helpers to access them. # These are named after the class specified, so for the above example # the helper is either +some_rack_app_path+ or +some_rack_app_url+. # To customize this helper's name, use the +:as+ option: # - # mount(SomeRackApp => "some_route", :as => "exciting") + # mount(SomeRackApp => "some_route", :as => "exciting") # # This will generate the +exciting_path+ and +exciting_url+ helpers # which can be used to navigate to this mounted app. @@ -326,7 +331,7 @@ module ActionDispatch end def define_generate_prefix(app, name) - return unless app.respond_to?(:routes) + return unless app.respond_to?(:routes) && app.routes.respond_to?(:define_mounted_helper) _route = @set.named_routes.routes[name.to_sym] _routes = @set @@ -383,39 +388,6 @@ module ActionDispatch map_method(:delete, *args, &block) end - # Redirect any path to another path: - # - # match "/stories" => redirect("/posts") - def redirect(*args) - options = args.last.is_a?(Hash) ? args.pop : {} - - path = args.shift || Proc.new - path_proc = path.is_a?(Proc) ? path : proc { |params| (params.empty? || !path.match(/%\{\w*\}/)) ? path : (path % params) } - status = options[:status] || 301 - - lambda do |env| - req = Request.new(env) - - params = [req.symbolized_path_parameters] - params << req if path_proc.arity > 1 - - uri = URI.parse(path_proc.call(*params)) - uri.scheme ||= req.scheme - uri.host ||= req.host - uri.port ||= req.port unless req.standard_port? - - body = %(<html><body>You are being <a href="#{ERB::Util.h(uri.to_s)}">redirected</a>.</body></html>) - - headers = { - 'Location' => uri.to_s, - 'Content-Type' => 'text/html', - 'Content-Length' => body.length.to_s - } - - [ status, headers, [body] ] - end - end - private def map_method(method, *args, &block) options = args.extract_options! @@ -439,13 +411,13 @@ module ActionDispatch # This will create a number of routes for each of the posts and comments # controller. For Admin::PostsController, Rails will create: # - # GET /admin/photos - # GET /admin/photos/new - # POST /admin/photos - # GET /admin/photos/1 - # GET /admin/photos/1/edit - # PUT /admin/photos/1 - # DELETE /admin/photos/1 + # GET /admin/posts + # GET /admin/posts/new + # POST /admin/posts + # GET /admin/posts/1 + # GET /admin/posts/1/edit + # PUT /admin/posts/1 + # DELETE /admin/posts/1 # # If you want to route /posts (without the prefix /admin) to # Admin::PostsController, you could use @@ -473,21 +445,31 @@ module ActionDispatch # not use scope. In the last case, the following paths map to # PostsController: # - # GET /admin/photos - # GET /admin/photos/new - # POST /admin/photos - # GET /admin/photos/1 - # GET /admin/photos/1/edit - # PUT /admin/photos/1 - # DELETE /admin/photos/1 + # GET /admin/posts + # GET /admin/posts/new + # POST /admin/posts + # GET /admin/posts/1 + # GET /admin/posts/1/edit + # PUT /admin/posts/1 + # DELETE /admin/posts/1 module Scoping def initialize(*args) #:nodoc: @scope = {} super end - # Used to route <tt>/photos</tt> (without the prefix <tt>/admin</tt>) - # to Admin::PostsController: + # Used to scope a set of routes to particular constraints. + # + # Take the following route definition as an example: + # + # scope :path => ":account_id", :as => "account" do + # resources :projects + # end + # + # This generates helpers such as +account_projects_path+, just like +resources+ does. + # The difference here being that the routes generated are like /rails/projects/2, + # rather than /accounts/rails/projects/2. + # # === Supported options # [:module] # If you want to route /posts (without the prefix /admin) to @@ -588,38 +570,38 @@ module ActionDispatch # # This generates the following routes: # - # admin_posts GET /admin/posts(.:format) {:action=>"index", :controller=>"admin/posts"} - # admin_posts POST /admin/posts(.:format) {:action=>"create", :controller=>"admin/posts"} - # new_admin_post GET /admin/posts/new(.:format) {:action=>"new", :controller=>"admin/posts"} - # edit_admin_post GET /admin/posts/:id/edit(.:format) {:action=>"edit", :controller=>"admin/posts"} - # admin_post GET /admin/posts/:id(.:format) {:action=>"show", :controller=>"admin/posts"} - # admin_post PUT /admin/posts/:id(.:format) {:action=>"update", :controller=>"admin/posts"} - # admin_post DELETE /admin/posts/:id(.:format) {:action=>"destroy", :controller=>"admin/posts"} + # admin_posts GET /admin/posts(.:format) {:action=>"index", :controller=>"admin/posts"} + # admin_posts POST /admin/posts(.:format) {:action=>"create", :controller=>"admin/posts"} + # new_admin_post GET /admin/posts/new(.:format) {:action=>"new", :controller=>"admin/posts"} + # edit_admin_post GET /admin/posts/:id/edit(.:format) {:action=>"edit", :controller=>"admin/posts"} + # admin_post GET /admin/posts/:id(.:format) {:action=>"show", :controller=>"admin/posts"} + # admin_post PUT /admin/posts/:id(.:format) {:action=>"update", :controller=>"admin/posts"} + # admin_post DELETE /admin/posts/:id(.:format) {:action=>"destroy", :controller=>"admin/posts"} # === Supported options # - # The +:path+, +:as+, +:module+, +:shallow_path+ and +:shallow_prefix+ all default to the name of the namespace. + # The +:path+, +:as+, +:module+, +:shallow_path+ and +:shallow_prefix+ options all default to the name of the namespace. # # [:path] # The path prefix for the routes. # - # namespace :admin, :path => "sekret" do - # resources :posts - # end + # namespace :admin, :path => "sekret" do + # resources :posts + # end # # All routes for the above +resources+ will be accessible through +/sekret/posts+, rather than +/admin/posts+ # # [:module] # The namespace for the controllers. # - # namespace :admin, :module => "sekret" do - # resources :posts - # end + # namespace :admin, :module => "sekret" do + # resources :posts + # end # # The +PostsController+ here should go in the +Sekret+ namespace and so it should be defined like this: # - # class Sekret::PostsController < ApplicationController - # # code go here - # end + # class Sekret::PostsController < ApplicationController + # # code go here + # end # # [:as] # Changes the name used in routing helpers for this namespace. @@ -638,7 +620,7 @@ module ActionDispatch :shallow_path => path, :shallow_prefix => path }.merge!(options) scope(options) { yield } end - + # === Parameter Restriction # Allows you to constrain the nested routes based on a set of rules. # For instance, in order to change the routes to allow for a dot character in the +id+ parameter: @@ -649,7 +631,7 @@ module ActionDispatch # # Now routes such as +/posts/1+ will no longer be valid, but +/posts/1.1+ will be. # The +id+ parameter must match the constraint passed in for this example. - # + # # You may use this to also resrict other parameters: # # resources :posts do @@ -707,61 +689,61 @@ module ActionDispatch end private - def scope_options + def scope_options #:nodoc: @scope_options ||= private_methods.grep(/^merge_(.+)_scope$/) { $1.to_sym } end - def merge_path_scope(parent, child) + def merge_path_scope(parent, child) #:nodoc: Mapper.normalize_path("#{parent}/#{child}") end - def merge_shallow_path_scope(parent, child) + def merge_shallow_path_scope(parent, child) #:nodoc: Mapper.normalize_path("#{parent}/#{child}") end - def merge_as_scope(parent, child) + def merge_as_scope(parent, child) #:nodoc: parent ? "#{parent}_#{child}" : child end - def merge_shallow_prefix_scope(parent, child) + def merge_shallow_prefix_scope(parent, child) #:nodoc: parent ? "#{parent}_#{child}" : child end - def merge_module_scope(parent, child) + def merge_module_scope(parent, child) #:nodoc: parent ? "#{parent}/#{child}" : child end - def merge_controller_scope(parent, child) + def merge_controller_scope(parent, child) #:nodoc: child end - def merge_path_names_scope(parent, child) + def merge_path_names_scope(parent, child) #:nodoc: merge_options_scope(parent, child) end - def merge_constraints_scope(parent, child) + def merge_constraints_scope(parent, child) #:nodoc: merge_options_scope(parent, child) end - def merge_defaults_scope(parent, child) + def merge_defaults_scope(parent, child) #:nodoc: merge_options_scope(parent, child) end - def merge_blocks_scope(parent, child) + def merge_blocks_scope(parent, child) #:nodoc: merged = parent ? parent.dup : [] merged << child if child merged end - def merge_options_scope(parent, child) + def merge_options_scope(parent, child) #:nodoc: (parent || {}).except(*override_keys(child)).merge(child) end - def merge_shallow_scope(parent, child) + def merge_shallow_scope(parent, child) #:nodoc: child ? true : false end - def override_keys(child) + def override_keys(child) #:nodoc: child.key?(:only) || child.key?(:except) ? [:only, :except] : [] end end @@ -969,6 +951,22 @@ module ActionDispatch # GET /photos/:id/edit # PUT /photos/:id # DELETE /photos/:id + # + # Resources can also be nested infinitely by using this block syntax: + # + # resources :photos do + # resources :comments + # end + # + # This generates the following comments routes: + # + # GET /photos/:id/comments/new + # POST /photos/:id/comments + # GET /photos/:id/comments/:id + # GET /photos/:id/comments/:id/edit + # PUT /photos/:id/comments/:id + # DELETE /photos/:id/comments/:id + # # === Supported options # [:path_names] # Allows you to change the paths of the seven default actions. @@ -977,6 +975,21 @@ module ActionDispatch # resources :posts, :path_names => { :new => "brand_new" } # # The above example will now change /posts/new to /posts/brand_new + # + # [:module] + # Set the module where the controller can be found. Defaults to nothing. + # + # resources :posts, :module => "admin" + # + # All requests to the posts resources will now go to +Admin::PostsController+. + # + # [:path] + # + # Set a path prefix for this resource. + # + # resources :posts, :path => "admin" + # + # All actions for this resource will now be at +/admin/posts+. def resources(*resources, &block) options = resources.extract_options! @@ -1088,6 +1101,7 @@ module ActionDispatch end end + # See ActionDispatch::Routing::Mapper::Scoping#namespace def namespace(path, options = {}) if resource_scope? nested { super } @@ -1167,7 +1181,7 @@ module ActionDispatch @scope[:scope_level_resource] end - def apply_common_behavior_for(method, resources, options, &block) + def apply_common_behavior_for(method, resources, options, &block) #:nodoc: if resources.length > 1 resources.each { |r| send(method, r, options, &block) } return true @@ -1197,23 +1211,23 @@ module ActionDispatch false end - def action_options?(options) + def action_options?(options) #:nodoc: options[:only] || options[:except] end - def scope_action_options? + def scope_action_options? #:nodoc: @scope[:options].is_a?(Hash) && (@scope[:options][:only] || @scope[:options][:except]) end - def scope_action_options + def scope_action_options #:nodoc: @scope[:options].slice(:only, :except) end - def resource_scope? + def resource_scope? #:nodoc: [:resource, :resources].include?(@scope[:scope_level]) end - def resource_method_scope? + def resource_method_scope? #:nodoc: [:collection, :member, :new].include?(@scope[:scope_level]) end @@ -1239,7 +1253,7 @@ module ActionDispatch @scope[:scope_level_resource] = old_resource end - def resource_scope(resource) + def resource_scope(resource) #:nodoc: with_scope_level(resource.is_a?(SingletonResource) ? :resource : :resources, resource) do scope(parent_resource.resource_scope) do yield @@ -1247,30 +1261,30 @@ module ActionDispatch end end - def nested_options + def nested_options #:nodoc: {}.tap do |options| options[:as] = parent_resource.member_name options[:constraints] = { "#{parent_resource.singular}_id".to_sym => id_constraint } if id_constraint? end end - def id_constraint? + def id_constraint? #:nodoc: @scope[:constraints] && @scope[:constraints][:id].is_a?(Regexp) end - def id_constraint + def id_constraint #:nodoc: @scope[:constraints][:id] end - def canonical_action?(action, flag) + def canonical_action?(action, flag) #:nodoc: flag && resource_method_scope? && CANONICAL_ACTIONS.include?(action.to_s) end - def shallow_scoping? + def shallow_scoping? #:nodoc: shallow? && @scope[:scope_level] == :member end - def path_for_action(action, path) + def path_for_action(action, path) #:nodoc: prefix = shallow_scoping? ? "#{@scope[:shallow_path]}/#{parent_resource.path}/:id" : @scope[:path] @@ -1281,11 +1295,11 @@ module ActionDispatch end end - def action_path(name, path = nil) + def action_path(name, path = nil) #:nodoc: path || @scope[:path_names][name.to_sym] || name.to_s end - def prefix_name_for_action(as, action) + def prefix_name_for_action(as, action) #:nodoc: if as as.to_s elsif !canonical_action?(action, @scope[:scope_level]) @@ -1293,12 +1307,14 @@ module ActionDispatch end end - def name_for_action(as, action) + def name_for_action(as, action) #:nodoc: prefix = prefix_name_for_action(as, action) prefix = Mapper.normalize_name(prefix) if prefix name_prefix = @scope[:as] if parent_resource + return nil if as.nil? && action.nil? + collection_name = parent_resource.collection_name member_name = parent_resource.member_name end @@ -1323,7 +1339,7 @@ module ActionDispatch end end - module Shorthand + module Shorthand #:nodoc: def match(*args) if args.size == 1 && args.last.is_a?(Hash) options = args.pop @@ -1338,6 +1354,7 @@ module ActionDispatch include Base include HttpHelpers + include Redirection include Scoping include Resources include Shorthand |