mirror of
https://github.com/rails/rails.git
synced 2022-11-09 12:12:34 -05:00
257 lines
8 KiB
Ruby
257 lines
8 KiB
Ruby
# encoding: UTF-8
|
|
|
|
module ActionDispatch
|
|
# The routing module provides URL rewriting in native Ruby. It's a way to
|
|
# redirect incoming requests to controllers and actions. This replaces
|
|
# mod_rewrite rules. Best of all, Rails' \Routing works with any web server.
|
|
# Routes are defined in <tt>config/routes.rb</tt>.
|
|
#
|
|
# Think of creating routes as drawing a map for your requests. The map tells
|
|
# them where to go based on some predefined pattern:
|
|
#
|
|
# Rails.application.routes.draw do
|
|
# Pattern 1 tells some request to go to one place
|
|
# Pattern 2 tell them to go to another
|
|
# ...
|
|
# end
|
|
#
|
|
# The following symbols are special:
|
|
#
|
|
# :controller maps to your controller name
|
|
# :action maps to an action with your controllers
|
|
#
|
|
# Other names simply map to a parameter as in the case of <tt>:id</tt>.
|
|
#
|
|
# == Resources
|
|
#
|
|
# Resource routing allows you to quickly declare all of the common routes
|
|
# for a given resourceful controller. Instead of declaring separate routes
|
|
# for your +index+, +show+, +new+, +edit+, +create+, +update+ and +destroy+
|
|
# actions, a resourceful route declares them in a single line of code:
|
|
#
|
|
# resources :photos
|
|
#
|
|
# Sometimes, you have a resource that clients always look up without
|
|
# referencing an ID. A common example, /profile always shows the profile of
|
|
# the currently logged in user. In this case, you can use a singular resource
|
|
# to map /profile (rather than /profile/:id) to the show action.
|
|
#
|
|
# resource :profile
|
|
#
|
|
# It's common to have resources that are logically children of other
|
|
# resources:
|
|
#
|
|
# resources :magazines do
|
|
# resources :ads
|
|
# end
|
|
#
|
|
# You may wish to organize groups of controllers under a namespace. Most
|
|
# commonly, you might group a number of administrative controllers under
|
|
# an +admin+ namespace. You would place these controllers under the
|
|
# <tt>app/controllers/admin</tt> directory, and you can group them together
|
|
# in your router:
|
|
#
|
|
# namespace "admin" do
|
|
# resources :posts, :comments
|
|
# end
|
|
#
|
|
# Alternately, you can add prefixes to your path without using a separate
|
|
# directory by using +scope+. +scope+ takes additional options which
|
|
# apply to all enclosed routes.
|
|
#
|
|
# scope path: "/cpanel", as: 'admin' do
|
|
# resources :posts, :comments
|
|
# end
|
|
#
|
|
# For more, see <tt>Routing::Mapper::Resources#resources</tt>,
|
|
# <tt>Routing::Mapper::Scoping#namespace</tt>, and
|
|
# <tt>Routing::Mapper::Scoping#scope</tt>.
|
|
#
|
|
# == Non-resourceful routes
|
|
#
|
|
# For routes that don't fit the <tt>resources</tt> mold, you can use the HTTP helper
|
|
# methods <tt>get</tt>, <tt>post</tt>, <tt>patch</tt>, <tt>put</tt> and <tt>delete</tt>.
|
|
#
|
|
# get 'post/:id' => 'posts#show'
|
|
# post 'post/:id' => 'posts#create_comment'
|
|
#
|
|
# If your route needs to respond to more than one HTTP method (or all methods) then using the
|
|
# <tt>:via</tt> option on <tt>match</tt> is preferable.
|
|
#
|
|
# match 'post/:id' => 'posts#show', via: [:get, :post]
|
|
#
|
|
# Now, if you POST to <tt>/posts/:id</tt>, it will route to the <tt>create_comment</tt> action. A GET on the same
|
|
# URL will route to the <tt>show</tt> action.
|
|
#
|
|
# == Named routes
|
|
#
|
|
# Routes can be named by passing an <tt>:as</tt> option,
|
|
# allowing for easy reference within your source as +name_of_route_url+
|
|
# for the full URL and +name_of_route_path+ for the URI path.
|
|
#
|
|
# Example:
|
|
#
|
|
# # In routes.rb
|
|
# get '/login' => 'accounts#login', as: 'login'
|
|
#
|
|
# # With render, redirect_to, tests, etc.
|
|
# redirect_to login_url
|
|
#
|
|
# Arguments can be passed as well.
|
|
#
|
|
# redirect_to show_item_path(id: 25)
|
|
#
|
|
# Use <tt>root</tt> as a shorthand to name a route for the root path "/".
|
|
#
|
|
# # In routes.rb
|
|
# root to: 'blogs#index'
|
|
#
|
|
# # would recognize http://www.example.com/ as
|
|
# params = { controller: 'blogs', action: 'index' }
|
|
#
|
|
# # and provide these named routes
|
|
# root_url # => 'http://www.example.com/'
|
|
# root_path # => '/'
|
|
#
|
|
# Note: when using +controller+, the route is simply named after the
|
|
# method you call on the block parameter rather than map.
|
|
#
|
|
# # In routes.rb
|
|
# controller :blog do
|
|
# get 'blog/show' => :list
|
|
# get 'blog/delete' => :delete
|
|
# get 'blog/edit/:id' => :edit
|
|
# end
|
|
#
|
|
# # provides named routes for show, delete, and edit
|
|
# link_to @article.title, show_path(id: @article.id)
|
|
#
|
|
# == Pretty URLs
|
|
#
|
|
# Routes can generate pretty URLs. For example:
|
|
#
|
|
# get '/articles/:year/:month/:day' => 'articles#find_by_id', constraints: {
|
|
# year: /\d{4}/,
|
|
# month: /\d{1,2}/,
|
|
# day: /\d{1,2}/
|
|
# }
|
|
#
|
|
# Using the route above, the URL "http://localhost:3000/articles/2005/11/06"
|
|
# maps to
|
|
#
|
|
# params = {year: '2005', month: '11', day: '06'}
|
|
#
|
|
# == Regular Expressions and parameters
|
|
# You can specify a regular expression to define a format for a parameter.
|
|
#
|
|
# controller 'geocode' do
|
|
# get 'geocode/:postalcode' => :show, constraints: {
|
|
# postalcode: /\d{5}(-\d{4})?/
|
|
# }
|
|
#
|
|
# Constraints can include the 'ignorecase' and 'extended syntax' regular
|
|
# expression modifiers:
|
|
#
|
|
# controller 'geocode' do
|
|
# get 'geocode/:postalcode' => :show, constraints: {
|
|
# postalcode: /hx\d\d\s\d[a-z]{2}/i
|
|
# }
|
|
# end
|
|
#
|
|
# controller 'geocode' do
|
|
# get 'geocode/:postalcode' => :show, constraints: {
|
|
# postalcode: /# Postcode format
|
|
# \d{5} #Prefix
|
|
# (-\d{4})? #Suffix
|
|
# /x
|
|
# }
|
|
# end
|
|
#
|
|
# Using the multiline modifier will raise an +ArgumentError+.
|
|
# Encoding regular expression modifiers are silently ignored. The
|
|
# match will always use the default encoding or ASCII.
|
|
#
|
|
# == External redirects
|
|
#
|
|
# You can redirect any path to another path using the redirect helper in your router:
|
|
#
|
|
# get "/stories" => redirect("/posts")
|
|
#
|
|
# == Unicode character routes
|
|
#
|
|
# You can specify unicode character routes in your router:
|
|
#
|
|
# get "こんにちは" => "welcome#index"
|
|
#
|
|
# == Routing to Rack Applications
|
|
#
|
|
# Instead of a String, like <tt>posts#index</tt>, which corresponds to the
|
|
# index action in the PostsController, you can specify any Rack application
|
|
# as the endpoint for a matcher:
|
|
#
|
|
# get "/application.js" => Sprockets
|
|
#
|
|
# == Reloading routes
|
|
#
|
|
# You can reload routes if you feel you must:
|
|
#
|
|
# Rails.application.reload_routes!
|
|
#
|
|
# This will clear all named routes and reload routes.rb if the file has been modified from
|
|
# last load. To absolutely force reloading, use <tt>reload!</tt>.
|
|
#
|
|
# == Testing Routes
|
|
#
|
|
# The two main methods for testing your routes:
|
|
#
|
|
# === +assert_routing+
|
|
#
|
|
# def test_movie_route_properly_splits
|
|
# opts = {controller: "plugin", action: "checkout", id: "2"}
|
|
# assert_routing "plugin/checkout/2", opts
|
|
# end
|
|
#
|
|
# +assert_routing+ lets you test whether or not the route properly resolves into options.
|
|
#
|
|
# === +assert_recognizes+
|
|
#
|
|
# def test_route_has_options
|
|
# opts = {controller: "plugin", action: "show", id: "12"}
|
|
# assert_recognizes opts, "/plugins/show/12"
|
|
# end
|
|
#
|
|
# Note the subtle difference between the two: +assert_routing+ tests that
|
|
# a URL fits options while +assert_recognizes+ tests that a URL
|
|
# breaks into parameters properly.
|
|
#
|
|
# In tests you can simply pass the URL or named route to +get+ or +post+.
|
|
#
|
|
# def send_to_jail
|
|
# get '/jail'
|
|
# assert_response :success
|
|
# end
|
|
#
|
|
# def goes_to_login
|
|
# get login_url
|
|
# #...
|
|
# end
|
|
#
|
|
# == View a list of all your routes
|
|
#
|
|
# rake routes
|
|
#
|
|
# Target specific controllers by prefixing the command with <tt>CONTROLLER=x</tt>.
|
|
#
|
|
module Routing
|
|
extend ActiveSupport::Autoload
|
|
|
|
autoload :Mapper
|
|
autoload :RouteSet
|
|
autoload :RoutesProxy
|
|
autoload :UrlFor
|
|
autoload :PolymorphicRoutes
|
|
|
|
SEPARATORS = %w( / . ? ) #:nodoc:
|
|
HTTP_METHODS = [:get, :head, :post, :patch, :put, :delete, :options] #:nodoc:
|
|
end
|
|
end
|