routes.rb をもう一度考えてみた #shibuyarb

routes.rb を
もう一度考えてみた
@tkawa

2012.7.18 Shibuya.rb

@tkawa
川村徹

RESTとかRailsとか書いて
るブログ
http://d.hatena.ne.jp/tkawa/

Web認知行動療法
U2plus http://u2plus.jp/

routes.rb
書いてますか？
resources
使ってますか？

Hoge::Application.routes.draw do
resources :users
end

@kenn

Is it only me who think rails routes.rb is a
mess?

https://twitter.com/kenn/status/184076612504006656

@miyagawa

config/routes.rb goddamnit

https://twitter.com/miyagawa/statuses/221405166853828608

@jugyo

routes.rb 開くたびに憂鬱になる

https://twitter.com/jugyo/status/14690985107

routes.rb の
悪いところを考えてみた

I.
resources が
直感的でない

基本7アクション
index
show
new
edit
create
update
destroy

resources :users
$ rake routes
users GET /users(.:format) users#index
POST /users(.:format) users#create
new_user GET /users/new(.:format) users#new
edit_user GET /users/:id/edit(.:format) users#edit
user GET /users/:id(.:format) users#show
PUT /users/:id(.:format) users#update
DELETE /users/:id(.:format) users#destroy

resources :users
GET POST PUT DELETE

/users index create - -

/users/:id show - update destroy

GET /users/new → new
GET /users/:id/edit → edit

II.
Convention over
Conﬁguration じゃない

7アクションが「規約」なら
resources も書かなくてもいい
のでは？

Conventional Routes

https://github.com/tkawa/conventional_routes

http://d.hatena.ne.jp/tkawa/20120407/p1

Conventional Routes
app/controllers/admin/special/licenses_controller.rb
app/controllers/admin/users_controller.rb
app/controllers/users_controller.rb

namespace :admin do
   namespace :special do
     resources :licenses
   end
   resources :users
end
resources :users

Conventional Routes
• routes.rb に何も書かなくても、
コントローラが存在すれば、自動的に
resources とみなす

• ディレクトリは namespace
• もしコントローラの中まで見れば、
Sinatra的なこともできそう

Sinatra的なことを
もうやってる人がいた！
（しかも2年前）

routes.rb をもう一度考えてみた #shibuyarb

Routes are unnecessary conﬁguration.

The seven standard controller actions are legacy.

Become intimate with your URLs – don’t abstract
them away.

Decrease the distance between thought and
implementation.

Let the controller do its job.
http://peepcode.com/blog/2010/rethinking-rails-3-routes

His idea
# Class method and HTTP-style methods.
class ReportsController < ApplicationController
  before_filter :authenticate
  resource "/reports(/:id)"

  get(:collection) do
  end

  get(:member) do |id|
  end

  put(:member) do |id|
  end

end

Astaire

https://github.com/pehrlich/astaire

Astaire (like Sinatra)
# Class method and HTTP-style methods.
class ReportsController < ApplicationController
  before_filter :authenticate

  get "/reports" do
  end

  get "/reports/:id" do
  end

  put "/reports/:id" do
  end

end

2年も経ってるのに反応薄
いし、やっぱりいまいち？

Sinatra式の問題点
• Viewの命名規約が別途必要
{view}.html.erb どういう名前にする？

• resources のパターンを活かせない
GET POST PUT DELETE

/reports index create - -

/reports/:id show - update destroy

いろいろ考えたけど
• 今の routes.rb はそれなりにベター

• 基本7アクションを残すなら、
match (get, post, put, delete) はむしろ書かなく
てすむようにしたい

• とにかく resources (resource) にすることで、
routes.rb はシンプルになる。REST的にもOK

例

resources :messages, except: [ :new ] do
post :trash, :restore, on: :member
resources :image_attachments, only: :index
end

https://github.com/rails/routing_concerns

post :trash, :restore, on: :member
end

member do
put :trashed
delete :trashed
end
end

member do
put :trashed
delete :trashed
end
end

※ちょっと意味が変わる

resource :trashed, only: [:create, :destroy]
end

# “partial” option does not exist in fact
resources :messages, except: [ :new ], partial: [:trashed] do
end

Railsにおける
RESTfulなURL設計勉強会
Sendagaya.rb #12
7/23 (月) 19:00-

http://www.zusaar.com/event/324057

routes.rb をもう一度考えてみた #shibuyarb

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