在Rails 4中，我如何从控制台获得控制器方法的路径?

Question

我正在使用Rails 4.2的设计4.2。这是我的路线。命名空间

内的Rb文件

devise_scope :user do
post 'sessions' => 'sessions#create'
delete 'sessions' => 'sessions#destroy'
end

应该映射到这个控制器

class Auth::SessionsController < Devise::SessionsController
layout false
skip_before_action :verify_authenticity_token
end

从Rails控制台中，我想确认"创建"的路径是什么。此控制器的方法。我试过这个

my-app(dev)> url_for controller: :auth_sessions, only_path: true
NoMethodError: undefined method `url_for' for main:Object
from (irb):4
from /usr/share/rvm/gems/ruby-2.4.5@my-app/gems/railties-4.2.10/lib/rails/commands/console.rb:110:in `start'
from /usr/share/rvm/gems/ruby-2.4.5@my-app/gems/railties-4.2.10/lib/rails/commands/console.rb:9:in `start'
from /usr/share/rvm/gems/ruby-2.4.5@my-app/gems/railties-4.2.10/lib/rails/commands/commands_tasks.rb:68:in `console'
from /usr/share/rvm/gems/ruby-2.4.5@my-app/gems/railties-4.2.10/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /usr/share/rvm/gems/ruby-2.4.5@my-app/gems/railties-4.2.10/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
my-app(dev)>

但我得到上述错误。

Answer 1

可以通过app访问rails console中的路由，也可以直接访问Rails.application.routes:

app.url_for(controller: "auth/sessions", action: :new, only_path: true)
# => "/auth/users/sign_in"
Rails.application.routes.url_for(controller: "auth/sessions", action: :new, only_path: true)
# => "/auth/users/sign_in"