Question

我正在使用railstutorial.org上的Michael Hartl教程。我遇到了困难在第5章中，让路由工作。如果我从路线文件开始

routes.rb

Rails.application.routes.draw do
    root 'static_pages#home'
    get 'static_pages/help'  
    get 'static_pages/about'
    get 'static_pages/contact'

对于每一个都有像

这样的测试

static_pages_controller_test.rb

test "should get home" do
    get :home
    assert_response :success
    assert_select "title", "Ruby on Rails Tutorial Sample App"
end

这种语法有效并且所有测试都通过但后来他想使用* _path约定更改语法。

所以现在测试看起来像

class StaticPagesControllerTest < ActionController::TestCase
  test "should get home" do
  get root_path
  .
  .
  end

test "should get help" do
  get help_path
  .
  .
  end

我将路线更新为

root 'static_pages#home'
get  '/help',    to: 'static_pages#help'
get  '/about',   to: 'static_pages#about'
get  '/contact', to: 'static_pages#contact'

但现在所有的测试都失败了消息

ERROR["test_should_get_home", StaticPagesControllerTest, 2016-06-30     05:02:41 -0700]
test_should_get_home#StaticPagesControllerTest (1467288161.43s)
ActionController::UrlGenerationError:           ActionController::UrlGenerationError: 
No route matches {:action=>"/", :controller=>"static_pages"}

ERROR["test_should_get_help", StaticPagesControllerTest, 2016-06-30 05:02:41 -0700]
test_should_get_help#StaticPagesControllerTest (1467288161.43s)
ActionController::UrlGenerationError:          ActionController::UrlGenerationError: 
No route matches {:action=>"/help", :controller=>"static_pages"}

我的控制器看起来像这样

class StaticPagesController < ApplicationController
  def home
  end

  def help
  end
  .
  .
end

如果我运行rake路线，我会

 Prefix Verb URI Pattern        Controller#Action
   root GET  /                  static_pages#home
   help GET  /help(.:format)    static_pages#help
  about GET  /about(.:format)   static_pages#about
contact GET  /contact(.:format) static_pages#contact

我做错了什么？

Answer 1

您需要重写这些路线，以便根据您的测试为您创建动态路线助手。写得像，

get 'static_pages/help'    , as: :help  
get 'static_pages/about'   , as: :about
get 'static_pages/contact' , as: :contact

阅读3.6 Naming Routes。

根据您当前的路线，这些*_path会像static_pages_about，static_pages_help等。我不知道您是如何获得rake routes输出的不使用as选项。

Answer 2

是作者上周用5.0.0更新了rails教程。建议你更新它，这将使更进一步的旅程更愉快和没有错误，你将获得更多的新东西要学习5.0.0

更新 tests / controllers / static_pages_controller_test.rb

require 'test_helper'

class StaticPagesControllerTest < ActionDispatch::IntegrationTest

  test "should get home" do
    get root_path
    assert_response :success
    assert_select "title", "Ruby on Rails Tutorial Sample App"
  end

  test "should get help" do
    get help_path
    assert_response :success
    assert_select "title", "Help | Ruby on Rails Tutorial Sample App"
  end

  test "should get about" do
    get about_path
    assert_response :success
    assert_select "title", "About | Ruby on Rails Tutorial Sample App"
  end

  test "should get contact" do
    get contact_path
    assert_response :success
    assert_select "title", "Contact | Ruby on Rails Tutorial Sample App"
  end
end

我相信一旦你更新 tests / controllers / static_pages_controller_test.rb ，你会看到绿色测试$ rails test

Answer 3

我不太确定，但如果你这样做会发生什么：

root 'static_pages#home'
get  'help',    to: 'static_pages#help'
get  'about',   to: 'static_pages#about'
get  'contact', to: 'static_pages#contact'

rails路由语法错误

3 个答案: