Ruby on rails ActionController:：UrlGenerationError，没有路由匹配

我已经通读了我能找到的每一个类似的问题，但仍然无法解决我的问题

# routes.rb
Rails.application.routes.draw do
  resources :lists, only: [:index, :show, :create, :update, :destroy] do
    resources :items, except: [:new]
  end
end

---

以及RSpec错误：

1) ItemsController POST #create with valid params creates a new item
     Failure/Error: post :create, { item: valid_item_attributes, format: :json  }
     ActionController::UrlGenerationError:
       No route matches {:action=>"create", :controller=>"items", :format=>:json, :item=>{:title=>"Some Item Title", :complete=>false, :list_id=>1}}

rake路由的输出

：

list_items     GET    /lists/:list_id/items(.:format)          items#index
               POST   /lists/:list_id/items(.:format)          items#create
edit_list_item GET    /lists/:list_id/items/:id/edit(.:format) items#edit
     list_item GET    /lists/:list_id/items/:id(.:format)      items#show
               PATCH  /lists/:list_id/items/:id(.:format)      items#update
               PUT    /lists/:list_id/items/:id(.:format)      items#update
               DELETE /lists/:list_id/items/:id(.:format)      items#destroy

我可以通过

curl

在现有列表中成功地创建一个新项，这告诉我路由是正确的，我一定是在测试中做错了什么

curl -i -X POST -H "Content-Type:application/json" -H "X-User-Email:admin@example.com" -H "X-Auth-xxx" -d '{ "item": { "title": "new item", "complete": "false"} }' http://localhost:3000/lists/5/items

我真的很困惑。我的路线设置正确。肯定存在

ItemsController#create

方法。

items\u controller\u spec.rb

中的其余测试无问题通过

---

我是否遗漏了一些明显的东西？

以下是我必须对测试进行的修复（

items\u controller\u spec.rb

）。我没有将正确的哈希传递到

后期创建：

  describe "POST #create" do
    context "with valid params" do
      it "creates a new item" do
        expect {
          post :create, { list_id: list.id, item: valid_item_attributes, format: :json  }
        }.to change(Item, :count).by(1)
      end

      it "assigns a newly created item as @item" do
        post :create, { list_id: list.id, item: valid_item_attributes, format: :json  }

        expect(assigns(:item)).to be_a(Item)
        expect(assigns(:item)).to be_persisted
      end
    end # "with valid params"

    context "with invalid params" do
      it "assigns a newly created but unsaved item as @item" do
        post :create, { list_id: list.id, item: invalid_item_attributes, format: :json  }

        expect(assigns(:item)).to be_a_new(Item)
      end

      it "returns unprocessable_entity status" do
        put :create, { list_id: list.id, item: invalid_item_attributes, format: :json }

        expect(response.status).to eq(422)
      end
    end # "with invalid params"
  end # "POST #create"

---

我收到了相同的错误，并以不同的方式修复了它。我正在使用Rails

~>5.0.7

路线

这是运行rake routes CONTROLLER=bills的输出：

 Prefix            Verb   URI Pattern                                  Controller#Action
download_site_bill GET    /sites/:site_id/bills/:id/download(.:format) bills#download
        site_bills GET    /sites/:site_id/bills(.:format)              bills#index
                   POST   /sites/:site_id/bills(.:format)              bills#create
     new_site_bill GET    /sites/:site_id/bills/new(.:format)          bills#new
    edit_site_bill GET    /sites/:site_id/bills/:id/edit(.:format)     bills#edit
         site_bill GET    /sites/:site_id/bills/:id(.:format)          bills#show
                   PATCH  /sites/:site_id/bills/:id(.:format)          bills#update
                   PUT    /sites/:site_id/bills/:id(.:format)          bills#update
                   DELETE /sites/:site_id/bills/:id(.:format)          bills#destroy
             bills GET    /bills(/page/:page)(.:format)                bills#index
     download_bill GET    /bills/:id/download(.:format)                bills#download
                   GET    /bills(.:format)                             bills#index
                   POST   /bills(.:format)                             bills#create
          new_bill GET    /bills/new(.:format)                         bills#new
         edit_bill GET    /bills/:id/edit(.:format)                    bills#edit
              bill GET    /bills/:id(.:format)                         bills#show
                   PATCH  /bills/:id(.:format)                         bills#update
                   PUT    /bills/:id(.:format)                         bills#update
                   DELETE /bills/:id(.:format)                         bills#destroy

---

参考代码

# controllers/admin/bills_controller.rb (excerpt)

module Admin
 class BillsController < ApplicationController

    ...

    def edit
      authorize(@bill)
    end
  end
end

---

---

潜在解决方案

我尝试了不同的方法。它可能适用于其他人，但我得到了以下错误：

Failure/Error: require 'admin/bills_controller'

LoadError:
  cannot load such file -- admin/bills_controller

解决方案

我试过案例2，结果成功了。我对代码所做的更改是添加这个

参数：{use_route:'admins/bills/'，id:bill.id}

。以下是此添加的上下文：

context 'as an AdminUser' do
   login_admin_user

   it 'loads the bill edit page' do
     request.host = 'admin.example.com'
     get :edit, params: { use_route: 'admins/bills/', id: bill.id }
     expect(response.status).to eq(200)
   end
 end

---

rake routes

对您的项目路由有何说明？添加了

rake routes

（如上）的输出。您的

ItemsController

不应该被称为

Lists:：ItemsController

，并且位于

Lists

文件夹中吗？似乎您没有遵循Rails结构约定。是的，我也有同样的问题。控制器文件的物理位置与我的原始问题无关。

# spec/controllers/admin/bills_controller_spec.rb (excerpt)

require 'rails_helper'

RSpec.describe Admin::BillsController, type: :controller do
 ...

    context 'as an AdminUser' do
      login_admin_user

      it 'loads the bill edit page' do
        request.host = 'admin.example.com'
        get :edit, { id: bill }
        expect(response.status).to eq(200)
      end
    end
  end
end

# Error message

2) Admin::BillsController GET bills/:id/edit as a User redirects to the home page
     Failure/Error: get :edit

     ActionController::UrlGenerationError:
       No route matches {:action=>"edit", :controller=>"admin/bills"}

Failure/Error: require 'admin/bills_controller'

LoadError:
  cannot load such file -- admin/bills_controller

context 'as an AdminUser' do
   login_admin_user

   it 'loads the bill edit page' do
     request.host = 'admin.example.com'
     get :edit, params: { use_route: 'admins/bills/', id: bill.id }
     expect(response.status).to eq(200)
   end
 end