ruby-on-rails - Rails CanCanCan 无模型 Controller 的能力问题

Question

我有一个简单的 Controller 方法:WelcomeController#dashboard该页面旨在成为用户登录后的登录页面(在此测试中，用户的角色为“经理”)。

我从简单开始，所以这个 Controller 还没有太多内容controllers/welcome_controller.rb:

class WelcomeController < ApplicationController
  skip_authorize_resource only: :index
  authorize_resource class: false, only: [:dashboard]

  skip_before_action :authenticate_user!, only: [:index]
  layout 'external', only: [:index]

  def index; end

  def dashboard; end
end

所以，我已经安装了 CanCanCan 并在我的 models/ability.rb 文件中:

class Ability
  include CanCan::Ability

  def initialize(user)
    user ||= User.new # guest user (not logged in)
    if user.admin?
      can :manage, :all
      can :access, :rails_admin
    elsif user.manager?
      can :read, Lesson
      can :access, :dashboard
      can :modify, Company
    elsif user.user?
      can :read, Lesson
    else
      can :read, :root
    end
  end
end

但是，我的 Rspec 测试失败了，我无法弄清楚原因。 spec/controllers/welcome_controller_spec.rb 中的代码是:

require 'rails_helper'
require 'cancan/matchers'

RSpec.describe WelcomeController, type: :controller do
  describe 'GET #index' do
    it 'returns http success' do
      get :index
      expect(response).to have_http_status(:success)
    end
  end

  describe 'GET #dashboard' do
    it 'manager routes to dashboard after login' do
      company = Company.create!(name: 'ACME', domain: 'acme.com')
      user = User.create!(email: '<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="542031272014203127207a373b39" rel="noreferrer noopener nofollow">[email protected]</a>', password: 'password', password_confirmation: 'password', company_id: company.id, role: 1)
      sign_in user
      get :dashboard
      expect(response).to have_http_status(:success)
    end

    it 'user does not route to dashboard after login' do
      user = create(:user)
      sign_in user
      expect { get :dashboard }.to raise_error(CanCan::AccessDenied)
    end
  end
end

这会导致此错误:

Failures:

  1) WelcomeController GET #dashboard manager routes to dashboard after login
     Failure/Error: get :dashboard

     CanCan::AccessDenied:
       You are not authorized to access this page.
     # ./spec/controllers/welcome_controller_spec.rb:17:in `block (3 levels) in <top (required)>'

我发现有趣的是，只有“登录后管理器路由到仪表板”测试失败了，因为即使我使用相同的 :dashboard，用户的第三个测试也可以顺利通过。打电话。

如果您有任何帮助/建议，我将不胜感激。

谢谢!

Answer 1

据我了解，没有别名操作名称为 :access 的操作，引用 from this link (如果不正确，请纠正我)，但您可以使用alias_action创建自定义操作

你的能力.rb

class Ability
  include CanCan::Ability

  def initialize(user)
    # here you create alias_action
    alias_action :create, :read, :update, :destroy, to: :access
    user ||= User.new # guest user (not logged in)
    if user.admin?
      can :manage, :all
      can :access, :rails_admin
    elsif user.manager?
      can :read, Lesson
      can :access, :dashboard
      can :modify, Company
    elsif user.user?
      can :read, Lesson
    else
      can :read, :root
    end
  end
end