Ruby on rails Rails:功能和ActiveAdmin未按预期工作

我正在使用ActiveAdmin和Cancancan开发一个RubyonRails项目。我为角色用户定义了一些功能，如

超级管理员

、

管理员

或

订阅者

在写了一些单元测试之后，我发现了一些能力不能正常工作，我无法找出哪里出了问题

具体来说，我有一个时事通讯模块，我只需要

administrator

或

super\u administrator

来管理它

这是我的能力摘录：

class Ability
  include CanCan::Ability

  def initialize(user)
    user ||= User.new # visitor user (not logged in)

    alias_action :create, :read, :update, :destroy, to: :crud

    if user.super_administrator?
      # super_administrator privileges
    elsif user.administrator?
      # administrator privileges
    elsif user.subscriber?
      cannot :manage, Newsletter
    else
      cannot :destroy, :all
      cannot :update, :all
      cannot :create, :all
      cannot :manage, Newsletter
    end
  end
end

# this test breaks for no reason
test 'should not destroy newsletter if logged in as subscriber' do
  sign_in @subscriber
  assert_no_difference 'Newsletter.count' do
    delete :destroy, id: @newsletter
  end
  assert_redirected_to admin_dashboard_path
end

private

def initialize_test
  @newsletter = newsletters(:one)
  @subscriber = users(:alice)
end

我的测试：

class Ability
  include CanCan::Ability

  def initialize(user)
    user ||= User.new # visitor user (not logged in)

    alias_action :create, :read, :update, :destroy, to: :crud

    if user.super_administrator?
      # super_administrator privileges
    elsif user.administrator?
      # administrator privileges
    elsif user.subscriber?
      cannot :manage, Newsletter
    else
      cannot :destroy, :all
      cannot :update, :all
      cannot :create, :all
      cannot :manage, Newsletter
    end
  end
end

# this test breaks for no reason
test 'should not destroy newsletter if logged in as subscriber' do
  sign_in @subscriber
  assert_no_difference 'Newsletter.count' do
    delete :destroy, id: @newsletter
  end
  assert_redirected_to admin_dashboard_path
end

private

def initialize_test
  @newsletter = newsletters(:one)
  @subscriber = users(:alice)
end

此测试中断，因为即使我编写了订阅者不管理新闻稿的功能，新闻稿也会被销毁

奇怪的是，如果我测试订阅者的能力，一切正常：

# this test pass as expected by ability
test 'should test abilities for subscriber' do
  sign_in @subscriber
  ability = Ability.new(@subscriber)
  assert ability.cannot?(:create, Newsletter.new), 'should not be able to create'
  assert ability.cannot?(:read, Newsletter.new), 'should not be able to read'
  assert ability.cannot?(:update, Newsletter.new), 'should not be able to update'
  assert ability.cannot?(:destroy, Newsletter.new), 'should not be able to destroy'
end 

我试图直接在浏览器中手动测试，但功能也不起作用

我不明白我错过了什么。有人知道我的代码出了什么问题吗

我的项目：

class Ability
  include CanCan::Ability

  def initialize(user)
    user ||= User.new # visitor user (not logged in)

    alias_action :create, :read, :update, :destroy, to: :crud

    if user.super_administrator?
      # super_administrator privileges
    elsif user.administrator?
      # administrator privileges
    elsif user.subscriber?
      cannot :manage, Newsletter
    else
      cannot :destroy, :all
      cannot :update, :all
      cannot :create, :all
      cannot :manage, Newsletter
    end
  end
end

# this test breaks for no reason
test 'should not destroy newsletter if logged in as subscriber' do
  sign_in @subscriber
  assert_no_difference 'Newsletter.count' do
    delete :destroy, id: @newsletter
  end
  assert_redirected_to admin_dashboard_path
end

private

def initialize_test
  @newsletter = newsletters(:one)
  @subscriber = users(:alice)
end

• Ruby 2.2.2
• 轨道4.2.3
• ActiveAdmin 1.0.0 pre1
• 坎坎坎1.12.0

---

经过数小时的调查，我发现问题来自与ActiveAdmin one同名的变量（具有正确的能力），并且正在覆盖它们（具有不好的能力）。

---

在我的ApplicationController中更改变量名称修复了所有与能力有关的错误。

你能发布完整的代码还是从构造函数中的能力类分支出来？我更新了我的第一个问题，添加了访问者的能力。我精确地调试了一些功能，将一些

记录器。debug

消息放在订户部分，它们出现在终端中，这意味着用户和角色已正确设置，但未应用。