Question

一直试图在rails中植入pundit gem，它没有显示在我的索引页面中并且不确定原因，我的错误信息显示

1) Error:
DeletingAPost Feature Test#test_0001_delete the post:
Capybara::ElementNotFound: Unable to find link or button "Destroy"
    /Users/cheatermoves/.rvm/gems/ruby-2.0.0-p247/gems/capybara-2.1.0/lib/capybara/node/finders.rb:41:in `block in find'
    /Users/cheatermoves/.rvm/gems/ruby-2.0.0-p247/gems/capybara-2.1.0/lib/capybara/node/base.rb:81:in `synchronize'
    /Users/cheatermoves/.rvm/gems/ruby-2.0.0-p247/gems/capybara-2.1.0/lib/capybara/node/finders.rb:30:in `find'
    /Users/cheatermoves/.rvm/gems/ruby-2.0.0-p247/gems/capybara-2.1.0/lib/capybara/node/actions.rb:13:in `click_link_or_button'
    /Users/cheatermoves/.rvm/gems/ruby-2.0.0-p247/gems/capybara-2.1.0/lib/capybara/session.rb:354:in `block (2 levels) in <class:Session>'
    /Users/cheatermoves/.rvm/gems/ruby-2.0.0-p247/gems/capybara-2.1.0/lib/capybara/dsl.rb:51:in `block (2 levels) in <module:DSL>'
    /Users/cheatermoves/newHW/Portfolio/test/features/post_delete_post_test.rb:7:in `block (2 levels) in <top (required)>'

这是我的索引html帖子页面的副本

<h1>Listing posts</h1>

<table>
  <tr>
    <th>Title</th>
    <th>Content</th>
    <th></th>
    <th></th>
    <th></th>
  </tr>

<% @posts.each do |post| %>
  <tr id="<%= dom_id(post) %>">
    <td><%= post.title %></td>
    <td><%= post.content %></td>
    <td><%= link_to 'Show', post %></td>
    <% if policy(post).update? %>
    <td><%= link_to 'Edit', edit_post_path(post) %></td>
    <% end %>
    <% if policy(post).destroy? %>
       <td><%= link_to 'Destroy', post, method: :delete, data: { confirm: 'Are you sure?' } %></td>
      <% end %>
    </tr>
  <% end %>
</table>

<%= link_to 'New Post', new_post_path %>

这是我的政策页面的副本

class ApplicationPolicy
  attr_reader :user, :record

  def initialize(user, record)
    raise Pundit::NotAuthorizedError, "must be logged in" unless user
    @user = user
    @record = record
  end

  def index?
    false
  end

  def show?
    scope.where(:id => record.id).exists?
  end

  def create?
    false
  end

  def new?
    create?
  end

  def update?
    false
  end

  def edit?
    update?
  end

  def destroy?
    false
  end

  def scope
    Pundit.policy_scope!(user, record.class)
  end
end

class PostPolicy < ApplicationPolicy
  class Scope < Struct.new(:user, :scope)
    def resolve
      scope
    end
  end
end

我用devise和我的帖子模型安装的用户模型

class User < ActiveRecord::Base
  attr_accessible :role, :published

  def author?
    role == 'author'
  end

  def editor?
    role == 'editor'
  end
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  # Setup accessible (or protected) attributes for your model
  attr_accessible :email, :password, :password_confirmation, :remember_me
  # attr_accessible :title, :body
  has_many :posts, foreign_key: "author_id"
end


class Post < ActiveRecord::Base
  attr_accessible :content, :title
  belongs_to :author, class_name: "User"

  def publish!
    published = true
    save!
  end
end

还有我的帖子控制器

很抱歉把这个问题告诉我，就像在干草堆里寻找一根针可以让任何人指出我正确的方向吗？

Answer 1

很抱歉回复旧帖子，但为此，你的毁灭？策略自动为false（您在post策略中没有destroy ?,因此，您回退到ApplicationPolicy），因此无论用户是谁，都不会创建删除按钮。

Answer 2

您签署了LimeChat，因此我无法回答您的实际情况，添加到视图中的逻辑表明，他们应该仅为应该有权访问这些操作的用户填充。所以你可以尝试让你的登录用户进行测试，一个编辑器夹具，因为现在理论上他们是唯一应该看到这些按钮填充的用户。

在轨道中实施pundit gem的问题

2 个答案: