declarative_authorization的包含和继承的资源

Question

我有与declarative_authorization和inherited_resources宝石安装的rails3应用程序。让我向您展示我的应用程序中的一些代码：

class Blog < ActiveRecord::Base
  has_many :posts
  has_many :memberships, :class_name => "BlogMembership"

  has_many :subscribers, :through => :memberships, :source => :user, :conditions => "blog_memberships.membership_type = #{BlogMembership::SUBSCRIBER} or blog_memberships.membership_type = #{BlogMembership::AUTHOR} or blog_memberships.membership_type = #{BlogMembership::MODERATOR}"
  has_many :authors, :through => :memberships, :source => :user, :conditions => "blog_memberships.membership_type = #{BlogMembership::AUTHOR} or blog_memberships.membership_type = #{BlogMembership::MODERATOR}"
  has_many :moderators, :through => :memberships, :source => :user, :conditions => "blog_memberships.membership_type = #{BlogMembership::MODERATOR}"
end


class Post < ActiveRecord::Base
  belongs_to :blog, :counter_cache => true
  belongs_to :author, :class_name => "User", :foreign_key => "user_id"
end


class BlogMembership < ActiveRecord::Base
  belongs_to :user
  belongs_to :blog

  # Membership types:
  SUBSCRIBER = 0
  AUTHOR = 1
  MODERATOR = 2
end

我的授权规则：

authorization do
  role :guest do
    description "Not logged in users and users not assigned to any group"

    ##### Blogs and Posts
    has_permission_on :blogs, :to => [ :read, :list ]

    has_permission_on :posts, :to => [ :read, :feed ]
    has_permission_on :posts, :to => :flag if User.current
  end

  role :admin do
    description "Administrators"
    has_omnipotence # Can manage all
  end

  role :moderator do
    description "Blog moderators"

    includes [ :guest, :blogger ]

    has_permission_on :posts, :to => :manage do
      if_attribute :blog => { :moderators => contains { user } }
    end
  end

  role :blogger do
    description "Blog authors"

    includes :guest
    has_permission_on :posts, :to => :create do
      if_attribute :blog => { :authors => contains { user } }
    end
    has_permission_on :posts, :to => :manage do
      if_attribute :author => is { user }
    end
  end
end

privileges do
  # default privilege hierarchies to facilitate RESTful Rails apps
  privilege :manage, :includes => [:create, :read, :update, :delete]
  privilege :read, :includes => [:index, :show]
  privilege :create, :includes => :new
  privilege :update, :includes => :edit
  privilege :delete, :includes => :destroy
end

在post/index.html.haml中，我使用

- if permitted_to? :create, :posts
  .button.add-post
    = link_to "New post", new_resource_path

在我的posts_controller中

class PostsController < InheritedResources::Base
  respond_to :html

  belongs_to :blog
  filter_access_to :all
end

看起来不错，但不起作用:(

测试用户具有版主角色，拥有其中一个博客的版主成员资格，但在第二个博客中没有任何成员资格。

通过以下规则和代码，任何具有版主角色的用户都可以在任何博客中创建帖子。

你能告诉我-我需要改变什么，只允许博客作者和版主向他们的博客发送帖子，而不允许向其他博客发送帖子？

Answer 1

不是很优雅的方式，但我用下面的方法解决了它：

Posts_controller中的

1. 已更改访问筛选器：

filter_resource_access :nested_in =>：博客

• 将方法添加到帖子控制器

受保护

index.html.haml中的def new_post_for_collection @post = Blog.find(params:blog_id).posts.new end

• 更改

- if permitted\_to? :create, @post  .button.add-post  = link\_to "New post", new\_resource\_path 

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