声明_授权包含和继承资源

Question

我有带有声明_ uthorization和Inherited_resources Gems安装的Rails3应用程序。让我向您展示来自我的应用程序的一些代码：

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posts / index.html.haml我使用

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

.

和我的posts_controller

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:(

测试用户将主持人的角色与主持人的成员资格有一个博客，但没有第二个博客中的任何会员资格。

具有以下规则和代码具有中文域的任何用户角色可以在任何博客中创建帖子。

你能告诉我吗 - 我需要改变的是，只允许博客作者和主持人向他们发送帖子，而不是其他博客？

Answer 1

Not so elegant way, but i solved it with following:

1. changed access filter in posts_controller:

   filter_resource_access :nested_in => :blog

2. Added method to posts controller

   protected

   def new_post_for_collection @post = Blog.find(params[:blog_id]).posts.new end

3. Changes in index.html.haml

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