使用Sunspot查询具有不同属性的多个模型

我正在使用Sunspot来索引和搜索Rails项目中的几个模型，我需要根据模型的HABTM与Department模型的关联来限制结果。 这是因为用户可能没有权限查看所有部门的记录，因此不应返回这些部门的结果。

以下是两个模型的重要部分：

 class Message < ActiveRecord::Base has_many :comments, dependent: :destroy has_and_belongs_to_many :departments searchable do text :title, :body text :comments do comments.map(&:body) end date :created_at integer :department_ids, using: :department_ids, references: Department, multiple: true end end class Document < ActiveRecord::Base has_and_belongs_to_many :departments searchable do text :name date :created_at integer :department_ids, using: :department_ids, references: Department, multiple: true end end 

这是搜索控制器代码：

 class SearchController < ApplicationController def index # These arrays are created here for the sake of this example document_permitted_departments = [1, 2, 3] message_permitted_departments = [3, 4] search = Sunspot.search Document, Message do # This obviously doesn't work with(:department_ids, document_permitted_departments) with(:department_ids, message_permitted_departments) fulltext params[:q] paginate page: params[:page], per_page: SEARCH_RESULTS_PER_PAGE order_by :created_at, :desc end @results = search.results @number_of_results = search.total respond_to do |format| format.js format.html end end end 

问题是用户可能能够读取部门A和部门B中的文档，但他们应该只能看到部门B中的消息。

有没有办法将with范围应用于多模型搜索中的特定模型？ 还是有另外一种方法可以解决这个问题吗？

Answer 1

经过更多的谷歌搜索和一些反复试验，我终于弄明白了。 这是我最终得到的代码的大量注释版本：

 class SearchController < ApplicationController before_filter :authenticate_user! def index # These arrays are created here for the sake of this example # Push 0 on to the end because empty arrays break the `with :department_ids` scopes below document_permitted_departments = [1, 2, 3].push(0) message_permitted_departments = [3, 4].push(0) search = Sunspot.search Document, Message do any_of do # Return anything that matches any of the scopes in this block all_of do # Return only those results that match these scopes with :class, Document # This limits scopes in this block to Document results with :department_ids, document_permitted_departments end all_of do # Return only those results that match these scopes with :class, Message # This limits scopes in this block to Message results with :department_ids, message_permitted_departments end end fulltext params[:q] paginate page: params[:page], per_page: SEARCH_RESULTS_PER_PAGE order_by :created_at, :desc end @results = search.results @number_of_results = search.total respond_to do |format| format.js # index.js.erb format.html # index.html.erb end end end 

Answer 2

添加到Simon回答，

我找到了另一个场景。 您希望在一个模型中应用条件并仅使用全文匹配其他模型。

我的第一次尝试就是这个

  def search_all(options) Sunspot.search(Post, Tag) do any_of do all_of do with :class, Post with(:status, :published) end end fulltext options[:search] group(:class) { limit 30 } end end 

这只给了我Post但不是Tag，不知何故状态::发布应用于Tag并且Tag没有结果。 我也尝试了其他一些变化。

最后我想出了一个解决方案。

 Sunspot.search(Post, Tag) do any_of do all_of do with :class, Post with(:status, :published) end # This might look weiered to put all_of without any filter, However # without the next all_of block, status: :published is applied in tags and no results appear for tags. # Meaning any_of is ignored if there is one nested block and Post all_of is applied for entire filter. all_of do with :class, Tag end end fulltext options[:search] group(:class) { limit 30 } end 

该解决方案有效。 可能是这可能有其他解决方案。 我仍然对此很满意。