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我很难理解 Tire 的语法、Elasticsearch 的语法以及它们是如何映射在一起的。

我已经通过轮胎成功地在 Rails 应用程序中索引了 PDF。但是我需要将完整的报告分解为单独的页面,以便查询可以更加细化。将 PDF 拆分为单独的页面并将它们添加到belongs_to完整报告模型的页面模型很容易。我正在努力的是如何设置映射以及在哪里?!?我想利用 Elasticsearch 的Parent Field映射来实现这个最终目标。

希望有人可以让我直截了当。

报告模型(如果我将整个 PDF 索引为 ,这对我有用:attachment):

class Report < ActiveRecord::Base
  include Tire::Model::Search
  include Tire::Model::Callbacks

  has_many :pages, :dependent => :destroy
  attr_accessible :filename, :title

  tire.mapping do
    indexes :id, :type =>'integer'
    indexes :title
    indexes :attachment, :type => 'attachment',
                            :fields => {
                            :content_type => { :store => 'yes' },
                            :author     => { :store => 'yes' },
                            :title      => { :store => 'yes' },
                            :attachment => { :term_vector => 'with_positions_offsets', :store => 'yes' },
                            :date       => { :store => 'yes' }
                          }
  end

  ...
end

页面模型:

class Page < ActiveRecord::Base
  include Tire::Model::Search
  include Tire::Model::Callbacks

  belongs_to :report
  attr_accessible :filename, :page_num,

  tire.mapping do
    indexes :id, :type => 'integer'
    indexes :page_num, :type => 'integer'
    indexes :report_id, :type => 'integer' ###<== how is this associated with _parent?
    indexes :attachment, :type => 'attachment',
                            :fields => {
                            ...
    ...
  end
end
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