Elastic Search 不在 Rails 中显示数据

Posted 2023-03-16

【中文标题】Elastic Search 不在 Rails 中显示数据

【英文标题】：Elastic Search not displaying data in rails

【发布时间】：2017-12-29 19:41:56

【问题描述】：

我有一个文档模型，我正在使用弹性搜索

我的文档模型如下

    require 'elasticsearch/model'

    class Document < ApplicationRecord
    include Elasticsearch::Model
    include Elasticsearch::Model::Callbacks
    belongs_to :user

    def self.search(query)
    __elasticsearch__.search(
    
      query: 
      multi_match: 
      query: query,
      fields: ['name', 'service', 'description', 'tat', 'status']
    
   ,
   highlight: 
    pre_tags: ['<em>'],
    post_tags: ['</em>'],
    fields: 
      name: ,
      service: ,
      description: ,
      tat: ,
      status: 
    
   
   

  ) 
    end

  settings index:  number_of_shards: 1  do
  mappings dynamic: 'false' do
  indexes :name, analyzer: 'english', index_options: 'offsets'
  indexes :service, analyzer: 'english'
  indexes :description, analyzer: 'english'
  indexes :tat, analyzer: 'english'
  indexes :status, analyzer: 'english'
  end
  end


 end

 Document.import force: true
 Document.__elasticsearch__.create_index! force: true 

我的搜索Controller如下：

 def search
 if params[:q].nil?
  @documents = []
 else
  @documents = Document.search(params[:q])
 end
 end

我的搜索视图如下：

  <h1>Document Search</h1>

  <%= form_for search_path, method: :get do |f| %>
  <p>
  <%= f.label "Search for" %>
  <%= text_field_tag :q, params[:q] %>
  <%= submit_tag "Go", name: nil %>
  </p>
  <% end %>

  <ul>
  <% @documents.each do |document| %>
  <li>
  <h3>
    <%= link_to document.try(:highlight).try(:name) ? 
  document.highlight.name[0].html_safe : document.name,
    controller: "documents", action: "show", id: document._id %>
  </h3>
  <% if document.try(:highlight).try(:description) %>
    <% document.highlight.description.each do |snippet| %>
      <p><%= snippet.html_safe %>...</p>
    <% end %>
  <% end %>
  <% if document.try(:highlight).try(:service) %>
    <% document.highlight.service.each do |snippet| %>
      <p><%= snippet.html_safe %>...</p>
    <% end %>
  <% end %>
  <% if document.try(:highlight).try(:tat) %>
    <% document.highlight.tat.each do |snippet| %>
      <p><%= snippet.html_safe %>...</p>
    <% end %>
  <% end %>
  <% if document.try(:highlight).try(:status) %>
    <% document.highlight.status.each do |snippet| %>
      <p><%= snippet.html_safe %>...</p>
    <% end %>
  <% end %>


 </li>

  <% end %>
 </ul>

现在，当我在查询参数名称中以出租作为值运行查询时，即使存在带有姓名簿的记录，它也不会在我的搜索页面上显示数据。在为我的搜索控制器行运行调试器

  @documents = Document.search(params[:q])

这就是我得到的

 <Elasticsearch::Model::Response::Response:0x007fcdde617430 @klass=[PROXY] 
 Document(id: integer, name: string, service: string, stamp_required: boolean, 
 default_price: string, tat: string, automated: boolean, template_url: string, 
 status: string, description: string, priorty: string, user_id: integer, 
 created_at: datetime, updated_at: datetime), @search=#

<Elasticsearch::Model::Searching::SearchRequest:0x007fcdde6175e8 @klass=
[PROXY] Document(id: integer, name: string, service: string, stamp_required:    
boolean, default_price: string, tat: string, automated: boolean, template_url: 
string, status: string, description: string, priorty: string, user_id: 
integer, created_at: datetime, updated_at: datetime), @options=, 
@definition=:index=>"documents", :type=>"document", :body=>:query=>
:multi_match=>:query=>"Rental Agreement", :fields=>["name", "service", 
"description", "tat", "status"], :highlight=>:pre_tags=>["<em>"], 
:post_tags=>["</em>"], :fields=>:name=>, :service=>, :description=>, 
:tat=>, :status=>>>

我需要显示搜索结果。我做错了什么？

【问题讨论】：

这个输出是什么：@documents.results.to_a ?

@zauzaj 这是我得到的 estamp 作为查询：[#<:model::response::result:0x007fc5f39c0c50 _id="3" _index="documents" _score="14.0215435" _source="#<Elasticsearch::Model::HashWrapper" automatic="true" created_at="2017-07-24T07:12:30.111Z" default_price="100" description="此文档为estamp" id="3" name="Estamp" priority="High" service="Estamp" stamp_required="true" status="Available" tat="dgfhj" template_url="vn" updated_at="2017-07-24T07:12:30.111 Z" user_id="1"> _type="document" highlight=#

=#<:model::hashwrapper name='["<em'>Estamp"] service=["Estamp"]>>>, #<:model::response::result:0x007fc5f39b3de8 _id="5" _index="documents" _score="9.678259" _source="#<Elasticsearch::Model::HashWrapper自动=true" created_at="2017-07-24T07:14:36.978Z" default_price="125" description="Franking and Estamp Services" id="5" name="Franking and Estamp" priority="High" service="Estamp" stamp_required="true" status="true" tat="asa" template_url="acac" updated_at="2017-07-24T07:14:36.978Z" user_id="1">

_type="document" highlight=#<:model::hashwrapper name='["Franking' and>Estamp"] service=["Estamp em>"]>>>]

抱歉，您能否使用这些数据更新您的问题，使其更加清晰和结构化，因为很难阐明这种方式的外观

【参考方案1】：

Document.__elasticsearch__.create_index! force: true 实际上是强制创建索引并清除那里的所有记录。

还有其他一些创建索引的方法，例如：

index_klass.__elasticsearch__.client.indices.create(index: 'index_name')

您可以传递更多选项，例如映射/设置，但您的数据将始终保持不变！

问候