ruby-on-rails - Elasticsearch Rails gem

Question

我想问一下，如果有 gem ，您会推荐我使用它，以将我的Rails应用程序与诸如Searchkick或Chewy之类的elasticsearch连接起来。如果有一些有关如何使用它的简单教程，那将非常好。谢谢。

Answer 1

这取决于您使用的是哪种Rails / elasticsearch组合:

elasticsearch版本> = 1

elasticsearch-rails

elasticsearch版本<= 1

Tire

轮胎有很多示例，elasticsearch导轨并不多，因此这里是一个快速入门:

# Gemfile
gem 'elasticsearch-model'
gem 'elasticsearch-rails'

bundle install

# lib/tasks/elasticsearch.rake
require 'elasticsearch/rails/tasks/import'

将您现有的模型数据从db加载到elasticsearch中:
bundle exec rake environment elasticsearch:import:model CLASS='YourModel'

# app/models/your_model.rb
class YourModel < ActiveRecord::Base
  include Elasticsearch::Model
  include Elasticsearch::Model::Callbacks
end

代码中的其他位置(例如方法中的 Controller 或范围或您喜欢的任何位置)

# search with field filter
@your_models = YourModel.search(query: { match:  { your_field: "whatever" } }).records

# faceted search
@your_models = YourModel.search(query: { match:  { your_field: "whatever" } }, facets: { your_facet_name: { terms: { field: "your_facet_field", all_terms: true, order: "term" } } }).records
# to access to the faceted part of the elasticsearch response:
facet_results = @your_models..response.response['facets']['your_facet_name']['terms']