Use Elasticsearch

Gemfile

@@ -115,6 +115,12 @@ gem 'kaminari', '~> 1.1'
 # This gem is part of the AWS SDK for Ruby.
 gem 'aws-sdk-s3', require: false
 
+# ActiveModel/Record integrations for Elasticsearch.
+gem 'elasticsearch-model', '~> 7.0'
+
+# Ruby on Rails integrations for Elasticsearch.
+gem 'elasticsearch-rails', '~> 7.0'
+
 group :development, :test do
   # factory_bot provides a framework and DSL for defining and using factories.
   gem 'factory_bot_rails', '~> 4.10'

Gemfile.lock

@@ -168,6 +168,19 @@ GEM
     docile (1.3.2)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
+    elasticsearch (7.4.0)
+      elasticsearch-api (= 7.4.0)
+      elasticsearch-transport (= 7.4.0)
+    elasticsearch-api (7.4.0)
+      multi_json
+    elasticsearch-model (7.0.0)
+      activesupport (> 3)
+      elasticsearch (> 1)
+      hashie
+    elasticsearch-rails (7.0.0)
+    elasticsearch-transport (7.4.0)
+      faraday
+      multi_json
     erubi (1.9.0)
     execjs (2.7.0)
     factory_bot (4.11.1)
@@ -476,6 +489,8 @@ DEPENDENCIES
   database_cleaner (~> 1.7)
   devise (~> 4.7)
   devise-i18n (~> 1.8)
+  elasticsearch-model (~> 7.0)
+  elasticsearch-rails (~> 7.0)
   factory_bot_rails (~> 4.10)
   faker (~> 1.8)
   font-awesome-sass (~> 5.5.0)

app/models/concerns/searchable.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+module Searchable
+  extend ActiveSupport::Concern
+
+  included do
+    include Elasticsearch::Model
+    include Elasticsearch::Model::Callbacks
+  end
+end

app/models/person.rb

@@ -2,9 +2,19 @@
 
 class Person < ApplicationRecord
   include Nameable
+  include Searchable
 
   ACCOUNT_CONNECTION_TOKEN_RE = /\A\w+\z/.freeze
 
+  settings index: { number_of_shards: 1 } do
+    mapping dynamic: false do
+      indexes :first_name,     analyzer: 'russian'
+      indexes :middle_name,    analyzer: 'russian'
+      indexes :last_name,      analyzer: 'russian'
+      indexes :place_of_birth, analyzer: 'russian'
+    end
+  end
+
   ################
   # Associations #
   ################

config/application.rb

@@ -17,6 +17,8 @@ require 'sprockets/railtie'
 # you've limited to :test, :development, :staging, or :production.
 Bundler.require(*Rails.groups)
 
+require 'elasticsearch/rails/instrumentation'
+
 require 'csv'
 
 module Partynest

config/initializers/elasticsearch.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+# Be sure to restart your server when you modify this file.
+
+Elasticsearch::Model.client = Elasticsearch::Client.new(
+  scheme: :http,
+  host: '127.0.0.1',
+  port: 9200,
+  user: 'elastic',
+  password: 'changeme',
+
+  transport_options: {
+    request: { timeout: 5 },
+    ssl: { ca_file: nil },
+  },
+)

lib/tasks/elasticsearch.rake

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+require 'elasticsearch/rails/tasks/import'
+
+Rake::Task['elasticsearch:import:all'].prerequisites << :environment
+Rake::Task['elasticsearch:import:model'].prerequisites << :environment