feat: setup algolia

Gemfile

@@ -176,6 +176,9 @@ gem 'reverse_markdown'
 # Sentiment analysis
 gem 'informers'
 
+# Algolia
+gem "algoliasearch-rails"
+
 ### Gems required only in specific deployment environments ###
 ##############################################################
 

Gemfile.lock

@@ -121,6 +121,14 @@ GEM
       jbuilder (~> 2)
       rails (>= 4.2, < 7.1)
       selectize-rails (~> 0.6)
+    algolia (2.3.2)
+      faraday (>= 0.15, < 3)
+      faraday-net_http_persistent (>= 0.15, < 3)
+      multi_json (~> 1.0)
+      net-http-persistent
+    algoliasearch-rails (2.3.0)
+      algolia (< 3.0.0)
+      json (>= 1.5.1)
     annotate (3.2.0)
       activerecord (>= 3.2, < 8.0)
       rake (>= 10.4, < 14.0)
@@ -838,6 +846,7 @@ DEPENDENCIES
   administrate (>= 0.19.0)
   administrate-field-active_storage
   administrate-field-belongs_to_search
+  algoliasearch-rails
   annotate
   attr_extras
   audited (~> 5.4, >= 5.4.1)

app/models/article.rb

@@ -28,6 +28,7 @@
 #
 class Article < ApplicationRecord
   include PgSearch::Model
+  include AlgoliaSearch
 
   has_many :associated_articles,
            class_name: :Article,
@@ -82,7 +83,32 @@ class Article < ApplicationRecord
     }
   )
 
-  def self.search(params)
+  algoliasearch per_environment: true do
+    # the list of attributes sent to Algolia's API
+    attribute :created_at, :title, :content, :description
+
+    add_attribute :tenant_id
+
+    # searchableAttributes ['title', 'description', 'content']
+    searchableAttributes %w[title description content]
+
+    # integer version of the created_at datetime field, to use numerical filtering
+    attribute :created_at_i do
+      created_at.to_i
+    end
+  end
+
+  def tenant_id
+    "cw-tenant-#{account.id}-#{portal.id}"
+  end
+
+  def self.search_with_algolia(params)
+    results = raw_search(params[:query])
+    hit_ids = results['hits'].pluck('objectID')
+    Article.where(id: hit_ids)
+  end
+
+  def self.search_on_db(params)
     records = joins(
       :category
     ).search_by_category_slug(
@@ -93,6 +119,18 @@ class Article < ApplicationRecord
     records
   end
 
+  def self.search(params)
+    if algolia_enabled?
+      search_with_algolia(params)
+    else
+      search_on_db(params)
+    end
+  end
+
+  def self.algolia_enabled?
+    ENV['ALGOLIA_KEY'].present? && ENV['ALGOLIA_APP_ID'].present?
+  end
+
   def associate_root_article(associated_article_id)
     article = portal.articles.find(associated_article_id) if associated_article_id.present?
 

config/initializers/algoliasearch.rb

@@ -0,0 +1,4 @@
+AlgoliaSearch.configuration = {
+  application_id: ENV.fetch('ALGOLIA_APP_ID', nil),
+  api_key: ENV.fetch('ALGOLIA_KEY', nil)
+}