install pg_search

Gemfile

@@ -98,6 +98,7 @@ gem "country_select"
 gem 'haml-rails'
 gem 'rails_autolink'
 
+gem 'pg_search'
 
 group :development do
   gem "capistrano", "~> 3.10", require: false

Gemfile.lock

@@ -230,6 +230,9 @@ GEM
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     pg (1.2.3)
+    pg_search (2.3.5)
+      activerecord (>= 5.2)
+      activesupport (>= 5.2)
     posix-spawn (0.3.13)
     postgresql (1.0.0)
       pg
@@ -388,6 +391,7 @@ DEPENDENCIES
   mimemagic (= 0.3.10)
   mysql2
   nokogiri
+  pg_search
   posix-spawn
   postgresql
   puma (~> 3.11)

db/migrate/20210928122901_create_pg_search_documents.rb

@@ -0,0 +1,17 @@
+class CreatePgSearchDocuments < ActiveRecord::Migration[6.0]
+  def up
+    say_with_time("Creating table for pg_search multisearch") do
+      create_table :pg_search_documents do |t|
+        t.text :content
+        t.belongs_to :searchable, polymorphic: true, index: true
+        t.timestamps null: false
+      end
+    end
+  end
+
+  def down
+    say_with_time("Dropping table for pg_search multisearch") do
+      drop_table :pg_search_documents
+    end
+  end
+end