Paginate FederalSubjectsController#index

app/controllers/federal_subjects_controller.rb

@@ -1,12 +1,15 @@
 # frozen_string_literal: true
 
 class FederalSubjectsController < ApplicationController
+  include PaginalController
+
   before_action :set_federal_subject, except: :index
 
   # GET /federal_subjects
   def index
     authorize :federal_subject
     @federal_subjects = policy_scope(FederalSubject).order_by_display_name
+                                                    .page(active_page)
   end
 
   # GET /federal_subjects/:number

app/views/federal_subjects/index.html.erb

@@ -3,4 +3,5 @@
 
   <%= render partial: 'table',
              locals: { federal_subjects: @federal_subjects } %>
+  <%= pagination @federal_subjects %>
 </div>

config/locales/activerecord/en.yml

@@ -15,6 +15,7 @@ en:
         many: Contact networks
       federal_subject:
         one: State
+        few: States
         many: States
       org_unit:
         one: Organizational unit

config/locales/activerecord/ru.yml

@@ -15,6 +15,7 @@ ru:
         many: Сети контактов
       federal_subject:
         one: Регион
+        few: Регионы
         many: Регионы
       org_unit:
         one: Организационное подразделение

spec/requests/federal_subjects/index_spec.rb

@@ -3,14 +3,22 @@
 require 'rails_helper'
 
 RSpec.describe 'GET /federal_subjects' do
+  let(:current_account) { create :superuser_account }
+
+  let :federal_subjects_count do
+    [0, 1, rand(2..4), rand(5..10), rand(20..40)].sample
+  end
+
   before do
     sign_in current_account.user if current_account&.user
 
-    create_list :federal_subject, rand(1..3)
+    create_list :federal_subject, federal_subjects_count
 
     get '/federal_subjects'
   end
 
+  it_behaves_like 'paginal controller', :federal_subjects_count
+
   for_account_types nil, :usual, :superuser do
     specify do
       expect(response).to have_http_status :ok