Add column Session#logged_at

app/interactors/log_user_session.rb

@@ -6,6 +6,7 @@ class LogUserSession
   def call
     Session.create!(
       account: context.user.account,
+      logged_at: context.user.current_sign_in_at,
       ip_address: context.user.current_sign_in_ip,
     )
   end

app/models/session.rb

@@ -11,5 +11,7 @@ class Session < ApplicationRecord
   # Validations #
   ###############
 
+  validates :logged_at, presence: true
+
   validates :ip_address, presence: true
 end

db/migrate/20181129203927_initial_migration.rb

@@ -271,7 +271,8 @@ private
 
       t.references :account, null: false, index: true, foreign_key: true
 
-      t.string :ip_address, null: false
+      t.datetime :logged_at,  null: false
+      t.string   :ip_address, null: false
     end
 
     create_table :person_comments do |t|

db/structure.sql

@@ -737,6 +737,7 @@ CREATE TABLE public.sessions (
     created_at timestamp(6) without time zone NOT NULL,
     updated_at timestamp(6) without time zone NOT NULL,
     account_id bigint NOT NULL,
+    logged_at timestamp without time zone NOT NULL,
     ip_address character varying NOT NULL,
     CONSTRAINT ip_address CHECK (public.is_good_small_text((ip_address)::text))
 );

factories/sessions.rb

@@ -4,6 +4,8 @@ FactoryBot.define do
   factory :some_session, class: Session do
     association :account, factory: :usual_account
 
+    logged_at { Faker::Time.backward.utc }
+
     ip_address { Faker::Internet.ip_v4_address }
 
     trait :with_ipv6_address do

spec/models/session_spec.rb

@@ -11,6 +11,17 @@ RSpec.describe Session do
     it { is_expected.to validate_presence_of(:account).with_message(:required) }
   end
 
+  describe '#logged_at' do
+    def allow_value(*)
+      super.for :logged_at
+    end
+
+    it { is_expected.to validate_presence_of :logged_at }
+
+    it { is_expected.to allow_value Faker::Time.backward.utc }
+    it { is_expected.to allow_value Faker::Time.forward.utc }
+  end
+
   describe '#ip_address' do
     it { is_expected.to validate_presence_of :ip_address }
   end