Record last login timestamp on users during when logging in

app/controllers/sessions_controller.rb

@@ -48,7 +48,8 @@ def create
       flash[:notice] = nil
       session[:user_id] = identity.user.id
     end
-
+
+    identity.user.update_columns(last_login_at: Time.current)
     identity.user.update_repo_permissions_async
     login_destination = pre_login_destination
 

db/migrate/20180207110908_add_last_login_at_to_users.rb

@@ -0,0 +1,5 @@
+class AddLastLoginAtToUsers < ActiveRecord::Migration[5.0]
+  def change
+    add_column :users, :last_login_at, :datetime
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20171109154509) do
+ActiveRecord::Schema.define(version: 20180207110908) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -292,6 +292,7 @@
     t.datetime "last_synced_at"
     t.boolean  "emails_enabled",    :default=>true
     t.boolean  "optin",             :default=>false
+    t.datetime "last_login_at"
   end
 
   create_table "versions", force: :cascade do |t|