Geocode users on login after sign-in

I need an example for testing background jobs, and a way to populate the
new locations field on users. Create an Active Job background job for
this purpose, and perform geocoding after a user has successfully signed
in.

Author: ruralocity

app/jobs/geocode_user_job.rb

@@ -0,0 +1,7 @@
+class GeocodeUserJob < ApplicationJob
+  queue_as :default
+
+  def perform(user)
+    user.geocode
+  end
+end

app/models/user.rb

@@ -28,6 +28,10 @@ def local?
     ["localhost", "127.0.0.1", "0.0.0.0"].include? last_sign_in_ip
   end
 
+  def after_database_authentication
+    GeocodeUserJob.perform_later self
+  end
+
   private
 
   def ensure_authentication_token

test/jobs/geocode_user_job_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class GeocodeUserJobTest < ActiveJob::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end