Improving check-in process

mark user as present for the conference when user's registration ticket for that conference is scanned

spec/controllers/admin/ticket_scannings_controller_spec.rb

@@ -4,7 +4,9 @@ describe Admin::TicketScanningsController do
   let(:admin) { create(:admin) }
   let(:conference) { create(:conference) }
   let(:user) { create(:user) }
-  let(:paid_ticket_purchase) { create(:ticket_purchase, conference: conference, user: user) }
+  let!(:registration) { create(:registration, conference: conference, user: user) }
+  let(:registration_ticket) { create(:registration_ticket, conference: conference) }
+  let(:paid_ticket_purchase) { create(:ticket_purchase, conference: conference, user: user, ticket: registration_ticket, quantity: 1) }
   let(:physical_ticket) { create(:physical_ticket, ticket_purchase: paid_ticket_purchase) }
 
   context 'logged in as user with no role' do

spec/factories/ticket_scanning.rb

@@ -0,0 +1,5 @@
+FactoryGirl.define do
+  factory :ticket_scanning do
+    physical_ticket
+  end
+end

spec/models/ticket_scanning_spec.rb

@@ -0,0 +1,20 @@
+require 'spec_helper'
+
+describe TicketScanning do
+  let(:conference) { create(:conference) }
+  let(:user) { create(:user) }
+  let(:registration) { create(:registration, conference: conference, user: user) }
+  let(:registration_ticket) { create(:registration_ticket, conference: conference) }
+  let(:paid_ticket_purchase) { create(:ticket_purchase, conference: conference, user: user, ticket: registration_ticket, quantity: 1) }
+  let(:physical_ticket) { create(:physical_ticket, ticket_purchase: paid_ticket_purchase) }
+  let(:ticket_scanning) { create(:ticket_scanning, physical_ticket: physical_ticket) }
+
+  describe 'before_create' do
+    it 'marks user as present' do
+      expect(registration.attended).to eq(false)
+      ticket_scanning
+      registration.reload
+      expect(registration.attended).to eq(true)
+    end
+  end
+end