From fd2635509f0ec2b3985e4ee2a4b20a56328422d3 Mon Sep 17 00:00:00 2001
From: Espartaco Palma <esparta@gmail.com>
Date: Thu, 23 Jan 2020 21:20:10 -0800
Subject: [PATCH] Introducing delegation for city and country name (Conference
 - Venue

Using ActiveSupport delegate macro.
---
 app/models/conference.rb       |  3 +++
 spec/models/conference_spec.rb | 42 ++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)

diff --git a/app/models/conference.rb b/app/models/conference.rb
index be3c36ad..8d0b786d 100644
--- a/app/models/conference.rb
+++ b/app/models/conference.rb
@@ -25,6 +25,9 @@ class Conference < ApplicationRecord
   has_one :email_settings, dependent: :destroy
   has_one :program, dependent: :destroy
   has_one :venue, dependent: :destroy
+  delegate :city, :country_name, to: :venue, allow_nil: true
+  delegate :name, :street, to: :venue, prefix: true, allow_nil: true
+
   has_many :physical_tickets, through: :ticket_purchases
   has_many :ticket_purchases, dependent: :destroy
   has_many :payments, dependent: :destroy
diff --git a/spec/models/conference_spec.rb b/spec/models/conference_spec.rb
index 64cc1aea..b04869c6 100755
--- a/spec/models/conference_spec.rb
+++ b/spec/models/conference_spec.rb
@@ -7,6 +7,48 @@ describe Conference do
 
   let(:subject) { create(:conference, start_date: Date.new(2014, 06, 30), end_date: Date.new(2014, 06, 30)) }
 
+  context 'Delegation' do
+    context 'Venue' do
+      context 'when venue has not been set' do
+        it do
+          expect(subject.city).to eq(nil)
+        end
+        it do
+          expect(subject.country_name).to eq(nil)
+        end
+        it do
+          expect(subject.venue_name).to eq(nil)
+        end
+        it do
+          expect(subject.venue_street).to eq(nil)
+        end
+      end
+
+      context 'when venue has been set' do
+        before(:each) do
+          subject.update(venue: venue)
+        end
+
+        let(:venue) do
+          FactoryBot.create(:venue)
+        end
+
+        it do
+          expect(subject.city).to eq(venue.city)
+        end
+        it do
+          expect(subject.country_name).to eq(venue.country_name)
+        end
+        it do
+          expect(subject.venue_name).to eq(venue.name)
+        end
+        it do
+          expect(subject.venue_street).to eq(venue.street)
+        end
+      end
+    end
+  end
+
   describe '#write_event_distribution_to_db' do
 
     it 'updates pending conferences' do