Add a combined logs view to the database using scenic gem

Gemfile

@@ -58,6 +58,7 @@ gem "sentry-ruby"
 gem "possessive"
 # Strip whitespace from active record attributes
 gem "auto_strip_attributes"
+gem "scenic"
 
 group :development, :test do
   # Check gems for known vulnerabilities

Gemfile.lock

@@ -371,6 +371,9 @@ GEM
     ruby-progressbar (1.11.0)
     ruby2_keywords (0.0.5)
     rubyzip (2.3.2)
+    scenic (1.6.0)
+      activerecord (>= 4.0.0)
+      railties (>= 4.0.0)
     selenium-webdriver (4.4.0)
       childprocess (>= 0.5, < 5.0)
       rexml (~> 3.2, >= 3.2.5)
@@ -467,6 +470,7 @@ DEPENDENCIES
   rubocop-govuk (= 4.3.0)
   rubocop-performance
   rubocop-rails
+  scenic
   selenium-webdriver
   sentry-rails
   sentry-ruby

app/controllers/lettings_logs_controller.rb

@@ -1,5 +1,4 @@
 class LettingsLogsController < LogsController
-
   before_action :find_resource, except: %i[create index edit]
 
   def index

app/controllers/logs_controller.rb

@@ -1,5 +1,4 @@
 class LogsController < ApplicationController
-
   include Pagy::Backend
   include Modules::LogsFilter
   include Modules::SearchFilter
@@ -11,7 +10,7 @@ class LogsController < ApplicationController
   def index
     set_session_filters
 
-    all_logs = current_user.lettings_logs + current_user.sales_logs 
+    all_logs = current_user.lettings_logs + current_user.sales_logs
     unpaginated_filtered_logs = filtered_logs(filtered_collection(all_logs, search_term))
 
     respond_to do |format|

app/models/log.rb

@@ -5,6 +5,8 @@ class Log < ApplicationRecord
   belongs_to :managing_organisation, class_name: "Organisation", optional: true
   belongs_to :created_by, class_name: "User", optional: true
 
+  scope :combined, -> { ActiveRecord::Base.connection.execute("SELECT * FROM logs") }
+
   def collection_start_year
     return @start_year if @start_year
     return unless startdate

db/migrate/20220908153924_create_logs_view.rb

@@ -0,0 +1,5 @@
+class CreateLogsView < ActiveRecord::Migration[7.0]
+  def change
+    create_view :logs
+  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[7.0].define(version: 2022_09_02_082245) do
+ActiveRecord::Schema[7.0].define(version: 2022_09_08_153924) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -412,4 +412,18 @@ ActiveRecord::Schema[7.0].define(version: 2022_09_02_082245) do
   add_foreign_key "schemes", "organisations", column: "managing_organisation_id"
   add_foreign_key "schemes", "organisations", column: "owning_organisation_id", on_delete: :cascade
   add_foreign_key "users", "organisations", on_delete: :cascade
+
+  create_view "logs", sql_definition: <<-SQL
+      SELECT lettings_logs.id,
+      lettings_logs.status,
+      lettings_logs.created_at,
+      'lettings'::text AS log_type
+     FROM lettings_logs
+  UNION
+   SELECT sales_logs.id,
+      sales_logs.status,
+      sales_logs.created_at,
+      'sales'::text AS log_type
+     FROM sales_logs;
+  SQL
 end

db/views/logs_v01.sql

@@ -0,0 +1,15 @@
+SELECT
+  id,
+  status,
+  created_at,
+  'lettings' as log_type
+FROM lettings_logs
+
+UNION
+
+SELECT
+  id,
+  status,
+  created_at,
+  'sales' as log_type
+FROM sales_logs

spec/requests/logs_controller_spec.rb

@@ -1,20 +1,19 @@
 require "rails_helper"
 
 RSpec.describe LettingsLogsController, type: :request do
+  describe "index" do
+    let(:user) { FactoryBot.create(:user) }
+    let(:page) { Capybara::Node::Simple.new(response.body) }
 
-    describe "index" do
-        let(:user) { FactoryBot.create(:user) }
-        let(:page) { Capybara::Node::Simple.new(response.body) }
-
-        before do
-            sign_in user
-            FactoryBot.create_list(:lettings_log, 3, :completed, owning_organisation: user.organisation, created_by: user)
-            FactoryBot.create_list(:sales_log, 3, owning_organisation: user.organisation, created_by: user)
-        end
+    before do
+      sign_in user
+      FactoryBot.create_list(:lettings_log, 3, :completed, owning_organisation: user.organisation, created_by: user)
+      FactoryBot.create_list(:sales_log, 3, owning_organisation: user.organisation, created_by: user)
+    end
 
-        it "shows both lettings and sales logs" do
-            get "/logs"
-            expect(page).to have_content("6 total logs")
-        end
+    it "shows both lettings and sales logs" do
+      get "/logs"
+      expect(page).to have_content("6 total logs")
     end
-end
+  end
+end