Add a route for sales logs duplicates

app/controllers/duplicate_logs_controller.rb

@@ -1,9 +1,20 @@
 class DuplicateLogsController < ApplicationController
+  before_action :find_resource_by_named_id
+
   def show
-    @log = LettingsLog.find(params[:lettings_log_id])
-    @duplicate_logs = LettingsLog.duplicate_logs_for_organisation(current_user.organisation_id, @log)
+    @duplicate_logs = @log.class.duplicate_logs_for_organisation(current_user.organisation_id, @log)
     @all_duplicates = [@log, *@duplicate_logs]
     duplicate_check_question_ids = %w[startdate tenancycode postcode_full age1 sex1 ecstat1 tcharge]
     @duplicate_check_questions = duplicate_check_question_ids.map { |question_id| @log.form.get_question(question_id, @log) }.compact
   end
+
+private
+
+  def find_resource_by_named_id
+    @log = if params[:sales_log_id].present?
+             current_user.sales_logs.visible.find_by(id: params[:sales_log_id])
+           else
+             current_user.lettings_logs.visible.find_by(id: params[:lettings_log_id])
+           end
+  end
 end

app/controllers/form_controller.rb

@@ -154,7 +154,7 @@ private
   end
 
   def successful_redirect_path
-    if LettingsLog.duplicate_logs_for_organisation(current_user.organisation, @log).count.positive?
+    if @log.class.duplicate_logs_for_organisation(current_user.organisation, @log).count.positive?
       return send("#{@log.class.name.underscore}_duplicate_logs_path", @log)
     end
 

config/routes.rb

@@ -236,6 +236,7 @@ Rails.application.routes.draw do
 
   resources :sales_logs, path: "/sales-logs" do
     get "delete-confirmation", to: "sales_logs#delete_confirmation"
+    get "duplicate-logs", to: "duplicate_logs#show"
 
     collection do
       get "csv-download", to: "sales_logs#download_csv"

spec/requests/form_controller_spec.rb

@@ -549,6 +549,39 @@ RSpec.describe FormController, type: :request do
           end
         end
 
+        context "with valid sales answers" do
+          let(:sales_log) do
+            create(
+              :sales_log,
+              created_by: user,
+            )
+          end
+          let(:params) do
+            {
+              id: sales_log.id,
+              sales_log: {
+                page: "buyer-1-age",
+                age1: 20,
+              },
+            }
+          end
+
+          context "and duplicate logs" do
+            let(:duplicate_logs) { create_list(:sales_log, 2) }
+
+            before do
+              allow(SalesLog).to receive(:duplicate_logs_for_organisation).and_return(duplicate_logs)
+              post "/sales-logs/#{sales_log.id}/buyer-1-age", params:
+            end
+
+            it "redirects to the duplicate logs page" do
+              expect(response).to redirect_to("/sales-logs/#{sales_log.id}/duplicate-logs")
+              follow_redirect!
+              expect(page).to have_content("These logs are duplicates")
+            end
+          end
+        end
+
         context "when the question has a conditional question" do
           context "and the conditional question is not enabled" do
             context "but is applicable because it has an inferred check answers display value" do