deduplicate sales logs on import

app/services/imports/lettings_logs_import_service.rb

@@ -298,7 +298,7 @@ module Imports
           end
           record
         else
-          duplicate_logs = lettings_log.created_by.lettings_logs.duplicate_logs(lettings_log)
+          duplicate_logs = lettings_log.owning_organisation.owned_lettings_logs.duplicate_logs(lettings_log)
           if duplicate_logs.count.positive?
             @logger.info("Duplicate log with id #{duplicate_logs.map(&:id).join(', ')} found for log #{lettings_log.old_id}, skipping log")
           else

app/services/imports/sales_logs_import_service.rb

@@ -223,17 +223,23 @@ module Imports
     def save_sales_log(attributes, previous_status)
       sales_log = SalesLog.new(attributes)
       begin
-        sales_log.save!
-        sales_log
-      rescue ActiveRecord::RecordNotUnique
         legacy_id = attributes["old_id"]
         record = SalesLog.find_by(old_id: legacy_id)
-
+        if record.present?
           if allow_updates
             attributes["updated_at"] = Time.zone.now
             record.update!(attributes)
           end
           record
+        else
+          duplicate_logs = sales_log.owning_organisation.owned_sales_logs.duplicate_logs(sales_log)
+          if duplicate_logs.count.positive?
+            @logger.info("Duplicate log with id #{duplicate_logs.map(&:id).join(', ')} found for log #{sales_log.old_id}, skipping log")
+          else
+            sales_log.save!
+          end
+          sales_log
+        end
       rescue ActiveRecord::RecordInvalid => e
         rescue_validation_or_raise(sales_log, attributes, previous_status, e)
       end

spec/fixtures/imports/sales_logs/shared_ownership_sales_log2.xml

@@ -17,7 +17,7 @@
   <Group>
     <Qdp>Yes</Qdp>
     <CompletionDate>2023-01-17</CompletionDate>
-    <PurchaserCode>Shared ownership example</PurchaserCode>
+    <PurchaserCode>Shared ownership example 2</PurchaserCode>
     <Ownership>1 Yes - a shared ownership scheme</Ownership>
     <Q16SaleType>2 Shared Ownership</Q16SaleType>
     <Q30SaleType/>

spec/services/imports/sales_logs_import_service_spec.rb

@@ -81,6 +81,23 @@ RSpec.describe Imports::SalesLogsImportService do
       expect(updated_logs).to eq(0)
     end
 
+    it "does not import the log if a duplicate log exists on the system" do
+      expect(logger).not_to receive(:error)
+      expect(logger).not_to receive(:warn)
+      expect(logger).not_to receive(:info).with(/Updating sales log/)
+      expect(logger).to receive(:info).with(/Duplicate log with id \d+ found for log shared_ownership_sales_log, skipping log/)
+      expect(logger).to receive(:info).with(/Duplicate log with id \d+ found for log shared_ownership_sales_log2, skipping log/)
+      expect(logger).to receive(:info).with(/Duplicate log with id \d+ found for log outright_sale_sales_log, skipping log/)
+      expect(logger).to receive(:info).with(/Duplicate log with id \d+ found for log discounted_ownership_sales_log, skipping log/)
+
+      sales_log_service.create_logs(remote_folder)
+      expect(SalesLog.count).to eq(4)
+      SalesLog.update_all(old_id: nil)
+
+      sales_log_service.create_logs(remote_folder)
+      expect(SalesLog.count).to eq(4)
+    end
+
     context "with updates allowed" do
       subject(:sales_log_service) { described_class.new(storage_service, logger, allow_updates: true) }
 
@@ -142,6 +159,7 @@ RSpec.describe Imports::SalesLogsImportService do
         expect(logger).to receive(:error).with("Sales log 'fake_id' belongs to legacy user with owner-user-id: 'fake_id' which cannot be found. Assigning log to 'Unassigned' user.")
         sales_log_service.send(:create_log, sales_log_xml)
         sales_log_xml.at_xpath("//meta:document-id").content = "fake_id"
+        sales_log_xml.at_xpath("//xmlns:PurchaserCode").content = "fake_code"
         sales_log_service.send(:create_log, sales_log_xml)
 
         sales_log = SalesLog.where(old_id: sales_log_id).first
@@ -181,6 +199,7 @@ RSpec.describe Imports::SalesLogsImportService do
         expect(logger).to receive(:error).with("Sales log 'fake_id' does not have the owner id. Assigning log to 'Unassigned' user.")
         sales_log_service.send(:create_log, sales_log_xml)
         sales_log_xml.at_xpath("//meta:document-id").content = "fake_id"
+        sales_log_xml.at_xpath("//xmlns:PurchaserCode").content = "fake_code"
         sales_log_service.send(:create_log, sales_log_xml)
 
         sales_log = SalesLog.where(old_id: sales_log_id).first
@@ -210,6 +229,7 @@ RSpec.describe Imports::SalesLogsImportService do
         expect(logger).to receive(:error).with("Sales log 'fake_id' belongs to legacy user with owner-user-id: 'fake_id' which belongs to a different organisation. Assigning log to 'Unassigned' user.")
         sales_log_service.send(:create_log, sales_log_xml)
         sales_log_xml.at_xpath("//meta:document-id").content = "fake_id"
+        sales_log_xml.at_xpath("//xmlns:PurchaserCode").content = "fake_code"
         sales_log_service.send(:create_log, sales_log_xml)
 
         sales_log = SalesLog.where(old_id: sales_log_id).first