Remove invalid exchange date

app/models/validations/sales/sale_information_validations.rb

@@ -30,7 +30,7 @@ module Validations::Sales::SaleInformationValidations
     end
 
     if record.saledate - record.exdate >= 1.year
-      record.errors.add :exdate, I18n.t("validations.sale_information.exdate.must_be_less_than_1_year_from_saledate")
+      record.errors.add :exdate, :over_a_year_from_saledate, message: I18n.t("validations.sale_information.exdate.must_be_less_than_1_year_from_saledate")
       record.errors.add :saledate, I18n.t("validations.sale_information.saledate.must_be_less_than_1_year_from_exdate")
     end
   end

app/services/imports/sales_logs_import_service.rb

@@ -198,6 +198,11 @@ module Imports
         attributes.delete("ppcodenk")
         attributes.delete("ppostcode_full")
         save_sales_log(attributes, previous_status)
+      elsif sales_log.errors.of_kind?(:exdate, :over_a_year_from_saledate)
+        @logger.warn("Log #{sales_log.old_id}: Removing exchange date as the exchange date is invalid")
+        @logs_overridden << sales_log.old_id
+        attributes.delete("exdate")
+        save_sales_log(attributes, previous_status)
       else
         @logger.error("Log #{sales_log.old_id}: Failed to import")
         sales_log.errors.each do |error|

spec/services/imports/sales_logs_import_service_spec.rb

@@ -420,6 +420,36 @@ RSpec.describe Imports::SalesLogsImportService do
       end
     end
 
+    context "and it has an invalid record with invalid contracts exchange date" do
+      let(:sales_log_id) { "shared_ownership_sales_log" }
+
+      before do
+        sales_log_xml.at_xpath("//xmlns:DAY").content = "1"
+        sales_log_xml.at_xpath("//xmlns:MONTH").content = "10"
+        sales_log_xml.at_xpath("//xmlns:YEAR").content = "2022"
+        sales_log_xml.at_xpath("//xmlns:EXDAY").content = "1"
+        sales_log_xml.at_xpath("//xmlns:EXMONTH").content = "4"
+        sales_log_xml.at_xpath("//xmlns:EXYEAR").content = "2020"
+      end
+
+      it "intercepts the relevant validation error" do
+        expect(logger).to receive(:warn).with(/Removing exchange date as the exchange date is invalid/)
+        expect { sales_log_service.send(:create_log, sales_log_xml) }
+          .not_to raise_error
+      end
+
+      it "clears out the invalid answers" do
+        allow(logger).to receive(:warn)
+
+        sales_log_service.send(:create_log, sales_log_xml)
+        sales_log = SalesLog.find_by(old_id: sales_log_id)
+
+        expect(sales_log).not_to be_nil
+        expect(sales_log.saledate).to eq(Time.zone.local(2022, 10, 1))
+        expect(sales_log.exdate).to be_nil
+      end
+    end
+
     context "when inferring default answers for completed sales logs" do
       context "when the armedforcesspouse is not answered" do
         let(:sales_log_id) { "discounted_ownership_sales_log" }