populate purchaser_code for bulk upload errors

- when log type is sales

app/services/bulk_upload/sales/validator.rb

@@ -153,6 +153,7 @@ class BulkUpload::Sales::Validator
         bulk_upload.bulk_upload_errors.create!(
           field: error.attribute,
           error: error.type,
+          purchaser_code: row_parser.field_1,
           row:,
           cell: "#{cols[field_number_for_attribute(error.attribute) + col_offset - 1]}#{row}",
         )

spec/services/bulk_upload/sales/validator_spec.rb

@@ -36,5 +36,12 @@ RSpec.describe BulkUpload::Sales::Validator do
         validator.call
       }.to change(BulkUploadError, :count).by(1)
     end
+
+    it "populates purchaser_code" do
+      validator.call
+
+      error = BulkUploadError.last
+      expect(error.purchaser_code).to eql("1")
+    end
   end
 end