Add static period to filename

app/services/exports/user_export_service.rb

@@ -24,7 +24,7 @@ module Exports
 
       base_number_str = "f#{base_number.to_s.rjust(4, '0')}"
       increment_str = "inc#{increment.to_s.rjust(4, '0')}"
-      "core_#{collection}_#{base_number_str}_#{increment_str}".downcase
+      "#{collection}_2024_2025_apr_mar_#{base_number_str}_#{increment_str}".downcase
     end
 
     def retrieve_resources(recent_export, full_update, _collection)

spec/services/exports/user_export_service_spec.rb

@@ -8,8 +8,8 @@ RSpec.describe Exports::UserExportService do
   let(:xml_export_file) { File.open("spec/fixtures/exports/user.xml", "r:UTF-8") }
   let(:local_manifest_file) { File.open("spec/fixtures/exports/manifest.xml", "r:UTF-8") }
 
-  let(:expected_zip_filename) { "core_users_f0001_inc0001.zip" }
-  let(:expected_data_filename) { "core_users_f0001_inc0001_pt001.xml" }
+  let(:expected_zip_filename) { "users_2024_2025_apr_mar_f0001_inc0001.zip" }
+  let(:expected_data_filename) { "users_2024_2025_apr_mar_f0001_inc0001_pt001.xml" }
   let(:expected_manifest_filename) { "manifest.xml" }
   let(:start_time) { Time.zone.local(2022, 5, 1) }
   let(:organisation) { create(:organisation, with_dsa: false) }
@@ -177,11 +177,11 @@ RSpec.describe Exports::UserExportService do
         end
 
         it "returns a correct archives list for manifest file" do
-          expect(export_service.export_xml_users(full_update: true)).to eq({ "core_users_f0002_inc0001" => start_time })
+          expect(export_service.export_xml_users(full_update: true)).to eq({ "users_2024_2025_apr_mar_f0002_inc0001" => start_time })
         end
 
         it "generates a ZIP export file with the expected filename" do
-          expect(storage_service).to receive(:write_file).with("core_users_f0002_inc0001.zip", any_args)
+          expect(storage_service).to receive(:write_file).with("users_2024_2025_apr_mar_f0002_inc0001.zip", any_args)
           export_service.export_xml_users(full_update: true)
         end
       end