def get(_, lang, event_id): if lang == 'ja': cached_event = Cache.get('api_event_' + str(event_id)) if cached_event is None: event = Topic.get_event_published_by_id(event_id) if event is None: return JsonResponse({ 'message': 'Not Found' }, status=404) res = EventSerializer(event).data Cache.set('api_event_' + str(event_id), res) else: res = cached_event elif lang == 'en': cached_event_en = Cache.get('api_event_en_' + str(event_id)) if cached_event_en is None: event = TopicEn.get_event_published_by_id(event_id) if event is None: return JsonResponse({ 'message': 'Not Found' }, status=404) res = EventEnSerializer(event).data Cache.set('api_event_en_' + str(event_id), res) else: res = cached_event_en else: return JsonResponse({ 'message': 'Not Found' }, status=404) return JsonResponse(res, safe=False)