latest_training = Training.objects.latest('created_time')
latest_exhibiting = Exhibiting.objects.latest('created_time')
return Response({'publish_updatetime': latest_publish.created_time,
    'meeting_updatetime': latest_meeting.created_time,
    'training_updatetime': latest_training.created_time,
    'exhibiting_updatetime': latest_exhibiting.created_time})
How can I register a single view (not a viewset) on my router?