def topic_list(request):
# GET list of topics, POST a new topic, DELETE all topics
if request.method == 'GET':
topics = Topic.objects.all()
name = request.GET.get('name', None)
if name is not None:
topics = topics.filter(name__icontains=name)
topics_serializer = TopicSerializer(topics, many=True)
return JsonResponse(topics_serializer.data, safe=False)
elif request.method == 'POST':
topic_data = JSONParser().parse(request)
topic_serializer = TopicSerializer(data=topic_data)
if topic_serializer.is_valid():
topic_serializer.save()
return JsonResponse(topic_serializer.data,
status=status.HTTP_201_CREATED)
elif request.method == 'DELETE':
count = Topic.objects.all().delete()
return JsonResponse(
{
'message': '{} Topic were deleted successfully!'.format(
count[0])
},
status=status.HTTP_204_NO_CONTENT)
return JsonResponse(topic_serializer.errors,
status=status.HTTP_400_BAD_REQUEST)
def post(self, request):
data = JSONParser().parse(request)
serializer = TopicSerializer(data=data)
if serializer.is_valid():
serializer.save()
return JsonResponse(serializer.data, status=201)
return JsonResponse(serializer.errors, status=400)
def topic_detail(request, pk):
# find topic by pk (id)
try:
topic = Topic.objects.get(pk=pk)
if request.method == 'GET':
topic_serializer = TopicSerializer(topic)
return JsonResponse(topic_serializer.data)
elif request.method == 'PUT':
topic_data = JSONParser().parse(request)
topic_serializer = TopicSerializer(topic, data=topic_data)
if topic_serializer.is_valid():
topic_serializer.save()
return JsonResponse(topic_serializer.data)
return JsonResponse(topic_serializer.errors,
status=status.HTTP_400_BAD_REQUEST)
elif request.method == 'DELETE':
topic.delete()
return JsonResponse({'message': 'Topic was deleted successfully!'},
status=status.HTTP_204_NO_CONTENT)
except Topic.DoesNotExist:
return JsonResponse({'message': 'The Topic does not exist'},
status=status.HTTP_404_NOT_FOUND)