views.py 文件源码

def nodes_detail(request, pk):
    """
    Retrieve, update or delete a node.
    """
    try:
        node = Node.objects.get(intent=pk)
    except Node.DoesNotExist:
        return HttpResponse(status=404)

    if request.method == 'GET':
        serializer = NodeSerializer(node)
        return JsonResponse(serializer.data)

    elif request.method == 'PUT':
        data = JSONParser().parse(request)
        serializer = NodeSerializer(node, data=data)
        if serializer.is_valid():
            serializer.save()
            return JsonResponse(serializer.data)
        return JsonResponse(serializer.errors, status=400)

    elif request.method == 'DELETE':
        node.delete()
        return HttpResponse(status=204)