Example of writing views with django-serializers

gistfile1.py

# serializers.py

class CommentSerializer(serializers.Serializer):
    email = serializers.EmailField()
    content = serializers.CharField(max_length=200)
    created = serializers.DateTimeField()

    def restore_object(self, attrs, instance=None):
        """
        Create or update a new comment instance.
        """
        if instance:
            instance.email = attrs['email']
            instance.content = attrs['content']
            instance.created = attrs['created']
            return instance
        return models.Comment(**attrs)


# views.py

class JSONResponse(HttpResponse):
    """
    An HttpResponse that renders it's content into JSON.
    """

    def __init__(self, data, **kwargs):
        content = JSONRenderer().render(data)
        kwargs['content_type'] = 'application/json'
        super(JSONResponse, self).__init__(content, **kwargs)


def comment_root(request):
    """
    List all comments, or create a new comment.
    """
    if request.method == 'GET':
        comments = Comment.objects.all()
        serializer = CommentSerializer(instance=comments)
        return JSONResponse(serializer.data)

    elif request.method == 'POST':
        data = JSONParser().parse(request)
        serializer = CommentSerializer(data)
        if serializer.is_valid():
            comment = serializer.object
            comment.save()
            return JSONResponse(serializer.data, status=201)
        else:
            return JSONResponse(serializer.error_data, status=400)


def comment_instance(request, pk):
    """
    Retrieve, update or delete a comment instance.
    """
    try:
        comment = Comment.objects.get(pk=pk)
    except Comment.DoesNotExist:
        return HttpResponse(status=404)

    if request.method == 'GET':
        serializer = CommentSerializer(instance=comment)
        return JSONResponse(serializer.data)

    elif request.method == 'PUT':
        data = JSONParser().parse(request)
        serializer = CommentSerializer(data, instance=comment)
        if serializer.is_valid():
            comment = serializer.object
            comment.save()
            return JSONResponse(serializer.data)
        else:
            return JSONResponse(serializer.error_data, status=400)

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