views.py 文件源码

def book_detail_by_title(request, title):
    """
    Retrieve, update or delete a book.
    """
    try:
        book = Book.objects.get(title=title)
    except Book.DoesNotExist:
        return HttpResponse(status=404)

    if request.method == 'GET':
        serializer = BookSerializer(book)
        return JsonResponse(serializer.data)

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

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


# Returns a Json response for the book in a given language if the request is a GET request.
# Adds a new book to the database if the request is a PUT request.
# Deletes book of title if the request is a DELETE request.