我试图做一个系统，用户获得点，如果他问了一个问题，但点字段没有增加，当用户这样做。
我的模特：

class Post(models.Model):
    author = models.ForeignKey(User, on_delete=models.PROTECT, related_name='post')
    category = models.ForeignKey(Category, on_delete=models.PROTECT)
    type = models.CharField(max_length=30, choices=TYPE, default='Question')

    title = models.CharField(max_length=100, unique=True)
    content = models.TextField()

    views = models.IntegerField(default=0)
    votes = models.ManyToManyField(User, blank=True, related_name='vote')
    featured = models.BooleanField(default=False)

    date_posted = models.DateTimeField(default=timezone.now)

我的看法：

class PostCreateView(LoginRequiredMixin, CreateView):
    model = Post
    success_url = '/'
    fields = ['title', 'content', 'category']

    def form_valid(self, form):
        form.instance.author = self.request.user
        form.instance.author.points + 15
        return super().form_valid(form)

当我转到管理页面中的当前用户时，该值没有更改。