关于Django模板中使用Filter Queryset的技术咨询

我目前仍在校学习，是Python语言及Django框架的新手，正通过项目实践学习最佳开发实践。当前我正在开发一个类似StackOverflow的项目，包含以下核心模型：

• Topic模型：用户可发布新话题
• Reply模型：用户可针对特定话题发布回复
• Likes模型：用户可对话题或回复进行点赞/点踩

以下是项目的models.py代码：

class Topic(models.Model):
    user = models.ForeignKey(CustomUser, on_delete=models.CASCADE)
    title = models.CharField(max_length=400)
    like = models.IntegerField(default=0)
    dislike = models.IntegerField(default=0)
    image = models.FileField(blank=True, null=True)
    created_date = models.DateTimeField(auto_now=True)

    def __str__(self):
        return self.title[0:51]

class Reply(models.Model):
    user = models.ForeignKey(CustomUser, on_delete=models.CASCADE)
    topic = models.ForeignKey(Topic, on_delete=models.CASCADE)
    reply = models.TextField()
    created_date = models.DateTimeField(auto_now=True)

    def likes(self):
        return Likes.objects.filter(reply=self, reply_flag=1).count()
    likes.short_description = 'likes'

    def dislikes(self):
        return Likes.objects.filter(reply=self, reply_flag=-1).count()
    dislikes.short_description = 'dislikes'

    def __str__(self):
        return self.reply

class Likes(models.Model):
    user = models.ForeignKey(CustomUser, on_delete=models.CASCADE)
    reply = models.ForeignKey(Reply, on_delete=models.CASCADE)
    reply_flag = models.CharField(max_length=5, choices=[('1', 'Like'), ('-1', 'Dislike')])

想请教一下，我该如何在Django模板中使用Filter处理Queryset呢？

内容的提问来源于stack exchange，提问作者dan