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class UserLikePost(models.Model):user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='liked_posts')post = models.ForeignKey(Post, on_delete=models.CASCADE, related_name='likers')created_at = models.DateTimeField(auto_now_add=True, verbose_name='点赞时间')class Meta:unique_together = ('user', 'post')def __str__(self):return f"{self.user.nickname} 点赞了 {self.post.title}"class UserLikeComment(models.Model):user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='liked_comments')comment = models.ForeignKey(Comment, on_delete=models.CASCADE, related_name='likers')created_at = models.DateTimeField(auto_now_add=True, verbose_name='点赞时间')class Meta:unique_together = ('user', 'comment')def __str__(self):return f"{self.user.nickname} 点赞了 {self.comment.content}"class UserLikeCircle(models.Model):user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='liked_circles')circle = models.ForeignKey(Circle, on_delete=models.CASCADE, related_name='likers')created_at = models.DateTimeField(auto_now_add=True, verbose_name='点赞时间')class Meta:unique_together = ('user', 'circle')def __str__(self):return f"{self.user.nickname} 点赞了 {self.circle.name}"class UserLikeUser(models.Model):user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='liked_users')liked_user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='likers')created_at = models.DateTimeField(auto_now_add=True, verbose_name='点赞时间')class Meta:unique_together = ('user', 'liked_user')def __str__(self):return f"{self.user.nickname} 点赞了 {self.liked_user.nickname}""""用户收藏（帖子、圈子、评论）""" 石家庄网络推广广州网站优化公司苏州seo优化塘沽网站建设汕头网络推广app开发哪家公司好重庆网络营销泉州网站优化seo外包免费com域名注册徐州seo顾问重庆seo优化企业网站的建立专业设计网站百度seo优化公司淮安网络营销长沙微信公众号开发宁波外贸网站建设成都网站优化石家庄百度推广网站建设的技术支持又名林州站长网潍坊seo北京网站维护黄冈网站seo天山网站南通网站优化厦门seo公司企业网络策划管理网站网站互动