如何使用模态外键
如何使用模态外键
这个问题已经有答案了:
当我的模型看起来像这样时,我想在不必进入不同页面的情况下显示评论:
class Posts(models.Model): user = models.ForeignKey(User, on_delete=models.CASCADE) post_name = models.CharField(max_length=150) desription = models.CharField(max_length=200) image = models.ImageField(upload_to="images/uploads") like = models.ManyToManyField(User, related_name="liked", blank=True, default=None) like_count = models.BigIntegerField(default=0) date_added = models.DateField(auto_now_add=True, blank=True) # @property # def like_count(self): # return self.like.count() def __str__(self): return self.desription class Meta: db_table = "Posts" ordering = ["date_added"] class Comments(models.Model): post = models.ForeignKey(Posts, on_delete=models.CASCADE) comment = models.CharField(max_length=500) user = models.ForeignKey(User, on_delete=models.CASCADE) date_added = models.DateField(auto_now=True, blank=True) class Meta: db_table = "Comments" ordering = ['date_added']
在索引中使用:
{{post.comment}} ???
admin 更改状态以发布 2023年5月21日
在相关对象从此对象返回的关系中使用的名称。
示例
class Comments(models.Model): post = models.ForeignKey(Posts, related_name="comments", on_delete=models.CASCADE) comment = models.CharField(max_length=500) user = models.ForeignKey(User, on_delete=models.CASCADE) date_added = models.DateField(auto_now=True, blank=True) class Meta: db_table = "Comments" ordering = ['date_added']
现在你可以像这样访问特定帖子的评论:
{{post.comments}}