如何在 Django

Question

我正在尝试为帖子中当前用户的单个评论添加删除按钮。我在我的 views.py 中尝试了下面的功能，但它返回错误：找不到页面（404） 请求方式：GET 请求网址：http://127.0.0.1:8000/comments/15/delete/ 提出者：feed.views.comment_delete

知道我做错了什么吗？

views.py

@login_required
def comment_delete(request, pk):
    comment = get_object_or_404(Comments, pk=pk)
    if request.user.id == comment.username_id:
        Comments.objects.get(pk=pk).delete()
        messages.error(request, f'Comment Deleted')
    return redirect('post-detail', pk=pk)

models.py

class Post(models.Model):
    description = models.TextField(max_length=255)
    pic = models.ImageField(upload_to='path/to/img', blank=True)
    date_posted = models.DateTimeField(default=timezone.now)
    user_name = models.ForeignKey(User, on_delete=models.CASCADE)
    tags = models.CharField(max_length=100, blank=True)

    def __str__(self): 
        return self.description

    def get_absolute_url(self):
        return reverse('post-detail', kwargs={'pk': self.pk})
 

class Comments(models.Model):
    post = models.ForeignKey(Post, related_name='details', on_delete=models.CASCADE)
    username = models.ForeignKey(User, related_name='details', on_delete=models.CASCADE)
    comment = models.CharField(max_length=255)
    comment_date = models.DateTimeField(default=timezone.now)

post_detail.html

        <h4 class="comment_text">Comments</h4>
        <div class="row">
            <div class="col-xl-9 col-md-10 m-auto order-xl-2 mb-0 mb-xl-0">
                {% if post.details.all %}
                <div class="card card-signin my-0">
                {% for detail in post.details.all %}
                    <div class="card-body">
                        <a href="{{ detail.username.profile.get_absolute_url }}">
                            <img src="{{ detail.username.profile.image.url }}" class="rounded-circle" width="30" height="30" alt="">
                        </a>
                        <a class="text-dark" href="{{ detail.username.profile.get_absolute_url }}"><b>{{ detail.username }}</b></a>
                         <a class="comment_delete" href="{% url "comment-delete" user.id %}">delete</a>
                        
                        <br><small>{{ detail.comment_date }}</small><br><br>
                        <p class="card-text text-dark">{{ detail.comment }}</p>
                    </div>
                    <hr class="my-1">
                {% endfor %}
                </div>
                {% else %}
                    <p>No comments to show!</p>
                {% endif %}
            </div>

Answer 1

在你的模板中你写了 {% url "comment-delete" user.id %}，而实际上视图期望的参数是 comments id/pk。将其更改为 {% url "comment-delete" detail.pk %}