成功url在基于类的DeleteView中不起作用

Question

基于类的删除视图的成功url由于某些原因不起作用

in views.py

# allows a user to delete a project
class DeletePost(DeleteView):
    template_name = 'user_posts/post_delete.html'
    model = Post
    # return to the all posts list
    success_url = reverse_lazy('posts_list')

# make sure the user is looking at its own post
def dispatch(self, request, *args, **kwargs):
    obj = self.get_object()
    if not obj.user == self.request.user:
        raise Http404("You are not allowed to Delete this Post")
    return super(DeletePost, self).dispatch(request, *args, **kwargs)

在URL.py中：

path('list/', PostsListView.as_view(), name="posts_list"),
path('create-post/', CreatePostView.as_view(), name="post_create"),
path('update-post/<int:pk>', UpdatePost.as_view(), name="post_update" ),
path('delete-post/<int:pk>', DeletePost.as_view(), name="post_delete")

在HTML文件中：

{% extends 'base.html' %}
{% block content %}

<form action="." method="POST" style="width:80%;">
     {% csrf_token %}
     <h3>Do You want to delete this post: "{{ object.title }}"</h3>

     <input class="btn btn-primary" type="submit" value="Confirm"/>
     <a href="{% url 'posts_list' %}">Cancel</a>

</form>
{% endblock content %}

每当我单击“确定”删除特定项目时，它不会返回到以下内容的帖子列表：

网页上的错误图像

Answer 1

您确实没有此URL：

forum-posts/delete-post/

实际上，您忘记指定一个整数来指示必须删除的post_id。例如：

forum-posts/delete-post/1/