在Django中，如何通过单击链接来删除模板中的对象？

Question

我建立了一个通知系统。当"B“用户评论" A”用户的帖子时，通知发送给A。

这是我代码的一部分。

models.py

from django.db import models

from freeboard.models import FreeBoardComment
from users.models import CustomUser


class Notification(models.Model):
    TYPE_CHOCIES = (
        ("FreeBoardComment", "FreeBoardComment"),
    )

    creator = models.ForeignKey(CustomUser, on_delete=models.CASCADE, null=True, related_name="creator")
    to = models.ForeignKey(CustomUser, on_delete=models.CASCADE, null=True, related_name="to")
    notification_type = models.CharField(max_length=50, choices=TYPE_CHOCIES)
    comment = models.CharField(max_length=1000, blank=True, null=True)
    post_id = models.IntegerField(null=True)

    class Meta:
        ordering = ["-pk"]

    def __str__(self):
        return "From: {} - To: {}".format(self.creator, self.to)

notification/views.py

from django.views.generic import ListView

from .models import Notification


def create_notification(creator, to, notification_type, comment, post_id):
    if creator.email != to.email:
        notification = Notification.objects.create(
            creator=creator,
            to=to,
            notification_type=notification_type,
            comment=comment,
            post_id=post_id,
        )

        notification.save()


class NotificationView(ListView):
    model = Notification
    template_name = "notification/notification.html"

freeboard/views.py

...

@login_required
def comment_write(request, pk):
    post = get_object_or_404(FreeBoardPost, pk=pk)

    if request.method == 'POST':
        form = CreateFreeBoardComment(request.POST)

        if form.is_valid():
            comment = form.save(commit=False)
            comment.comment_writer = request.user
            comment.post = post
            comment.save()

            # 포인트
            award_points(request.user, 1)

            ### NOTIFICATION PART!!!! ###
            create_notification(request.user, post.author, "FreeBoardComment", comment.comment_text, post.pk)
            ### NOTIFICATION PART !!! ###

            return redirect("freeboard_detail", pk=post.id)
    else:
        form = CreateFreeBoardComment()
    return render(request, "bbs/freeboard/free_board_comment.html", {"form": form})

notification.html

{% extends "base.html" %}

{% block css_file %}
    <link href="/static/css/notification/notification.css" rel="stylesheet">
{% endblock %}

{% block content %}
    <ul class="list-group">
        {% for notification in notification_list %}
            <li class="list-group-item dropdown">
                <a href="{% if notification.notification_type == "FreeBoardComment" %}/free/{{ notification.post_id }}{% endif %}"
                   class="dropdown-toggle" style="color: #555; text-decoration: none;">
                    <div class="media">
                        <img src="{{ notification.creator.image.url }}" width="50" height="50"
                             class="pull-left img-rounded" style="margin: 2px"/>
                        <div class="media-body">
                            <h4 class="media-heading"><span
                                    class="genre">[@{{ notification.to.nickname }}]</span> {{ notification.comment }}
                            </h4>
                            <span style="font-size: 0.9rem;"><i
                                    class="fa fa-user"></i> {{ notification.creator.nickname }}</span>
                        </div>
                    </div>
                </a>
            </li>
        {% endfor %}
    </ul>
{% endblock %}

我想要添加的是没有模板的通知删除功能(删除视图)。

当用户单击通知并重定向到url时，我希望删除该通知。

我有办法这么做吗？

Answer 1

您的代码有点混乱，但我认为最好使用DRF并删除通知，而不像@Edgardo_Obregón提到的那样重定向。或者，如果您不想使用DRF，那么如果您只使用一个小视图是个好主意：

from django.views.decorators.csrf import csrf_exempt

@csrf_exempt # if you wanna bypass csrf, otherwise you can use csrf with ajax docs
def delete_notification(request,pk):
    if request.METHOD == "DELETE":   # optional
       notification = Notification.objects.get(pk=pk)
       if notification is not None:
          notification.delete()

带有ajax的csrf文档