DjangoPythonUpdateView中的Delete函数正在复制，而不是删除

我已经创建了一个Django应用程序，允许用户输入他们的股票交易，作为一个日志(log)工具.当用户单击索引页中的单个日记条目时，他们将被带到一个详细页面，显示该单个条目的所有信息(Single_Entry.html).此页面由UpdateView处理.在该页面中，用户可以编辑/更新任何信息，也可以删除该特定条目.为了实现这一点，我从django.views.Generic.dit导入了DeletionMixin模块.

然而，当我点击表单中的"Delete"按钮时，条目是复制的，而不是删除的！有人知道为什么会发生这种事吗？？谢谢你的帮忙!

以下是我在views.py中的基于类的视图:

class SingleEntryView(UpdateView):
  template_name = "single_entry.html"
  model = Entry
  fields = ['ticker', 'strategy', 'result', 'comments', 'image']
  success_url = '/'
    
  def post(self, request, *args, **kwargs):
    if "delete_button" in self.request.POST:
      return self.delete(request, *args, **kwargs)
    
  def update_post(self, form, pk):
    if "update_button" in self.request.POST:
      form.instance.user = self.request.user
    return super(SingleEntryView, self).update_post(form)

single_entry.html:

{% extends 'base.html' %}

{% block title %}
    Trading Journal - Entry
{% endblock title %}Trading Journal

{% block content %}

<form method="POST" action="/">
    {% csrf_token %}
    {% for field in form %}
        {{field.label_tag}}
        {{field}}
        {% if field.errors %}
            <small class="error">{{ field.errors|striptags }}</small>            
        {% endif %}
    {% endfor %}
    <button type="submit" name="update_button">Save</button>
    <button type="submit" name="delete_button">Delete</button>
    
</form>

<img src="{{ entry.image.url }}" alt="{{ entry.result }}">

{% endblock content %}

Urls.py:

from django.urls import path
from django.contrib import admin
from . import views

urlpatterns = [
    path("", views.EntryView.as_view()),
    path("entries/<int:pk>/", views.SingleEntryView.as_view(), name="single-entry"),
    path("admin/", admin.site.urls)
]

向ChatGPT寻求帮助，它在我的UpdateView中推荐了以下代码(这给了我同样的问题):

  def post(request, self, form):
    print("post request")
    print("request.post", request.POST)
    if "delete" in request.POST:
      print("delete found")
      return self.delete_entry()
    else:
      print("else statement")
      #return super(SingleEntryView, self).post(request, form)

      return super().post(request, form)
      #return super().post(request, *args, **kwargs)      

  def delete_entry(self):
    entry = self.get_object()
    print("get object")
    entry.delete()
    messages.success(self.request, "Your entry was deleted successfully.")
    return redirect("/")

以下是我的models.py:

    from django.db import models
    from django.core.validators import MinValueValidator, MaxValueValidator
    from django.urls import reverse
    from django.utils.text import slugify


    class Entry(models.Model):
        ONEORB="1-Min ORB"
        FIVEORB="5-Min ORB"
        ABCD="ABCD"
        REVERSAL="Reversal"
        PROFIT="Profit"
        LOSS="Loss"
        RESULT_CHOICES = (
            (PROFIT, "Profit"),
            (LOSS, "Loss")
        )
        STRATEGY_CHOICES = (
            (ONEORB,"1-Min ORB"),
            (FIVEORB,"5-Min ORB"),
            (ABCD,"ABCD"),
            (REVERSAL,"Reversal")
        )

        entered_date=models.DateField(auto_now_add=True)
        ticker=models.CharField(max_length=8, default="")
        strategy=models.CharField(max_length=12, choices=STRATEGY_CHOICES, default="ONEORB")
        result=models.CharField(max_length=6, choices=RESULT_CHOICES, default="PROFIT")
        comments=models.TextField(max_length=300, blank=True)
        image = models.ImageField(upload_to="", null=True, blank=True) #will save to default BASE_DIR which is 'uploads'

        def __str__(self):
            return f"{self.result} {self.entered_date}"