"删除模型实例"按钮

Question

我有一个 for 循环，列出了我模型中的所有证词实例。我想让下面代码中的按钮在单击时删除相关实例。

.html

{% block content %}
{% for testimony in testimonies %}
<a href="{% url "main:update_testimony_view" slug=testimony.slug %}">
<h3>{{testimony.name}}</h3>
<button type="button" class="btn btn-danger">Delete</button>
</a>
{% endfor %}
****
{% endblock content %}

views.py

def create_testimony_view(request):
if request.method == "POST":
form = CreateTestimonyForm(request.POST)
if form.is_valid():
testimony = form.save(commit=False)
testimony.save()
return redirect('main:homepage_view')
else:
form = CreateTestimonyForm
context = {
"title": "Create - Testimony",
"form": form,
"testimonies": Testimony.objects.all(),
}
return render(request=request, template_name="main/create/create_testimony.html", context=context)

def update_testimony_view(request, slug):
instance = get_object_or_404(Testimony, slug=slug)
if request.method == 'POST':
form = CreateTestimonyForm(
request.POST, request.FILES, instance=instance)
if form.is_valid():
testimony = form.save(commit=False)
testimony.save()
return redirect('main:homepage_view')
else:
form = CreateTestimonyForm(instance=instance)
context = {
"title": "Update - Testimony",
"form": form,
"instance": instance,
}
return render(request=request, template_name="main/create/create_testimony.html", context=context)

感谢您的任何帮助

Answer 1

您需要向将删除实例的服务器发出POST请求。

请查看Form文档。 https://docs.djangoproject.com/en/3.0/topics/forms/

Answer 2

您需要添加简单的表单和视图才能删除证词。

.html

{% for testimony in testimonies %}
<a href="{% url "main:update_testimony_view" slug=testimony.slug %}">
<h3>{{testimony.name}}</h3>
<form action="{% url 'main:delete_testimony' testimony.pk %}" method="POST">
<button type="button" class="btn btn-danger">Delete</button>
</form>
</a>
{% endfor %}

视图

def delete_testimony(request, pk):
deleted = False
try:
Testimony.objects.delete(pk=pk)
deleted = True
except Testimony.DoesNotExist:
pass
return JsonResponse({'deleted':deleted})