django - 我如何在Django中更新删除一个内容？

我在Django有一个表单，让用户写日记。 现在我想添加编辑按钮和删除按钮，但我有错误。以下是代码。模板(detail.html)

...
<form method='post'>
    {% csrf_token %}
    <div>
        <a href="{% url 'delete' authuser_id slug %}">
            <button class='btn btn-primary button-delete'>Delete</button>
        </a>
    </div>
</form>

urls.py

...
urlpatterns = [
...
    path('detail/<int:authuser_id>/<slug:slug>', views.detail, name='detail'),
    path('detail/<int:authuser_id>/<slug:slug>', views.delete, name='delete'),
]

视图.py

from .models import DiaryInput
...

def detail(request, authuser_id, slug):
    todayDiary = DiaryInput.objects.get(slug=slug)
    return render(request, '/detail.html', {'todayDiary' : todayDiary})

def delete(request, authuser_id, slug):
    todayDiary = DiaryInput.objects.get(slug=slug)
    todayDiary.delete()
    return redirect('/')

当我进入一个特定的日记的详细页面时，我得到一个错误，说: 'delete'的反向参数'('',)'没有找到。尝试了1种模式。['detail(?P[0-9]+)(?P[-a-zA-Z0-9_]+)delete$'] 我认为我的模板有问题，在 {% url %} 标签，但我不知道我做错了什么。我很感激你的帮助:)

你为两个URLs指定了相同的路径。detail 和 delete 所以改变那里。

 path('detail/<int:authuser_id>/<slug:slug>', views.detail, name='detail'),
 path('delete/<int:authuser_id>/<slug:slug>', views.delete, name='delete'),

现在在模板中

 <a href="{% url 'delete' todayDiary.id todayDiary.slug %}">

views.py

def add(request):
    if request.method == 'POST':
        form = EditEntryForm(data=request.POST)
        if form.is_valid():
            form.save()
            return redirect('home')             
    else:
        form = AddEntryForm()
    return render(request, '/add.html', {'form':form})

def update(request, id):
    entry = get_object_or_404(Entry, id=id)
    if request.method == 'POST':
        form = EditEntryForm(data=request.POST, instance=entry)
        if form.is_valid():
            form.save()
            return redirect('home')             
    else:
        form = EditEntryForm(instance=entry)
    return render(request, '/edit.html', {'form':form})

def delete(request, id, slug):
    Entry.objects.filter(id=id, slug=slug).delete()
    return redirect('home')

urls.py

path('add_entry/', views.add, name='add'),
path('update/<int:id>/', views.update, name='update'),    
path('delete/<int:id>/<slug:slug>/', views.delete, name='delete'),

<a href="{% url 'detail' todayDiary.authuser_id todayDiary.slug %}">{{ entry.title }}</a>
<a href="{% url 'update' todayDiary.authuser_id %}">Update</a>
<a href="{% url 'delete' todayDiary.authuser_id todayDiary.slug %}">Delete</a>

并在模板中渲染表单为{{form.as_p }}，并且最好将细节和删除的路径分开，不要混为一谈.希望这对你有帮助。