django 删除 post noReverseMatch

Question

正在尝试删除 post，但不知何故得到了 NoReverseMatch

views.py

@login_required
def task_detail(request, slug):
    '''
    Detailed view of all tasks on given project
    '''
    context = {}
    checklist   = get_object_or_404(Checklist, slug=slug)
    context.update({'checklist':checklist})
    form        = NotesForm(request.POST or None)
    if request.method == "POST":
        if form.is_valid():
            print("\n\n for is valid")
            author = Profile.objects.get(user=request.user) 
            new_note = form.save(commit=False)
            new_note.user = author
            new_note.checklist = checklist
            new_note.save()

            return redirect('task_detail', slug=slug)

    context.update({
        'form': form,
        'title': checklist,
    })

    return render(request, 'projects/checklist.html', context)

@login_required
def delete_notes(request, note_id = None):
    del_note = Note.objects.get(id = note_id)
    del_note.delete()

    return redirect('teams')

我的urls.py

urlpatterns = [
    path('projects/', teams, name='teams'),
    path('projects/project/<slug>/', projects, name='projects'),
    path('projects/tasks/<slug>/', project_detail, name='project_detail'),
    path('projects/checklist/<slug>/', task_detail, name='task_detail'),
    path('projects/checklist/delete_notes/', delete_notes, name='delete_notes'),
]

在 html 中，我只有一个带有 url 的 href 要删除

<a class="dropdown-item text-danger" href="{% url 'delete_notes' notes.id %}">Delete</a>

得到；对 'delete_notes' 进行反转，未找到参数“(14,)”。尝试了 1 种模式：['projects/checklist/delete_notes/\Z']

不太确定还缺少什么，以为清单中的 slug 已经通过了？

重定向更新

urlpatterns = [
    path('projects/', teams, name='teams'),
    path('projects/project/<slug>/', projects, name='projects'),
    path('projects/tasks/<slug>/', project_detail, name='project_detail'),
    path('projects/checklist/<slug>/', task_detail, name='task_detail'),
    path('projects/checklist/delete_notes/<int:note_id>/<slug:slug>/', delete_notes, name='delete_notes'),

@login_required
@require_http_methods(['post', 'delete'])
def delete_notes(request, note_id, slug):
    '''
    Delete given note
    '''
    del_note = Note.objects.filter(id=note_id).delete()
    return redirect('task_detail', slug=slug)

更新了 slug

在html

<form method="POST" action="{% url 'delete_notes' notes.id title.slug %}">
     {% csrf_token %}
     <a class="dropdown-item">
        <button type="submit"class="btn btn-danger">Delete</button>
     </a>
</form>

Answer 1

您应该指定一个参数放置 notes.id 参数的位置，例如：

path('projects/checklist/delete_notes/<strong><int:note_id></strong>/', delete_notes, name='delete_notes'),

但是，此类视图只能通过 POST 或 DELETE 请求触发，而不能通过 GET 请求触发：GET 请求只能用于检索数据，不要改变实体。

因此您可以通过以下方式保护视图：

from django.views.decorators.http import <strong>require_http_methods</strong>

@login_required
<strong>@require_http_methods(['POST', 'DELETE'])</strong>
def delete_notes(request, note_id):
    Note.objects.filter(id=note_id).delete()
    return redirect('teams')

并且在模板中您应该使用“mini-form”:

<form <strong>method="post"</strong> <strong>action="{% url 'delete_notes' notes.id %}</strong>">
    {% csrf_token %}
    <button type="submit">Delete</button>
</form>

如果你想重定向到给定任务的task_detail，你可以添加一个额外的参数：

path('projects/checklist/delete_notes/<strong><int:note_id></strong>/<strong><slug:slug></strong>/', delete_notes, name='delete_notes'),

并重定向：

from django.views.decorators.http import <strong>require_http_methods</strong>

@login_required
<strong>@require_http_methods(['POST', 'DELETE'])</strong>
def delete_notes(request, note_id, <b>slug</b>):
    Note.objects.filter(id=note_id).delete()
    return redirect('task_detail', <b>slug=slug</b>)

那么在表单中你应该传递任务的 slug:

<form method="post" action="{% url 'delete_notes' notes.id <b>task.slug</b> %}">
    {% csrf_token %}
    <button type="submit">Delete</button>
</form>

django 删除 post noReverseMatch

django delete post noReverseMatch

python

html

django

django-views

django-urls

重定向更新