我有这个错误 delete() missing 1 required positional argument: 'id' 当我点击删除按钮

Question

当我点击删除按钮时，我应该将它从我的数据库中删除，但我却得到了这个错误：delete() missing 1 required positional argument: 'id' 如图所示以下：

urls.py

urlpatterns = [

        path('', views.login_user, name='login'),
        path('home/', views.home, name='home'),
        path('allstaff/', views.allstaff, name='allstaff'),
        #path('delete_order/<str:pk>/', views.deleteOrder, name="delete_order"),
        path('delete', views.delete, name='delete'),
        path('logout/', views.logout_view, name='logout'),
        path('register/', views.register_view, name='register'),
        path('edit-register/', views.edit_register_view, name='edit_register'),
]

views.py

def delete(request, id):
    context = {}
    user = get_object_or_404(User, id=id)
    if request.method == "POST":
        user.delete(id)
        return HttpResponseRedirect("/home")
    return render(request, 'delete.html', context)

allstaff.py

{% extends "home.html" %}
{% block content %}
<style>
table {
    border-collapse:separate;
    border:solid black 1px;
    border-radius:6px;
    -moz-border-radius:6px;
}

td, th {
    border-left:solid black 1px;
    border-top:solid black 1px;
}

th {
    border-top: none;
}

td:first-child, th:first-child {
     border-left: none;
}



</style>

   <div style="padding-left:16px">
     <br>

 <div class="form-block">
     <table>
  <tr>
    <th>Staff Name</th>
      <th>Staff Username</th>
      <th>Email</th>
      <th>Date Joined</th>
      <th>Action</th>
  </tr>
         {% for user in allusername %}
  <tr>
        <td>{{user.first_name}} {{user.last_name}}</td><td>{{user.username}}</td><td>{{user.email}}</td><td>{{user.date_joined}}</td><td><a class="btn btn-sm btn-info" href="{}">Update</a></td><td><a class="btn btn-sm btn-danger" href="/delete">Delete</a></td>

     </tr>

{% endfor %}

</table>
     <br>
     



</div>
   </div>
{% endblock %}

我错过了什么？我如何让它工作，以便当我点击删除按钮时，它会自动从我的数据库中删除？

Answer 1

URL 应该包含删除该用户的主键（或其他唯一）字段，因此：

path('delete/<strong><int:id>/</strong>', views.delete, name='delete'),

然后在模板中，我们制作一个迷你表单，其中包含要删除的 User 对象的 id：

{% for user in allusername %}
…
<td>
    <form action="<strong>{% url 'delete' user.id %}</strong>" method="post">
        {% csrf_token %}
        <button type="submit" class="btn btn-sm btn-danger">Delete</button>
    </form>
</td>
…
{% endfor %}

最后，在您看来，您删除了 User 对象 而没有再次指定 ID：您已经有了正确的对象，因为您使用 User 获取了id=id:

from django.shortcuts import redirect def delete(request, id): user = get_object_or_404(User, id=id) if request.method == 'POST': user.delete() return redirect('home') return render(request, 'delete.html')

我有这个错误 delete() missing 1 required positional argument: 'id' 当我点击删除按钮

I have this error delete() missing 1 required positional argument: 'id' when I click on the delete button

python

django

django-urls

django-views