Question

我正在按照教程制作待办事项列表网站。在尝试实现删除按钮时，我遇到此错误。

找不到页面（404）请求方法：GET请求网址：http://localhost:8000/%7B%25%20url%20'删除'％20things.id％20％25 Django使用todo.urls中定义的URLconf，尝试了这些URL 模式，按此顺序： admin / [name ='home'] delete /“” [name ='delete']当前路径，{％url'delete'things.id％，与任何这些都不匹配。

相关代码： views.py

from django.shortcuts import render, redirect
from .models import List
from .forms import ListForm
from django.contrib import messages
# Create your views here.
def home(request):
    if request.method == 'POST':
        form = ListForm(request.POST or None)

        if form.is_valid():
            form.save()
            all_items = List.objects.all
            messages.success(request, ('Item Has Been Added To List!'))
            return render(request, 'home.html', {'all_items': all_items})

    else:
        all_items = List.objects.all
        return render(request, 'home.html', {'all_items': all_items})

def delete(request, list_id):
    item = List.objects.get(pk=list_id)
    item.delete()
    messages.success(request, ('Item Has Been Deleted!'))
    return redirect('home')

home.html

<tr>
            <td>{{ things.item }}</td>
            <td><center>{{ things.completed }}</center></td>
            <td><center><a href = "{% url 'delete' things.id %}"> Delete</a></center></td>
</tr>

urls.py

from django.urls import path
from . import views
urlpatterns = [
    path('', views.home, name="home"),
    path('delete/<list_id>', views.delete, name="delete"),
]

Answer 1

urls.py：

from django.urls import path
from . import views
urlpatterns = [
    path('', views.home, name="home"),
    path('delete/<int:list_id>/', views.delete, name="delete"),
]

您需要在网址中指定int类型。

还有结尾的/

Answer 2

您需要一个正则表达式来表示一个数字

path('delete/(?P<list_id>)[\d]+)/$', views.delete, name="delete"),

Django-删除按钮未重定向到正确的路径

2 个答案: