在django中删除后如何重定向到页面？

Question

我试图在删除一个我不知道但它不起作用的对象后重定向到一个页面。该对象被删除但它没有重定向到任何页面有人可以帮助我吗？ 如果您需要更多代码，可以问我。 谢谢 ！

删除产品的浏览量

@login_required() 
def delete_product(request, product_id):
    delete = get_object_or_404(Product, pk=product_id)
    form = NewPro(instance=delete)
    if request.method == 'POST':
        form = NewPro(request.POST, request.FILES, instance=delete)
        if form.is_valid():
            delete.delete()

            return redirect('store_details')
        else:
            form = NewPro(instance=delete)
    return render(request, "default/product_delete.html", {'form': form, 'delete': delete})

网址格式

from django.urls import path
from . import views
from stores.urls import views

app_name = 'stores'

urlpatterns = [
    path('<int:store_id>/store_details/', views.store_details, name='store_details'),

]

 urlpatterns = [
    path('<int:product_id>/product', views.product, name='products_details'),
    path('add_products/', views.pro, name='add_products'),
    path('', views.index_products, name='index_products'),
    path('<int:product_id>/detail_product', views.detail_product, name='detail_product'),
    path('<int:product_id>/edit_product', views.edit_product, name='edit_product'),
    path('<int:product_id>/delete_product', views.delete_product, name='delete_product')

]

Answer 1

错误提示django无法解析视图store_details的路径。您可以使用django.urls 中的reverse 方法。

from django.urls import reverse

@login_required() 
def delete_product(request, product_id):
    delete = get_object_or_404(Product, pk=product_id)
    form = NewPro(instance=delete)
    if request.method == 'POST':
        # if this form is not valid we rander it again, so no need for else statement
        form = NewPro(request.POST, request.FILES, instance=delete)
        if form.is_valid():
            delete.delete()
            return redirect(reverse('stores:store_details'))
    # if it's not POST method render an empty form    
    else:
        form = NewPro()
    return render(request, "default/product_delete.html", {'form': form, 'delete': delete})

urls.py 的产品应用：

from django.urls import path
from . import views

app_name = 'product'

urlpatterns = [
    path('<int:product_id>/product', views.product, name='products_details'),
    path('add_products/', views.pro, name='add_products'),
    path('', views.index_products, name='index_products'),
    path('<int:product_id>/detail_product', views.detail_product, name='detail_product'),
    path('<int:product_id>/edit_product', views.edit_product, name='edit_product'),
    path('<int:product_id>/delete_product', views.delete_product, name='delete_product')
]

urls.py 的商店应用：

from django.urls import path
from . import views

app_name = 'stores'

urlpatterns = [
    path('<int:store_id>/store_details/', views.store_details, name='store_details'),
]    

包含的 URLconf 模块中的app_name 属性有助于 URL 的反向解析

我希望这会有所帮助。

Answer 2

您没有为发布请求设置表单，请将else: 移回一个选项卡。

正确的语法：

@login_required() 
def delete_product(request, product_id):
    delete = get_object_or_404(Product, pk=product_id)
    form = NewPro(instance=delete)
    if request.method == 'POST':
        form = NewPro(request.POST, request.FILES, instance=delete)
        if form.is_valid():
            delete.delete()

            return redirect('store_details')
    else:
        form = NewPro(instance=delete)
    return render(request, "default/product_delete.html", {'form': form, 'delete': delete})