NoReverseMatch at / Reverse for 'product' 没有未找到的参数。尝试了 1 种模式：['product/(?P<slug>[-a-zA-Z0-9_]+)/$']

Question

您好，我正在学习 Django，对此我还是个新手。我想要这样的网址：www.mysite.com/product/product-1 但我不知道它不起作用

models.py

class Item(models.Model):
     title = models.CharField(max_length=100)
     price = models.FloatField()
     category = models.CharField(choices=CATEGORY_CHOICES, max_length=6)
slug = models.SlugField()

def __str__(self):
    return self.title

def get_absolute_url(self):
    return reverse("orders:product", kwargs={
        'slug': self.slug
    })

views.py

class ItemDetailView(DetailView):
      model = Item
      template_name = "product.html"

urls.py

from django.urls import path

from .views import HomeView, ItemDetailView, checkout

urlpatterns = [
    path("", HomeView.as_view(), name="home"),
    path("product/<slug>/", ItemDetailView.as_view(), name="product"),
    path("checkout/", checkout, name="checkout")
]

Answer 1

这就是您如何在 url.

中获得鼻涕虫

path("product/<slug:slug>/", ItemDetailView.as_view(), name="product"),

NoReverseMatch at / Reverse for 'product' 没有未找到的参数。尝试了 1 种模式：['product/(?P<slug>[-a-zA-Z0-9_]+)/$']

NoReverseMatch at / Reverse for 'product' with no arguments not found. 1 pattern(s) tried: ['product/(?P<slug>[-a-zA-Z0-9_]+)/$']

django

backend

slug