NoReverseMatch在/反转为'single_product'，未找到任何参数。尝试了1个模式：['products /（？P <slug>）/ $']

Question

使用django 2.2遇到此错误，这是我的代码

urls.py

app_name ='产品'

urlpatterns = [
    url(r'^$', product_list, name='product-list'),
    url(r'^(?P<slug>.*)/$',single, name="single_product"),
    url(r'^category/(?P<slug>.*)/$',category_single,name="category")
]

产品模型中的views.py

def get_absolute_url(self,):
        return HttpResponseRedirect(reverse('single_product',args=[self.slug]))

模板

<h3>{{ product }}</h3>
<p>{{ product.description }}</p>
<p>{{ product.get_price }}</p>
<p>
   <a href ="{% url 'products:single_product' %}" class = "btn btn-primary" role = "button">
      View Product
   </a>

Answer 1

您没有在url中传递该标签，而是为您的模式提供了一个参数。

因此更改html

<a href ="{% url 'products:single_product' product.slug %}" class = "btn btn-primary" role = "button">
      View Product
   </a>