Question

// MARK: Special protocol to localizaze UI's placeholder
public protocol UIPlaceholderXIBLocalizable {
    var localePlaceholderKey: String? { get set }
}

extension UITextField: UIPlaceholderXIBLocalizable {

    @IBInspectable public var localePlaceholderKey: String? {
        get { return nil }
        set(key) {
            placeholder = key?.localized
        }
    }

}

extension UISearchBar: UIPlaceholderXIBLocalizable {

    @IBInspectable public var localePlaceholderKey: String? {
        get { return nil }
        set(key) {
            placeholder = key?.localized
        }
    }

}

我是Django的新手，正在使用2.1版当我浏览NoReverseMatch at/myapp/products/ Reverse for 'product_detail' not found. 'product_detail' is not a valid view function or pattern name. Error during template rendering In template C:\Users\User\job\mysite\myvenv\myproject\myapp\templates\base_generic.html, error at line 8 <meta name="viewport" content="width=device-width, initial-scale=1,shrink-to-fit="no">时，我在单击“产品”而不是获取产品名称时出现上述错误。

在http://127.0.0.1:8000/

base_generic.html

在myapp urls.py，

<meta name="viewport" content="width=device-width, initial-scale=1,shrink-to-fit="no">

<li><a href="{% url 'myapp:products'%}">Products</a></li>

At product_list.html,

{% extends "base_generic.html" %}

{% if product_list %}

{% for product in product_list %}

<a href="{{product.get_absolute_url}}">{{product.name}}</a>

{% endfor %}

{% else %}

No product 

{% endif %}

{% endblock %}

在from django. urls import path from myapp import views app_name = 'myapp' urlpatterns = [ path('products/', views. ProductListView.as_view(), name='products'), path('product/<int:pk>/', views.ProductDetailView.as_view(), name='product-detail'), ]，

models.py

在views.py，

from django.db import models
from django.urls import reverse 

class Product(models.Model):
        name = models.CharField(max_length=100)
        description = models.TextField(max_length=200, help_text="Enter a brief description of the product.")

        def __str__(self):
               return self.name

        def get_absolute_url(self):
               return reverse('myapp/product_detail', args=[str(self.id)])

我应该怎么做才能在单击“产品”时获得产品名称，然后从那里（也单击产品名称）获得产品详细信息？

Answer 1

在reverse函数中，您需要传递app_name:name而不是app_name/name。

在您的情况下：

    def get_absolute_url(self):
           return reverse('myapp:product_detail', args=[str(self.id)])

有关完整说明，请参见docs。

NoReverseMatch位于/ myapp / products /

1 个答案: