Question

我写简单的Django-blog， django.VERSION - （2,0,1，'final'，0）
但我收到错误，不明白如何解决它。

NoReverseMatch at /posts/
Reverse for 'detail' with keyword arguments '{'id': 16}' not found. 1 
pattern(s) tried: ['posts\\/(?P<id>\\d)/$']

并且

Error during template rendering
In template 

djangoblog/posts/templates/posts/base.html, error at line 0

Reverse for 'detail' with keyword arguments '{'id': 16}' not found. 1 
pattern(s) tried: ['posts\\/(?P<id>\\d)/$']
1   {% load staticfiles %}
2   <!DOCTYPE html>
3   <html lang="en">
4   <head>
5       <meta charset="UTF-8">
6       <title>{% block head_title %}
7           Django-blog! {% endblock head_title %}</title>
8       <link rel="stylesheet"
9

models.py

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

class Post(models.Model):
    title = models.CharField(max_length=200)
    image = models.FileField(null=True, blank=True)
    content = models.TextField()
    updated = models.DateTimeField(auto_now=True, auto_now_add=False)
    timestamp = models.DateTimeField(auto_now=False, 
auto_now_add=True)

    def __str__(self):
        return self.title

    def get_absolute_url(self):
        return reverse("posts:detail", kwargs={"id": self.id})

    class Meta:
        ordering = ['-timestamp', '-updated']

我在views.py中的def看起来像

def post_list(request):
    queryset_list = Post.objects.all()
    paginator = Paginator(queryset_list, 5)

    page = request.GET.get('page')
    queryset = paginator.get_page(page)
    context = {
        'object_list': queryset,
        'title': 'List'
    }
    return render(request, 'posts/post_list.html', context)

urls.py urlpatterns中的

看起来像

urlpatterns = [
    re_path('^$', post_list, name='list'),
    re_path('^create/$', post_create),
    re_path(r'^(?P<id>\d)/$', post_detail, name='detail'),
    re_path(r'^(?P<id>\d)/edit/$', post_update, name='update'),
    re_path(r'^(?P<id>\d)/delete/$', post_delete),
]

非常感谢你。如果您需要其他信息 - 请告诉我。

Answer 1

Django正在寻找一个你尚未创建的名为'detail'的网址，因此会抛出错误。

您需要创建一个类似post_detail的视图，并将其包含在名称为detail的网址中，例如

re_path('posts/(?P<id>\d+)/$', post_detail, name='detail')

NoReverseMatch at / posts / Django项目中的错误

1 个答案: