Question

我遇到了网址问题。我想这是因为我的blog.urls＆＃39;或者href是我的＆＃39; models.py＆＃39;。但我不知道如何改变它。我是程序员初学者。很抱歉这个问题太简单了。

问题是：

Page not found (404)
Request Method: GET
Request URL:    http://127.0.0.1:8000/blog/posts.category.get_absolute_url
Using the URLconf defined in djangotest.urls, Django tried these URL patterns, in this order:
admin/
blog/ [name='list_of_post']
blog/ <slug:slug>/ [name='post_detail']
blog/ category/<slug:slug>/ [name='list_of_post_by_category']
The current path, blog/posts.category.get_absolute_url, didn't match any of these.

博客/网址：

    from django.conf.urls import url
    from django.urls import path
    from . import views

    app_name = 'blog'
    urlpatterns =[
        path('',views.list_of_post,name='list_of_post'),
        path('<slug:slug>/',views.post_detail,name='post_detail'),
        path('category/<slug:slug>/',views.list_of_post_by_category,name='list_of_post_by_category')

]

list_of_post.html：

{% extends 'blog/post/base.html' %}

{% block title %}List of blog post{% endblock %}

{% block content %}
     {% for posts in post %}
         <h2><a href="{{posts.get_absolute_url}}">{{ posts.title }}</a></h2>
         <p>Written by {{ posts.author }} on {{ posts.published}} in <a href="posts.category.get_absolute_url">{{posts.category}}</a></p>
         <hr>
         {{ posts.content | truncatewords:40 | linebreaks}}
     {% endfor %}
{% endblock %}

model.py：

class Category(models.Model):
    name = models.CharField(max_length = 250)
    slug = models.SlugField(max_length=250,unique=True)

    class Meta:
        ordering = ['name']
        verbose_name = 'category'
        verbose_name_plural = 'categories'

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

    def __str__(self):
        return self.name

Answer 1

由于posts.category.get_absolute_url是一个变量，因此必须将其括在花括号内：

<a href="{{posts.category.get_absolute_url}}">{{posts.category}}</a>

此外，{% for posts in post %}看起来很奇怪。您是否从视图中传递了post的帖子列表？我建议将其posts，条件将更改为{% for post in posts %}

blog / posts.category.get_absolute_url，没有匹配其中任何一个

1 个答案: