Slug 没有在 Django 2.0 中呈现详细信息页面

Posted 2023-02-24

【中文标题】Slug 没有在 Django 2.0 中呈现详细信息页面

【英文标题】：Slug not rendering detail page in Django 2.0

【发布时间】：2019-08-14 13:03:04

【问题描述】：

在这种情况下使用 slug 并使其正常工作的最佳方法是什么。我可以在浏览器上看到 URL 显示请求的项目，但我无法呈现详细页面。我找不到问题出在哪里。当我访问“page_detail”时，url 是“http://127.0.0.1:8000/posts/2019/03/23/greetings/”，根据我的输入这是正确的，但是 django 会抛出错误来呈现页面。错误是：TypeError: post_detail() got an unexpected keyword argument 'slug'

型号：

class Post(models.Model):
       STATUS_CHOICES = (
           ('draft', 'Draft'),
           ('published', 'Published'),
       )
       title = models.CharField(max_length=250)
       slug = models.SlugField(max_length=250,
                               unique_for_date='publish')
       author = models.ForeignKey(User, on_delete = models.CASCADE, related_name='blog_posts')
       body = models.TextField()
       publish = models.DateTimeField(default=timezone.now)
       created = models.DateTimeField(auto_now_add=True)
       updated = models.DateTimeField(auto_now=True)
       status = models.CharField(max_length=10,
                                 choices=STATUS_CHOICES,
                                 default='draft')

       published = PublishedManager()   # Custom Model Manager

       def get_absolute_url(self):
        ''' Canonical URL for post detail.'''
        return reverse('snippets:post-detail',
                        args=[self.publish.year,
                                self.publish.strftime('%m'),
                                self.publish.strftime('%d'),
                                self.slug])

       class Meta:
           ordering = ('-publish',)

def __str__(self):
    return self.title

网址

app_name = 'snippets'
urlpatterns = [ 
    path('posts/', views.post_list, name='post-list'),
    path('posts/<int:year>/<int:month>/<int:day>/<slug:slug>/', views.post_detail, name='post-detail'),
]

观看次数

def post_list(request):
    posts = Post.published.all()
    context = 'posts': posts
    return render(request, 'snippets/list.html', context)

def post_detail(request, year, month, day, post):
    post = get_object_or_404(Post, slug=post, 
                                status='published',
                                publish__year=year,
                                publish__month=month,
                                publish__day=day)
    return render(request, 'snippets/detail.html', 'post':post)

post_list HTML

% extends "base.html" %
   % block title %My Blog% endblock %
   % block content %
     <h1>Blog</h1>
     % for post in posts %
       <h2>
         <a href=" post.get_absolute_url ">
            post.title 
         </a>
       </h2>
       <p class="date">
         Published  post.publish  by  post.author 
       </p>
        post.body|truncatewords:30|linebreaks 
   % endfor %
   % endblock %

post_detail HTML

% extends "base.html" %
   % block title % post.title % endblock %
   % block content %
     <h1> post.title </h1>
     <p class="date">
       Published  post.publish  by  post.author 
     </p>
      post.body|linebreaks 
   % endblock %

我还是卡住了。任何帮助将不胜感激。

【参考方案1】：

尝试将您的views.py更改为

def post_detail(request, year, month, day, slug):
post = get_object_or_404(Post, slug=slug, 
                            status='published',
                            publish__year=year,
                            publish__month=month,
                            publish__day=day)
return render(request, 'snippets/detail.html', 'post':post)