獲取django下一篇文章和以前的帖子？

Question

我想將上一篇文章和下一篇文章功能添加到博客頁面，但它工作正常，但在將活動的被動功能添加到博客時不起作用。

這裏是我的view.py

model = Blog 
queryset = Blog.objects.filter(is_active__exact=True) 
template_name = 'site/Blog/post.html' 
pk_url_kwarg = "id" 
slug_url_kwarg = 'slug' 
slug_field = 'slug_tr' 
query_pk_and_slug = True 

def get_context_data(self, **kwargs): 
    context = super(BlogDetailView, self).get_context_data(**kwargs) 
    recent_posts = Blog.objects.all().order_by('-created_at')[:3] 
    comments = BlogComment.objects.filter(target_blog__exact=self.object) 
    previous_post = Blog.objects.filter(is_active=True).filter(created_at__lt=self.object.created_at).order_by('-created_at')[:1] 

    next_post_c = Blog.objects.filter(is_active=True).filter(created_at__gt=self.object.created_at).order_by('-created_at')[:1] 

我怎樣才能解決這個問題？

Answer 1

看看這個教程。 https://www.djangorocks.com/tutorials/how-to-create-a-basic-blog-in-django/defining-your-models.html

Answer 2

問題解決

previous_post = Blog.objects.filter(is_active=True, created_at__lt=self.object.created_at).order_by('-created_at').first() 

    next_post_c = Blog.objects.filter(is_active=True, created_at__gt=self.object.created_at).order_by('-created_at').first()