如何在 django 中对带有分页的单页博客使用基于类的视图

Question

this is the error messag am getting in a picture 有人应该帮我解决这个问题，我在过去 3 天里一直在解决这个问题， 我有一个由多个作者或管理员处理的博客，所以我决定使用基于类的视图，当我创建新帖子时出现错误说我需要 blog_detail.html，因为我没有详细的博客，所以我创建了一个 Detailview然后添加我的 template_name = 'mymainblogpage.html' 所以一旦我创建新帖子，它将被发布但不会显示帖子但只会显示分页，除了我无法按帖子 ID 搜索例如 http://127.0.0.1:8000/pages/blog/49/ 我什么都没有得到我的代码。

views.py

def blog(request):
    blog_post = Blog.objects.all()
    ordering = ['-timestamp']
    paginator = Paginator(blog_post, 2)
    page_request_var = 'page'
    page = request.GET.get(page_request_var)
    try:
        paginated_queryset = paginator.page(page)
    except PageNotAnInteger:
        paginated_queryset = paginator.page(2)
    except EmptyPage:
        paginated_queryset = paginator.page(paginator.num_pages) 
    context = {
        'queryset': paginated_queryset,
        'page_request_var': page_request_var

    }

    return render(request, 'pages/blog.html', context)


class BlogDetailView(DetailView):
    model = Blog
    template_name = 'pages/blog.html'
    context_object_name = 'blog'

urls.py

​​>

    path('blog/', BlogDetailView.as_view(), name='blog'),
    path('blog/<int:pk>/', BlogDetailView.as_view(), name='blog-detail'),

models.py

​​>

    def get_absolute_url(self):
        return reverse('blog-detail', kwargs={'pk': self.pk})

blog.html

     <br><p></p>
<section class="ftco-section bg-light" id="blog-section">
      <div class="container">
        <div class="row justify-content-center mb-5 pb-5">
          <div class="col-md-10 heading-section text-center ftco-animate">
            <h2 class="mb-4">Gets Every Single Updates Here</h2>
            <p>Far far away, behind the word mountains, far from the countries Vokalia and Consonantia</p>
          </div>
        </div>


      <div class="container">
         <div class="row justify-content-center mb-5 pb-5">
          <div class="col-lg-8 ftco-animate">
           {% for blog in queryset %}
            <h2 class="text-center">{{ blog.title }}</h2>
            <div class="meta mb-3 text-center">
           <div><h6><span><a href = "">written By {{ blog.user }}</span><small class="date"><i class="icon-clock"></i>  {{  blog.timestamp|timesince }} ago</small><a/></h6>

            </div>
            </div>
           <div><small class="icon-eye text-danger">{{ blog.view_count }}</small></div> 

          <div class="meta mb-3 text-center">

          <h5>{% for cat in blog.categories.all %}<span class="btn btn-dark">{{ cat }}</span> {% endfor %}</h5>

          </div>

           <p class="text-center">{{ blog.overview }}</p>
            {% endfor %}

            <nav aria-label="pagination">
                <ul class="pagination pagination-circle pg-blue">
                 {% if queryset.has_previous %}
                <li class="page-item"><a href= "?{{ page_request_var }}={{ queryset.previous_page_number }}"  class="page-link">Previous</a></li>
                 {% endif %}

                    <li class="page-item active"><a href= "?{{ page_request_var }}={{ queryset.number }}" class="page-link">{{ queryset.number }}</a></li>
                   </a>
                  </li>
               {% if queryset.has_next %}
              <li class="page-item"><a  href= "?{{ page_request_var }}={{ queryset.next_page_number }}" class="page-link">Next</a></li>
                {% endif %}
           </ul>
           </nav>
               {% if is_paginated %}
              <nav aria-label="pagination">
                <ul class="pagination pagination-circle pg-blue">
                 {% if queryset.has_previous %}
                <li class="page-item"><a href= "?{{ page_request_var }}={{ queryset.previous_page_number }}"  class="page-link">Previous</a></li>
                 {% endif %}

                    <li class="page-item active"><a href= "?{{ page_request_var }}={{ queryset.number }}" class="page-link">{{ queryset.number }}</a></li>
                   </a>
                  </li>
               {% if queryset.has_next %}
              <li class="page-item"><a  href= "?{{ page_request_var }}={{ queryset.next_page_number }}" class="page-link">Next</a></li>
                {% endif %}
           </ul>
           </nav>
           {% endif %}
            </div>
            </div>
        </div>
      </div>
    </section>

Answer 1

您没有显示分页，因为您传递的是上下文变量 'page_request_var': page_request_var 而不是 'page_request_var': page 所以改变它，因为page_request_var 只是一个字符串'page'。 如果你需要使用基于类的列表视图，那么

from django.views.generic import ListView

class PostListView(ListView):
  queryset = Post.published.all()
  context_object_name = 'posts' # by default class list view uses object_list.
  paginate_by = 2   # number of objects/posts per page 
  template_name = 'pages/blog.html' # by default uses <appname>/<modelname>_<view_type>.html

另外，我建议对列表和详细信息视图使用不同的模板，因为您只是在使用相同的模板搜索，所以我认为这可能是个问题。