视图函数Django中的分页器

Question

我正在尝试在我的博客网站的帖子页面上添加分页选项。我想在呈现页面的视图函数上实现分页器，我从 Django 的文档中找到了这个示例，但它不起作用。有什么帮助吗？

查看功能：

def blog(request):
    posts = Post.objects.all().order_by('-date_posted')
    paginator = Paginator(posts, 2)
    page_number = request.GET.get('page')
    page_obj = paginator.get_page(page_number)

    context = {
        'posts': posts,
        'page_obj': page_obj,
        'title': 'Blog',
        'banner_page_title': 'Blog',
        'page_location': 'Home / Blog'
    }
    return render(request, 'blog/blog.html', context)

html渲染

<nav class="blog-pagination justify-content-center d-flex">
  <ul class="pagination">
      {% if is_paginated %}
        {% if page_obj.has_previous %}
          <li class="page-item">
              <a href="?page={{ page_obj.previous_page_number }}" class="page-link" aria-label="Previous">
                  <span aria-hidden="true">
                      <span class="ti-arrow-left"></span>
                  </span>
              </a>
          </li>
        {% endif %}

      {% for num in page_obj.paginator.page_range %}
        {% if page_obj.number == num %}
          <li class="page-item active">
              <a href="?page={{ num }}" class="page-link">{{ num }}</a>
          </li>
        {% elif num > page_obj.number|add:'-3' and num < page_obj.number|add:'3' %}
          <li class="page-item">
            <a href="?page={{ num }}" class="page-link">{{ num }}</a>
        </li>
        {% endif %}
      {% endfor %}

      {% if page_obj.has_next %}
        <li class="page-item">
            <a href="?page={{ page_obj.next_page_number }}" class="page-link" aria-label="Next">
                <span aria-hidden="true">
                    <span class="ti-arrow-right"></span>
                </span>
            </a>
        </li>
      {% endif %}
    {% endif %}
  </ul>
</nav>

url 路由

path('blog/', blog, name='blog'),

Answer 1

删除{% if is_paginated %}，因为它没有返回任何值，这就是你看不到任何数字的原因（如果{% endif %}，请不要忘记删除更接近的数字）

您可以从page_obj 访问您的分页对象

{% for post in page_obj %}
    {{ post }}
{% endfor %}

这是修改后的 HTML

{% for post in page_obj %}
    {{ post.text }}<br>
{% endfor %}


<nav class="blog-pagination justify-content-center d-flex">
    <ul class="pagination">
        {% if page_obj.has_previous %}
        <li class="page-item">
            <a href="?page={{ page_obj.previous_page_number }}" class="page-link" aria-label="Previous">
                <span aria-hidden="true">
                    <span class="ti-arrow-left"></span>
                </span>
            </a>
        </li>
        {% endif %}

    {% for num in page_obj.paginator.page_range %}
        {% if page_obj.number == num %}
        <li class="page-item active">
            <a href="?page={{ num }}" class="page-link">{{ num }}</a>
        </li>
        {% elif num > page_obj.number|add:'-3' and num < page_obj.number|add:'3' %}
        <li class="page-item">
            <a href="?page={{ num }}" class="page-link">{{ num }}</a>
        </li>
        {% endif %}
    {% endfor %}

    {% if page_obj.has_next %}
        <li class="page-item">
            <a href="?page={{ page_obj.next_page_number }}" class="page-link" aria-label="Next">
                <span aria-hidden="true">
                    <span class="ti-arrow-right"></span>
                </span>
            </a>
        </li>
    {% endif %}
    </ul>
  </nav>