Django手写分页

Posted 2020-12-18 zchzy

def get(self, request, *args, **kwargs):
    # 获取当前页码
    pg = int(request.GET.get(‘page‘, 1))
    obj = Student.objects.all().order_by("id")
    # 创建分页器对象
    page_obj = Paginator(obj, 3)
    try:
        # 获取当前页码数得数据  pg =1
        page_data = page_obj.page(pg)
    except PageNotAnInteger:
        # 第一页
        page_data = page_obj.page(1)
    except EmptyPage:
        # 最后一页
        page_data = page_obj.page(page_obj.num_pages)

    # 每页开始页码
    begin = (pg - int(math.ceil(10.0 / 2)))
    if begin < 1:
        begin = 1
    # 每页结束页码
    end = begin + 9
    # page_obj.num_pages 获取所有页码
    print(page_obj.num_pages)
    if end > page_obj.num_pages:
        end = page_obj.num_pages

    if end <= 10:
        begin = 1
    else:
        begin = end - 9

    pagelist = range(begin, end + 1)

    return render(request, ‘index.html‘,
                  {‘page_obj‘: page_obj, ‘page_data‘: page_data, ‘pagelist‘: pagelist, ‘bigpage‘: pg}, )


前端代码

<div>
    {% if page_data.has_previous %}
        <a href="{% url ‘index‘ %}?page={{ page_data.previous_page_number }}">上一页</a>
    {% endif %}
    {#显示所有页码#}
    {#    {% for n in page_obj.page_range %}#}
    {#        {% if n < 6 %}#}
    {#            <a href="{% url ‘index‘ %}?page={{ n }}">{{ n }}</a>&emsp;#}
    {#        {% endif %}#}
    {#    {% endfor %}#}
    {% for n in pagelist %}
        {% if bigpage == n %}
            <a href="{% url ‘index‘ %}?page={{ n }} " style="font-size: 25px; color: firebrick">{{ n }}</a>
        {% else %}
            <a href="{% url ‘index‘ %}?page={{ n }}">{{ n }}</a>
        {% endif %}
    {% endfor %}

    {% if page_data.has_next %}
        <a href="{% url ‘index‘ %}?page={{ page_data.next_page_number }}">下一页</a>
    {% endif %}
</div>