28Django分页-CFANZ编程社区

28Django分页

1视图：

all_data = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n']
def test_page(request):
    paginator = Paginator(all_data,1) #实例化分页类
    page_num = request.GET.get('page',1) #获取当前页码
    pagedata = paginator.page(page_num) #获取当前页码的数据
    pagecount = paginator.num_pages #获取总页数
    pagerange = paginator.page_range #获取页码范围
    #对页码进行判断
    if int(page_num) <1:
        page_num = 1
    if int(page_num) > pagecount:
        page_num = pagecount
    #返回页码循环数，在模板里遍历
    if int(page_num) <= 5:
        page_list = pagerange[:10]
    elif int(page_num) + 5 > pagecount:
        page_list = pagerange[-10:]
    else:
        page_list = pagerange[int(page_num)-5:int(page_num)+4]
    return render(request,'test_page.html',locals())

2模板：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>分页</title>
</head>
<body>
{% for p in pagedata %}
    <p>
    {{ p }}
    </p>
{% endfor %}

{% if pagedata.has_previous %}
    <a href="/test_page?page={{ pagedata.previous_page_number }}">上一页</a>
{% else %}
    上一页
{% endif %}

<!--当前页显示页码，非当前页显示a标签-->
{% for p_num in page_list %}
    {% if p_num == c_page.number %}
        {{ p_num }}
    {% else %}
        <a href="/test_page?page={{ p_num }}">{{ p_num }}</a>
    {% endif %}
{% endfor %}


{% if pagedata.has_next %}
    <a href="/test_page?page={{ pagedata.next_page_number }}">下一页</a>
{% else %}
    下一页
{% endif %}
</body>
</html>

3路由：

urlpatterns = [
    path('test_page',views.test_page),
]

4浏览：

http://127.0.0.1:8000/test_page?page=7

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