Django中的分页

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直接看代码吧,还算比较简单:

先确认数据量有多少
根据页面显示数据的多少来分割数据,得到页面的开始数据和结束数据
根据开始和截止数据去切片数据,并且得到总共的页码数
根据一页显示多少页码和当前页码数,得到开始和截止的页码
配置首页码、上一页、页码内容、下一页、末页
内容为字符串拼凑的HTML标签,并拼接到一起
导入mark_safe模块,将字符串转化为页码对象

HTML页面内容:

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>page_test</title>

    <style>

        .selected{

            background-color: lightblue;

        }

    </style>

</head>

<body>

    <table>

        <thead>

            <tr>

                <th>id</th>

                <th>名称</th>

            </tr>

        </thead>

        <tbody>

            {% for item in data %}

                <tr>

                    <td>{{ item.id }}</td>

                    <td>{{ item.name }}</td>

                </tr>

            {% endfor %}

        </tbody>

    </table>

    <div>

            {{ str_page }}

    </div>

</body>

</html>

views.py内容:



def page(request):

    # for i in range(200):

    #     name = 'cc'+str(i)

    #     models.Girl.objects.create(name=name)

    current_page = request.GET.get('p', 1)

    current_page = int(current_page)

    start = (current_page - 1) * 10

    end = current_page * 10

    data = models.Girl.objects.all()[start:end]

    total_item = models.Girl.objects.all().count()

    a, b = divmod(total_item, 10)

    if b == 0:

        pass

    else:

        a += 1

    str_page = CustomPage('?p=',current_page,a)

    return render(request, 'page.html', {'data': data, 'str_page': str_page})

def CustomPage(baseurl,current_page,total_page):

    #每页显示11页码

    #perPage = 11

    begin = 0

    end = 0

    if total_page <= 11:

        begin = 0

        end = total_page

    else:

        if current_page > 5:

            begin = current_page - 5

            end = current_page + 5

            if end > total_page:

                end = total_page

        else:

            begin = 0

            end = 11

    page_list = []

    #编辑首页项

    if current_page <= 1:

        first = "<a href='#'>首页</a>"

    else:

        first = "<a href='%s%d'>首页</a>"%(baseurl,1)

    page_list.append(first)

    #编辑上一页选项

    if current_page <= 1:

        prev = "<a href='#'>上一页</a>"

    else:

        prev = "<a href='%s%d'>上一页</a>"%(baseurl,current_page-1)

    page_list.append(prev)

    #编辑中间页面项

    for i in range(begin+1,end+1):

        if i == current_page:

            temp = "<a href='%s%d' class='selected'>%d</a>"%(baseurl,i,i)

        else:

            temp = "<a href='%s%d'>%d</a>"%(baseurl,i,i)

        page_list.append(temp)

    #编辑下一页选项

    if current_page >= total_page:

        nex = "<a href='#'>下一页</a>"

    else:

        nex = "<a href='%s%d'>下一页</a>"%(baseurl,current_page+1)

    page_list.append(nex)

    #编辑末页选项

    if current_page >= total_page:

        last = "<a href='#'>末页</a>"

    else:

        last = "<a href='%s%d'>末页</a>"%(baseurl,total_page)

    page_list.append(last)

    #拼接字符串

    result = ' '.join(page_list)

    #转换为HTML

    from django.utils.safestring import mark_safe

    return mark_safe(result)