Django中的分页

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)

posted @ 2016-09-20 18:38 ccorz 阅读(278) 评论(0) 编辑收藏举报

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Django中的分页

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