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Django 中的自定义分页标签

2017-08-11 16:48 423 查看

目录结构：

1.在应用下，migrations的同级目录创建templatetags目录（主要两个文件，包含__init__.py）

2.创建分页标签（pagetag.py）

1 #!/usr/bin/env python
2 # _*_ coding:utf-8 _*_
3
4 from django import template
5 from django.utils.html import format_html
6
7 # 注册标签
8 register = template.Library()
9 @register.simple_tag
10 def circle_page(curr_page,loop_page):
11     offset = abs(curr_page - loop_page)
12     if offset < 3:
13         if curr_page == loop_page:
14             page_ele = '<li class="active"><a href="?page=%s">%s</a></li>'%(loop_page,loop_page)
15         else:
16             page_ele = '<li><a href="?page=%s">%s</a></li>'%(loop_page,loop_page)
17         return format_html(page_ele)
18     else:
19         return ''

3.在view.py中将数据分页处理

1 # 数据分析
2 def analysisMovie(request):
3     movies = AnalysisMovie.objects.all().filter(is_delete='0')
4     # 分页
5     paginator = Paginator(movies, 25, 2)  # Show 25 contacts per page
6     page = request.GET.get('page')
7     try:
8         contacts = paginator.page(page)
9     except PageNotAnInteger:
10         # If page is not an integer, deliver first page.
11         contacts = paginator.page(1)
12     except EmptyPage:
13         # If page is out of range (e.g. 9999), deliver last page of results.
14         contacts = paginator.page(paginator.num_pages)
15     context =  {'contacts': contacts}
16     return render(request,'analysis.html',context=context)

4.在url.py中设置指向

url(r'^analysis/$', views.analysisMovie),

5.在analysis.html中数据展示（部分）

1 {% load pagetag %}
2 <!DOCTYPE html>
3 <html lang="en">
4 <head>
5     <meta charset="UTF-8">
6     <title>数据分析</title>
7     <!-- 全局样式 -->
8     <link rel="stylesheet" href="/static/css/global.css">
9     <!-- 导航菜单样式 -->
10     <link rel="stylesheet" href="/static/navigation.css">
11     <!-- 数据展现表格样式 -->
12     <link rel="stylesheet" href="/static/table.css">
13     <!-- bootstrap样式 -->
14     <link rel="stylesheet" href="/static/bootstrap-3.3.7-dist/css/bootstrap.css">
15     <link rel="stylesheet" href="/static/bootstrap-3.3.7-dist/css/bootstrap-theme.min.css">
16     <script type="text/javascript" src="/static/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script>
17
18 </head>
19 <body>
20
21                     <div class="panel-body">
22                         <form>
23                             <div class="input-group col-md-3" style="margin-top:0px;positon:relative">
24                                 <input type="text" class="form-control" placeholder="请输入明星"/>
25                                 <span class="input-group-btn">
26                                    <button class="btn btn-info btn-search">查找</button>
27                                    <button class="btn btn-info btn-search" style="margin-left:3px">添加</button>
28                                 </span>
29                             </div>
30                             <table id="hor-minimalist-a" align="center">
31                                 <tr>
32                                     <th>演员</th>
33                                     <th>电影名称</th>
34                                     <th>评分</th>
35                                     <th>类型</th>
36                                     <th>评论数</th>
37                                 </tr>
38                                 {% for movie in contacts %}
39                                     <tr>
40                                          <td>
41                                             {{ movie.actor_name }}
42                                         </td>
43                                         <td>
44                                             {{ movie.movie_name }}
45                                         </td>
46                                         <td>
47                                             {% if movie.movie_mark == 0  %}
48                                                 暂无评分
49                                             {% else %}
50                                                 {{ movie.movie_mark }}分
51                                             {% endif %}
52                                         </td>
53                                         <td>
54                                             {{ movie.movie_type }}
55                                         </td>
56                                         <td>
57                                             {% if movie.movie_rating_num == '' %}
58                                                 暂无评论
59                                             {% else %}
60                                                 {{ movie.movie_rating_num }}
61                                             {% endif %}
62                                         </td>
63
64                                     </tr>
65                                 {% endfor %}
66
67                             </table>
68                             <!-- 分页 -->
69                             <nav aria-label="Page navigation">
70                                 <ul class="pagination">
71                                     {% if contacts.has_previous %}
72                                         <li>
73                                           <a href="?page={{ contacts.previous_page_number }}" aria-label="Previous">
74                                             <span aria-hidden="true">上一页</span>
75                                           </a>
76                                           <a href="?page=1" aria-label="First">
77                                             <span aria-hidden="true">首页</span>
78                                           </a>
79                                       </li>
80                                     {% endif %}
81                                     {%  for pg in contacts.paginator.page_range %}
82                                         {% circle_page contacts.number pg %}
83                                     {% endfor %}
84
85                                     {% if contacts.has_next %}
86                                         <li>
87                                             <a href="?page={{ contacts.paginator.num_pages }}" aria-label="Last">
88                                             <span aria-hidden="true">尾页</span>
89                                             </a>
90                                             <a href="?page={{ contacts.next_page_number }}" aria-label="Next">
91                                             <span aria-hidden="true">下一页</span>
92                                              </a>
93                                     {% endif %}
94                                         </li>
95                                 </ul>
96                             </nav>
97                         </form>
98                     </div>
99

6.效果

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