django【原生分页】

 1 1.urls.py
 2 url(r'^page2/',views.page2),
 3 2.views.py
 4 from django.core.paginator import Paginator,PageNotAnInteger,EmptyPage
 5 def page2(request):
 6     customer_list=models.UserType.objects.all()
 7     paginator=Paginator(customer_list,10)
 8     page = request.GET.get('p')
 9     try:
10         customer_objs=paginator.page(page)
11     except PageNotAnInteger:
12         customer_objs=paginator.page(1)
13     except EmptyPage:
14         customer_objs=paginator.page(paginator.num_pages)
15     return render(request,'page2.html',{'customer_list':customer_objs})
16 3.page2.html
17 {% load custom_tags %}
18    <style>
19         .active{
20             background: gold;
21         }
22     </style>
23  <table>
24     <thead>
25     <tr>
26         <th>ID</th>
27         <th>name</th>
28     </tr>
29     </thead>
30     <tbody>
31     {% for item in customer_list %}
32         <tr>
33             <td>{{ item.id }}</td>
34             <td>{{ item.caption }}</td>
35         </tr>
36     {% endfor %}
37     </tbody>
38     </table>
39 <br>
40     <div class="pagination">
41     <nav>
42                 {% if  customer_list.has_previous %}
43                     <span class="#"><a href="?p={{ customer_list.previous_page_number }}" aria-label="Previous"><span aria-hidden="true">«</span></a></span>
44                 {% endif %}
45                 {% for page_num in customer_list.paginator.page_range  %}
46                     {% guess_page customer_list.number page_num %}
47                 {% endfor %}
48                 {% if customer_list.has_next %}
49                     <span class="#"><a href="?p={{ customer_list.next_page_number }}" aria-label="Next"><span aria-hidden="true">»</span></a></span>
50                 {% endif %}
51     </nav>
52     </div>
53 4.自定义模板函数
54    app01/templatetags/custom_tags.py
55 from django import template
56 from django.utils.html import format_html
57 register=template.Library()
58 @register.filter
59 def _lower(val):
60     print('-----val',val)
61     return val.lower()
62 @register.simple_tag
63 def guess_page(current_page,loop_num):
64         offset=abs(current_page-loop_num)
65         if offset < 3:
66             if current_page == loop_num:
67                 page_ele='<span class="active"><a href="?p=%s">%s</a></span>'%(loop_num,loop_num)
68             else:
69                 page_ele='<span class=""><a href="?p=%s">%s</a></span>'%(loop_num,loop_num)
70             return format_html(page_ele)
71         else:
72             return ""