Django分页实现（Bootstrap)
请自行在HTML中导入Bootstrap
page.py 分页组件
# -*- coding: utf-8 -*-
# @Time :2020/5/27 21:33
# @Author :12257
# @SoftWare :PyCharm
from django.conf import settings
from django.utils.safestring import mark_safe # marksafe用来返回安全字符串HTML标签 防止转义
class MyPagenation():
def __init__(self, page, total_count, per_page_num, page_num_show, base_url, get_data=None):
self.base_url = base_url
self.get_data = get_data
per_page_num = settings.PER_PAGE_NUM # 每页显示多少数据
page_num_show = settings.PAGE_NUM_SHOW # 显示的页码数
customer_count = total_count
div, mod = divmod(customer_count, per_page_num)
if mod:
page_num_count = div + 1
else:
page_num_count = div
try:
self.page = int(page)
except Exception as e:
self.page = 1
if self.page <= 0:
self.page = 1
elif self.page > page_num_count:
self.page = page_num_count
self.page_num_count = page_num_count
start_num = (self.page - 1) * per_page_num
end_num = self.page * per_page_num
page_num_half_show = page_num_show // 2
page_num_start_show = self.page - page_num_half_show
page_num_end_show = self.page + page_num_half_show + 1
if page_num_start_show <= 0: # 异常分页判断
page_num_start_show = 1
page_num_end_show = page_num_show + 1
elif page_num_end_show > page_num_count:
page_num_start_show = page_num_count - page_num_show + 1
page_num_end_show = page_num_count + 1
if page_num_count < page_num_end_show:
page_num_end_show = page_num_count + 1
self.start_num = start_num
self.end_num = end_num
self.page_num_start_show = page_num_start_show
self.page_num_end_show = page_num_end_show
@property
def start_num_show(self):
return self.start_num
@property
def end_num_show(self):
return self.end_num
def page_html(self):
page_num_range = range(self.page_num_start_show, self.page_num_end_show)
page_html = ''
first_page_html = f'<nav aria-label="Page navigation"><ul class="pagination"><li><a href="/{self.base_url}/1?{self.get_data}" aria-label="Previous"><span '
'aria-hidden="true">首页</span></a></li>'
page_html += first_page_html
page_pre = ''
page_html += page_pre
if self.page <= 1:
pre_page = f'<li class="disabled"><a href="javascript:void(0)" aria-label="Previous"><span '
'aria-hidden="true">«</span></a></li>'
else:
pre_page = f'<li><a href="/{self.base_url}/{self.page - 1}?{self.get_data}" aria-label="Previous"><span '
'aria-hidden="true">«</span></a></li>'
page_html += pre_page
for i in page_num_range:
if i == self.page:
page_html += f'<li class="active"><a href="/{self.base_url}/{i}?{self.get_data}">{i}</a></li>'
else:
page_html += f'<li><a href="/{self.base_url}/{i}?{self.get_data}">{i}</a></li>'
if self.page >= self.page_num_count:
page_next_html = f'<li class="disabled"><a href="javascript:void(0)" aria-label="Next"><span aria-hidden="true">»</span></a></li> '
else:
page_next_html = f'<li><a href="/{self.base_url}/{self.page + 1}?{self.get_data}" aria-label="Next"><span aria-hidden="true">»</span></a></li>'
page_html += page_next_html
last_page_html = f'<li><a href="/{self.base_url}/{self.page_num_count}?{self.get_data}" aria-label="Previous"><span '
'aria-hidden="true">尾页</span></a></li></ul></nav>'
page_html += last_page_html
return mark_safe(page_html)
settings.py 组件设置
PER_PAGE_NUM = 10
PAGE_NUM_SHOW = 5
view.py 使用分页实例
def customers(request, page=1):
"""
客户信息查看
:param request:
:param page: 页码
:return:
"""
kw = request.GET.get('keyword') # 查询关键字
sf = request.GET.get('search_field') # 选择查询的字段
get_data = request.GET.urlencode()
# print('get_data=', get_data)
if sf:
sf = sf + '__contains'
if kw:
customer_list = models.Customer.objects.filter(**{sf: kw})
else:
customer_list = models.Customer.objects.all()
customer_count = customer_list.count()
per_page_num = 10
per_num_show = 5
base_url = 'customers'
mypage = MyPagenation(page, customer_count, per_page_num, per_num_show, base_url,get_data=get_data)
page_html = mypage.page_html()
customer_objs = customer_list.reverse()[mypage.start_num_show:mypage.end_num_show]
context = {
'customer_objs': customer_objs,
'page_html': page_html,
# 'keyword': kw,
}
return render(request, 'salehtml/customers.html', context)