Django分页功能改造，一比一还原百度搜索的分页效果

# apps/blog/templatetags/blog_tags.py
from django import template
register = template.Library()
@register.inclusion_tag('blog/tags/pagecut.html', takes_context=True)

def load_pages(context, max_length=10):

"""

自定义分页

@param context: 上下文对象

@param max_length: 最多显示的页面按钮数量

@return:

"""

paginator = context['paginator']

page_obj = context['page_obj']

# 分页总数不大于最大显示数，则直接显示所有页码

if paginator.num_pages <= max_length:

page_range = range(1, paginator.num_pages + 1)

# 总页码大于总显示的时候，保证当前页码在中间

else:

left_num = max(page_obj.number - int(max_length / 2), 1)

right_num = min(left_num + max_length - 1, paginator.num_pages)

# 当前页面接近末尾的时候，也要保证能显示max_length个数

if right_num - left_num < max_length - 1:

left_num = right_num - max_length + 1

page_range = range(left_num, right_num + 1)

context['page_range'] = page_range

return context

{% load blog_tags %}

<div class="page-inner text-center">

{% if page_obj.has_previous %}

{% deal_with_full_path request.get_full_path 'page' page_obj.previous_page_number as new_pre_page_path %}

<a href="{{ new_pre_page_path }}"><span class="n">上一页</span></a>

{% endif %}

{% for page in page_range %}

{% if page_obj.number == page %}

<span class="page-active">{{ page }}</span>

{% else %}

{% deal_with_full_path request.get_full_path 'page' page as page_path %}

<a href="{{ page_path }}"><span>{{ page }}</span></a>

{% endif %}

{% endfor %}

{% if page_obj.has_next %}

{% deal_with_full_path request.get_full_path 'page' page_obj.next_page_number as new_next_page_path %}

<a href="{{ new_next_page_path }}"><span class="n">下一页</span></a>

{% endif %}

</div>

from urllib.parse import urlparse, parse_qs, urlencode, urlunparse

from django import template

register = template.Library()
@register.simple_tag

def deal_with_full_path(full_path, key, value):

"""

处理当前路径，包含参数的

@param value: 参数值

@param key: 要修改的参数，也可以新增

@param full_path: /search/?q=python&page=2

@return: 得到新的路径

"""

parsed_url = urlparse(full_path)

query_params = parse_qs(parsed_url.query)

# 去除参数key

query_params[key] = value

# 重新生成URL

updated_query_string = urlencode(query_params, doseq=True)

updated_url = urlunparse(parsed_url._replace(query=updated_query_string))

return updated_url

{% if is_paginated %}

<div class="d-none d-md-block">{% load_pages 10 %}</div>

<div class="d-md-none">{% load_pages 4 %}</div>

{% endif %}