--自定义分页组件
一，自己原创
class PageInfo(object):
def __init__(self,current_page,all_count,per_page,base_url,show_page=11):
## 当前页码，总共多少条数，每页显示多少条数
#all_page 总共页码
try:
self.current_page = int(current_page)
except Exception as e:
self.current_page =1
self.per_page = per_page
print(all_count)
a,b = divmod(all_count,per_page)
if b:
a = a + 1
self.all_page = a
self.show_page =show_page
self.base_url = base_url
def start(self):
return (self.current_page-1) * self.per_page
def end(self):
return self.current_page * self.per_page
def page(self):
# v = "<a href='/app01/custom/?page=1'>1</a>"
# return v
page_list = []
haft = int((self.show_page - 1)/2)
print(haft)
if self.current_page > self.all_page:
begin = 1
stop = 2+haft
elif self.current_page > self.all_page-haft:
begin = self.current_page - haft
stop = self.all_page + 1
elif self.current_page >= haft+1:
begin = self.current_page - haft
stop = self.current_page + haft + 1
else :
begin = 1
stop = self.current_page + haft + 1
# if self.current_page < haft+1:
# begin =1
# else:
# begin = self.current_page-haft
# if self.current_page > self.all_page-haft:
# stop = self.all_page+1
#
# else:
# stop = self.current_page+haft+1
if self.current_page <=1:
prev = "<a style='display:inline-block;padding:5px;margin:5px' href='#'>上一页</a>"
else:
prev = "<a style='display:inline-block;padding:5px;margin:5px' href='%s?page=%s'>上一页</a>" % (self.base_url,self.current_page-1,)
page_list.append(prev)
if self.current_page >=self.all_page:
after = "<a style='display:inline-block;padding:5px;margin:5px' href='#'>下一页</a>"
else:
after = "<a style='display:inline-block;padding:5px;margin:5px' href='%s?page=%s'>下一页</a>" % (self.base_url, self.current_page +1,)
for i in range(begin,stop):
if i == self.current_page:
temp="<a style='display:inline-block;padding:5px;margin:5px;background-color:red' href='%s?page=%s'>%s</a>" %(self.base_url,i,i,)
else:
temp = "<a style='display:inline-block;padding:5px;margin:5px' href='%s?page=%s'>%s</a>" % (self.base_url,i, i,)
page_list.append(temp)
page_list.append(after)
return ''.join(page_list)
def custom(request):
#表示用户当前想要访问的页码：8
all_count = models.UserInfo.objects.all().count()
page_info = PageInfo(request.GET.get('page'),all_count,20,'/app01/custom/')
user_list = models.UserInfo.objects.all()[page_info.start():page_info.end()]
return render(request,'custom.html',{'user_list':user_list,'page_info':page_info})
#######################################################################################
<body>
<ul>
{% for row in user_list %}
<li> {{ row.nid }} ====== {{ row.username }} </li>
{% endfor %}
</ul>
{{ page_info.page|safe }}
</body>
############################################################################
二，引用bootstarp组件
class PageInfo(object):
def __init__(self,current_page,all_count,per_page,base_url,show_page=11):
## 当前页码，总共多少条数，每页显示多少条数
#all_page 总共页码
try:
self.current_page = int(current_page)
except Exception as e:
self.current_page =1
self.per_page = per_page
print(all_count)
a,b = divmod(all_count,per_page)
if b:
a = a + 1
self.all_page = a
self.show_page =show_page
self.base_url = base_url
def start(self):
return (self.current_page-1) * self.per_page
def end(self):
return self.current_page * self.per_page
def page(self):
# v = "<a href='/app01/custom/?page=1'>1</a>"
# return v
page_list = []
haft = int((self.show_page - 1)/2)
print(haft)
if self.current_page > self.all_page:
begin = 1
stop = 2+haft
elif self.current_page > self.all_page-haft:
begin = self.current_page - haft
stop = self.all_page + 1
elif self.current_page >= haft+1:
begin = self.current_page - haft
stop = self.current_page + haft + 1
else :
begin = 1
stop = self.current_page + haft + 1
# if self.current_page < haft+1:
# begin =1
# else:
# begin = self.current_page-haft
# if self.current_page > self.all_page-haft:
# stop = self.all_page+1
#
# else:
# stop = self.current_page+haft+1
if self.current_page <=1:
prev = "<li><a ' href='#'>上一页</a></li>"
else:
prev = "<li><a href='%s?page=%s'>上一页</a></li>" % (self.base_url,self.current_page-1,)
page_list.append(prev)
if self.current_page >=self.all_page:
after = "<li><a href='#'>下一页</a></li>"
else:
after = "<li><a href='%s?page=%s'>下一页</a></li>" % (self.base_url, self.current_page +1,)
for i in range(begin,stop):
if i == self.current_page:
temp="<li class='active' ><a href='%s?page=%s'>%s</a></li>" %(self.base_url,i,i,)
else:
temp = "<li><a href='%s?page=%s'>%s</a></li>" % (self.base_url,i, i,)
page_list.append(temp)
page_list.append(after)
return ''.join(page_list)
def custom(request):
#表示用户当前想要访问的页码：8
all_count = models.UserInfo.objects.all().count()
page_info = PageInfo(request.GET.get('page'),all_count,20,'/app01/custom/')
user_list = models.UserInfo.objects.all()[page_info.start():page_info.end()]
return render(request,'custom.html',{'user_list':user_list,'page_info':page_info})
####################################################
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="/static/plugins/bootstrap-3.4.1-dist/css/bootstrap.css" />
</head>
<body>
<ul>
{% for row in user_list %}
<li> {{ row.nid }} ====== {{ row.username }} </li>
{% endfor %}
</ul>
<nav aria-label="Page navigation">
<ul class="pagination">
{{ page_info.page|safe }}
</ul>
</nav>
</body>
