s4 自定义分页二

utils\pager.py

class PageInfo(object):
    def __init__(self,current_page,all_count,per_page,base_url,show_page=11):
        """
        :param current_page:
        :param all_count: 数据库总行数
        :param per_page: 每页显示行数
        :return:
        """
        try:
            self.current_page=int(current_page)
        except Exception as e:
            self.current_page=1
        self.per_page=per_page

        a,b=divmod(all_count,per_page)
        if b:
            a=a+1
        self.all_pager=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 pager(self):
        # v="<a href='/custom.html?page=1'>1</a>"
        # return v
        page_list =[]

        half =int((self.show_page-1)/2)
        #如果数据总页数<11
        if self.all_pager < self.show_page:
            begin=1
            stop=self.all_pager+1
        #如果数据总页数>11
        else:
            # 如果当前页 《=5 永远显示1,11
            if self.current_page<=half:
                begin=1
                stop=self.show_page+1
            else:
                if self.current_page+half >self.all_pager:
                    begin=self.all_pager -self.show_page +1
                    stop =self.all_pager+1
                else:
                    begin=self.current_page -half
                    stop =self.current_page +half+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)

        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)

        if self.current_page>=self.all_pager:
            nex="<li><a  href='#'>下一页</a></li>"
        else:
            nex="<li><a  href='%s?page=%s'>下一页</a></li>"  % (self.base_url,self.current_page+1)
        page_list.append(nex)

        return ''.join(page_list)
        
views:
from utils.pager import PageInfo

def custom(request):
    # 用户当前需要访问页码
    all_count=models.UserInfo.objects.all().count()
    page_info=PageInfo(request.GET.get('page'),all_count,10,'/custom.html',11)
    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})
    
    
html:
 <link rel="stylesheet" href="/static/plugins/bootstrap-3.3.7-dist/css/bootstrap.css">
 
 
 <nav aria-label="Page navigation">
  <ul class="pagination">
      {{ page_info.pager| safe }}

  </ul>
</nav>