自定义分页组件
Posted dangrui0725
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自定义
# pager.py
class Pagination(object): def __init__(self, totalCount, currentPage, perPageItemNum=10, maxPageNum=7): # 数据总个数 self.total_count = totalCount # 当前页 try: v = int(currentPage) if v <= 0: v = 1 self.current_page = v except Exception as e: self.current_page = 1 # 每页显示的行数 self.per_page_item_num = perPageItemNum # 最多显示页面 self.max_page_num = maxPageNum def start(self): return (self.current_page - 1) * self.per_page_item_num def end(self): return self.current_page * self.per_page_item_num @property def num_pages(self): """ 总页数 :return: """ # 666 # 10 a, b = divmod(self.total_count, self.per_page_item_num) if b == 0: return a return a + 1 def pager_num_range(self): # self.num_pages() # self.num_pages # 当前页 # self.current_page # 最多显示的页码数量 11 # self.per_pager_num # 总页数 # self.num_pages if self.num_pages < self.max_page_num: return range(1, self.num_pages + 1) # 总页数特别多 5 part = int(self.max_page_num / 2) if self.current_page <= part: return range(1, self.max_page_num + 1) if (self.current_page + part) > self.num_pages: return range(self.num_pages - self.max_page_num + 1, self.num_pages + 1) return range(self.current_page - part, self.current_page + part + 1) def page_str(self): page_list = [] first = "<li><a href=‘/index2.html?p=1‘>首页</a></li>" page_list.append(first) if self.current_page == 1: prev = "<li><a href=‘#‘>上一页</a></li>" else: prev = "<li><a href=‘/index2.html?p=%s‘>上一页</a></li>" % (self.current_page - 1,) page_list.append(prev) for i in self.pager_num_range(): if i == self.current_page: temp = "<li class=‘active‘><a href=‘/index2.html?p=%s‘>%s</a></li>" % (i, i) else: temp = "<li><a href=‘/index2.html?p=%s‘>%s</a></li>" % (i, i) page_list.append(temp) if self.current_page == self.num_pages: nex = "<li><a href=‘#‘>下一页</a></li>" else: nex = "<li><a href=‘/index2.html?p=%s‘>下一页</a></li>" % (self.current_page + 1,) page_list.append(nex) last = "<li><a href=‘/index2.html?p=%s‘>尾页</a></li>" % (self.num_pages,) page_list.append(last) return ‘‘.join(page_list)
视图
USER_LIST = []
for i in range(1,666):
temp = {‘name‘:‘root‘+str(i), ‘age‘:i}
USER_LIST.append(temp)
def index2(request):
from app01.pager import Pagination
current_page = request.GET.get(‘p‘)
page_obj = Pagination(666,current_page)
data_list = USER_LIST[page_obj.start():page_obj.end()]
return render(request,‘index2.html‘,{‘data‘:data_list,‘page_obj‘:page_obj})
模板
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <link rel="stylesheet" href="/static/bootstrap-3.3.7-dist/css/bootstrap.css" /> </head> <body> <ul> {% for row in data %} <li>{{ row.name }}-{{ row.age }}</li> {% endfor %} </ul> {% for i in page_obj.pager_num_range %} <a href="/index2.html?p={{ i }}">{{ i }}</a> {% endfor %} <hr/> <ul class="pagination pagination-sm"> {{ page_obj.page_str|safe }} </ul> <div style="height: 300px;"></div> </body> </html>
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