后台实现的一个分页类:
- from django.utils.safestring import mark_safe
- class Page:
- def __init__(self, current_page, data_count, per_page_count=10, pager_num=7):
- self.current_page = current_page
- self.data_count = data_count
- self.per_page_count = per_page_count
- self.pager_num = pager_num
- @property
- def start(self):
- return (self.current_page - 1) * self.per_page_count
- @property
- def end(self):
- return self.current_page * self.per_page_count
- @property
- def total_count(self):
- v, y = divmod(self.data_count, self.per_page_count)
- if y:
- v += 1
- return v
- def page_str(self, base_url):
- page_list = []
- if self.total_count <self.pager_num:
- start_index = 1
- end_index = self.total_count + 1
- else:
- if self.current_page <= (self.pager_num + 1) / 2:
- start_index = 1
- end_index = self.pager_num + 1
- else:
- start_index = self.current_page - (self.pager_num - 1) / 2
- end_index = self.current_page + (self.pager_num + 1) / 2
- if (self.current_page + (self.pager_num - 1) / 2)> self.total_count:
- end_index = self.total_count + 1
- start_index = self.total_count - self.pager_num + 1
- if self.current_page == 1:
- prev = '上一页'
- else:
- prev = '上一页' % (base_url, self.current_page - 1,)
- page_list.append(prev)
- for i in range(int(start_index), int(end_index)):
- if i == self.current_page:
- temp = '%s' % (base_url, i, i)
- else:
- temp = '%s' % (base_url, i, i)
- page_list.append(temp)
- if self.current_page == self.total_count:
- nex = '下一页'
- else:
- nex = '下一页' % (base_url, self.current_page + 1,)
- page_list.append(nex)
- jump = """%s?p=");'>GO
- function jumpTo(ths,base){
- var val = ths.previousSibling.value;
- location.href = base + val;
- }
- """ % (base_url,)
- page_list.append(jump)
- page_str = mark_safe("".join(page_list))
- return page_str
来源: http://www.bubuko.com/infodetail-2631190.html