def getpage(self):
paginator = Paginator(self.objectlist, self.num)
currentPage = self.request.GET.get('page', 1)
object_list = paginator.get_page(
currentPage) # Django 2.0下新增了get_page()方法
page_range = []
current = object_list.number # 当前页码
page_all = paginator.num_pages # 总页数
mid_pages = 3 # 中间段显示的页码数
page_go = 1 # 默认跳转的页码
# 获取优化显示的页码列表
if page_all <= 2 + mid_pages:
# 页码数少于6页就无需分析哪些地方需要隐藏
page_range = paginator.page_range
else:
# 添加应该显示的页码
page_range += [1, page_all]
page_range += [current - 1, current, current + 1]
# 若当前页是头尾，范围拓展多1页
if current == 1 or current == page_all:
page_range += [current + 2, current - 2]
# 去掉超出范围的页码
page_range = filter(lambda x: x >= 1 and x <= page_all, page_range)
# 排序去重
page_range = sorted(list(set(page_range)))
# 查漏补缺
# 从第2个开始遍历，查看页码间隔，若间隔为0则是连续的
# 若间隔为1则补上页码；间隔超过1，则补上省略号
t = 1
for i in range(len(page_range) - 1):
step = page_range[t] - page_range[t - 1]
if step >= 2:
if step == 2:
page_range.insert(t, page_range[t] - 1) # 补页码
else:
page_go = page_range[t - 1] + 1
page_range.insert(t, '...')
t += 1
t += 1
# 优化结果之后的页码列表
paginator.page_range_ex = page_range
# 默认跳转页的值
paginator.page_go = page_go
return paginator, object_list
