53 lines
1.3 KiB
Python
53 lines
1.3 KiB
Python
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__author__ = 'RemiZOffAlex'
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__copyright__ = '(c) RemiZOffAlex'
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__email__ = 'remizoffalex@mail.ru'
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from math import ceil
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def getpage(query, page=1, page_size=10):
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"""
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Постраничный вывод
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"""
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if page_size:
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query = query.limit(page_size)
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if page:
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query = query.offset((page-1)*page_size)
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return query
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class Pagination(object):
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"""
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Пагинация
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"""
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def __init__(self, page, per_page, total_count):
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self.page = page
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self.per_page = per_page
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self.total_count = total_count
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@property
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def pages(self):
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return int(ceil(self.total_count / float(self.per_page)))
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@property
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def has_prev(self):
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return self.page > 1
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@property
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def has_next(self):
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return self.page < self.pages
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def iter_pages(self, left_edge=2, left_current=2,
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right_current=5, right_edge=2):
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last = 0
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for num in range(1, self.pages + 1):
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if num <= left_edge or \
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(num > self.page - left_current - 1 and \
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num < self.page + right_current) or \
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num > self.pages - right_edge:
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if last + 1 != num:
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yield None
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yield num
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last = num
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