handlers.py 文件源码

def get_page_context(self):
        """
        Return current page context
        """
        try:
            page = int(self.get_argument('page', 1))
        except ValueError:
            page = 1

        try:
            count = peewee.SelectQuery(Record).count()
        except peewee.IntegrityError:
            count = 0

        page_count = int(count/env.ADMIN_ITEMS_PER_PAGE) + \
            int(bool(count % env.ADMIN_ITEMS_PER_PAGE))

        prev_page, page, next_page = self.paging(page, page_count)

        try:
            records = Record\
                .select()\
                .order_by(
                    Record.active.desc(),
                    Record.uts.desc())\
                .paginate(page, paginate_by=env.ADMIN_ITEMS_PER_PAGE)
        except peewee.IntegrityError:
            records = []

        return dict(records=records,
                    count=count,
                    page_count=page_count,
                    prev_page=prev_page,
                    page=page,
                    next_page=next_page)