handlers.py 文件源码

def get_page_context(self, page):
        try:
            count = await settings.manager.count(Record.select())
        except (psycopg2.OperationalError, peewee.IntegrityError,
                peewee.ProgrammingError):
            count = 0

        page_count, prev_page, page, next_page = \
            await self.paging(count, settings.RECORDS_PER_PAGE, page)

        try:
            records = await settings.manager.execute(
                Record
                .select()
                .order_by(
                    Record.active.desc(),
                    Record.uts.desc())
                .paginate(page, paginate_by=settings.RECORDS_PER_PAGE))
        except (psycopg2.OperationalError, peewee.IntegrityError,
                peewee.ProgrammingError):
            records = []

        return {'request': self.request,
                'current_user': (await self.get_current_user()),
                'records': records,
                'count': count,
                'page_count': page_count,
                'prev_page': prev_page,
                'page': page,
                'next_page': next_page}