mirror of https://github.com/stijndcl/didier
39 lines
1.5 KiB
Python
39 lines
1.5 KiB
Python
import datetime
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from sqlalchemy import delete, select
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from sqlalchemy.ext.asyncio import AsyncSession
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from database.schemas import UforaAnnouncement, UforaCourse
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__all__ = ["create_new_announcement", "get_courses_with_announcements", "remove_old_announcements"]
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async def get_courses_with_announcements(session: AsyncSession) -> list[UforaCourse]:
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"""Get all courses where announcements are enabled"""
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statement = select(UforaCourse).where(UforaCourse.log_announcements)
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return list((await session.execute(statement)).scalars().all())
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async def create_new_announcement(
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session: AsyncSession, announcement_id: int, course: UforaCourse, publication_date: datetime.datetime
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) -> UforaAnnouncement:
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"""Add a new announcement to the database"""
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new_announcement = UforaAnnouncement(
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announcement_id=announcement_id, course=course, publication_date=publication_date
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)
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session.add(new_announcement)
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await session.commit()
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return new_announcement
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async def remove_old_announcements(session: AsyncSession):
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"""Delete all announcements that are > 8 days old
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The RSS feed only goes back 7 days, so all of these old announcements never have to
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be checked again when checking if an announcement is fresh or not.
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"""
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limit = datetime.datetime.utcnow() - datetime.timedelta(days=8)
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statement = delete(UforaAnnouncement).where(UforaAnnouncement.publication_date < limit)
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await session.execute(statement)
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await session.commit()
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