models.py 文件源码

def from_schedule(cls, schedule):
        every = max(schedule.run_every.total_seconds(), 0)
        instance = cls.query.filter_by(every=every, period='seconds')
        if not instance:
            instance = cls(every=every, period='seconds')
            db.session.add(instance)
            db.session.commit()
        return instance