from sqlalchemy import Boolean, Column, Integer, DateTime, ForeignKey from sqlalchemy.orm import relationship from .base import Base class TakeoffLanding(Base): __tablename__ = 'takeoff_landing' id = Column(Integer, primary_key=True) timestamp = Column(DateTime, index=True) track = Column(Integer) is_takeoff = Column(Boolean) # Relations airport_id = Column(Integer, ForeignKey('airport.id', ondelete='SET NULL'), index=True) airport = relationship('Airport', foreign_keys=[airport_id]) device_id = Column(Integer, ForeignKey('device.id', ondelete='SET NULL'), index=True) device = relationship('Device', foreign_keys=[device_id])