kopia lustrzana https://github.com/glidernet/ogn-python
24 wiersze
915 B
Python
24 wiersze
915 B
Python
from sqlalchemy import Column, String, Integer, SmallInteger, Float, Date, ForeignKey, Index
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from sqlalchemy.orm import relationship, backref
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from .base import Base
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class ReceiverCoverage(Base):
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__tablename__ = "receiver_coverages"
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location_mgrs = Column(String(9), primary_key=True)
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receiver_id = Column(Integer, ForeignKey('receivers.id', ondelete='SET NULL'), primary_key=True)
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date = Column(Date, primary_key=True)
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max_signal_quality = Column(Float)
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max_altitude = Column(Float(precision=2))
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min_altitude = Column(Float(precision=2))
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aircraft_beacon_count = Column(Integer)
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device_count = Column(SmallInteger)
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# Relations
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receiver_id = Column(Integer, ForeignKey('receivers.id', ondelete='SET NULL'), index=True)
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receiver = relationship('Receiver', foreign_keys=[receiver_id], backref=backref('receiver_coverages', order_by='ReceiverCoverage.date.asc()')) |