25 lines
951 B
Python
25 lines
951 B
Python
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from datetime import datetime
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from sqlalchemy import DateTime, Float, ForeignKey, Index
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.database import Base
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class Position(Base):
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__tablename__ = "positions"
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id: Mapped[int] = mapped_column(primary_key=True)
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vehicle_id: Mapped[int] = mapped_column(ForeignKey("vehicles.id", ondelete="CASCADE"))
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timestamp: Mapped[datetime] = mapped_column(DateTime, nullable=False, default=datetime.utcnow)
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lat: Mapped[float] = mapped_column(Float, nullable=False)
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lon: Mapped[float] = mapped_column(Float, nullable=False)
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speed: Mapped[float] = mapped_column(Float, default=0.0) # km/h
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heading: Mapped[float] = mapped_column(Float, default=0.0) # 0-360 degrees
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# Relationships
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vehicle: Mapped["Vehicle"] = relationship(back_populates="positions")
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__table_args__ = (
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Index("idx_positions_vehicle_ts", "vehicle_id", "timestamp"),
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)
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