47 lines
1.8 KiB
Python
47 lines
1.8 KiB
Python
from __future__ import annotations
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from datetime import datetime
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from sqlalchemy import Boolean, DateTime, Float, ForeignKey, Index, Integer, String, func
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.db import Base
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class Device(Base):
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__tablename__ = "devices"
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id: Mapped[str] = mapped_column(String(64), primary_key=True)
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name: Mapped[str] = mapped_column(String(255), nullable=False)
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device_type: Mapped[str] = mapped_column(String(64), nullable=False)
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enable_cloud_service: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
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hub_device_id: Mapped[str | None] = mapped_column(String(64))
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last_seen_at: Mapped[datetime | None] = mapped_column(DateTime)
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created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), nullable=False)
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updated_at: Mapped[datetime] = mapped_column(
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DateTime,
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server_default=func.now(),
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onupdate=func.now(),
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nullable=False,
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)
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readings: Mapped[list["Reading"]] = relationship(back_populates="device")
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class Reading(Base):
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__tablename__ = "readings"
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__table_args__ = (
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Index("ix_readings_device_recorded", "device_id", "recorded_at"),
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Index("ix_readings_recorded", "recorded_at"),
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)
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id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
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device_id: Mapped[str] = mapped_column(ForeignKey("devices.id"), nullable=False)
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recorded_at: Mapped[datetime] = mapped_column(DateTime, nullable=False)
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temperature: Mapped[float | None] = mapped_column(Float)
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humidity: Mapped[float | None] = mapped_column(Float)
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battery: Mapped[int | None] = mapped_column(Integer)
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version: Mapped[str | None] = mapped_column(String(32))
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device: Mapped[Device] = relationship(back_populates="readings")
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