32 lines
1.3 KiB
Python
32 lines
1.3 KiB
Python
from datetime import datetime, timezone
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from sqlalchemy import BigInteger, Column, DateTime, Index, String, Text, UniqueConstraint
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from sqlalchemy.dialects.postgresql import JSONB
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from database.postgres import Base
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def _now():
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return datetime.now(timezone.utc)
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class DeviceAlert(Base):
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"""Current alert state per device+subsystem (upserted, not appended)."""
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__tablename__ = "device_alerts"
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__table_args__ = (
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UniqueConstraint("device_serial", "subsystem"),
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Index("idx_device_alerts_serial", "device_serial"),
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)
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id = Column(BigInteger, primary_key=True, autoincrement=True)
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device_serial = Column(String(128), nullable=False)
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subsystem = Column(String(128), nullable=False)
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state = Column(String(64), nullable=False)
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message = Column(Text)
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updated_at = Column(DateTime(timezone=True), nullable=False, default=_now, onupdate=_now)
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# NOTE: device_logs, commands, and heartbeats are NOT declared as ORM models here.
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# device_logs is a partitioned table — SQLAlchemy ORM does not support declarative
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# partitioned tables cleanly. All three tables are created via raw SQL in the
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# Alembic migration and accessed via raw queries in database/core.py (SQLite now)
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# and will be accessed via raw async SQL after Phase 5 cutover.
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