utp_service/backend/app/models/rack.py

33 lines
1.2 KiB
Python

from typing import Optional
from sqlalchemy import ForeignKey, Integer, String, Text
from sqlalchemy.orm import Mapped, mapped_column, relationship
from .base import Base, TimestampMixin
class Rack(Base, TimestampMixin):
__tablename__ = "racks"
id: Mapped[int] = mapped_column(Integer, primary_key=True)
object_id: Mapped[int] = mapped_column(
Integer,
ForeignKey("objects.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
name: Mapped[str] = mapped_column(String(100), nullable=False)
rack_type: Mapped[Optional[str]] = mapped_column(String(50), nullable=True)
description: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
location: Mapped[Optional[str]] = mapped_column(String(200), nullable=True)
zone_id: Mapped[Optional[int]] = mapped_column(
Integer,
ForeignKey("zones.id", ondelete="SET NULL"),
nullable=True,
index=True,
)
object: Mapped["Object"] = relationship("Object", back_populates="racks")
zone: Mapped[Optional["Zone"]] = relationship("Zone", back_populates="racks")
devices: Mapped[list["Device"]] = relationship("Device", back_populates="rack")