bambuddy/backend/app/models/spool_assignment.py
2026-02-12 11:54:50 +01:00

35 lines
1.5 KiB
Python

from datetime import datetime
from sqlalchemy import DateTime, ForeignKey, Integer, String, UniqueConstraint, func
from sqlalchemy.orm import Mapped, mapped_column, relationship
from backend.app.core.database import Base
class SpoolAssignment(Base):
"""Assignment of a spool to a specific AMS slot on a printer."""
__tablename__ = "spool_assignment"
id: Mapped[int] = mapped_column(primary_key=True)
spool_id: Mapped[int] = mapped_column(ForeignKey("spool.id", ondelete="CASCADE"))
printer_id: Mapped[int] = mapped_column(ForeignKey("printers.id", ondelete="CASCADE"))
ams_id: Mapped[int] = mapped_column(Integer) # 0-3, 128+ (HT), 254/255 (ext)
tray_id: Mapped[int] = mapped_column(Integer) # 0-3
fingerprint_color: Mapped[str | None] = mapped_column(String(8)) # tray_color snapshot
fingerprint_type: Mapped[str | None] = mapped_column(String(50)) # tray_type snapshot
created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
spool: Mapped["Spool"] = relationship(back_populates="assignments")
printer: Mapped["Printer"] = relationship()
__table_args__ = (UniqueConstraint("printer_id", "ams_id", "tray_id"),)
@property
def printer_name(self) -> str | None:
"""Get printer name from loaded relationship."""
return self.printer.name if self.printer else None
from backend.app.models.printer import Printer # noqa: E402, F401
from backend.app.models.spool import Spool # noqa: E402, F401