PIbd-42_SSPR/db/models/recycling_parameters_model.py

from typing import Optional

from sqlalchemy import ForeignKey

from db.models.base import Base, int_pk_incr
from sqlalchemy.orm import Mapped, mapped_column

class RecyclingParameters(Base):
    __tablename__ = 'recycling_parameters'

    id: Mapped[int_pk_incr]
    load_id: Mapped[Optional[int]] = mapped_column(ForeignKey('load_parameters.id', ondelete='SET NULL'))
    recycling_level: Mapped[int]
    co2: Mapped[float]
    n2: Mapped[float]
    h2o: Mapped[float]
    o2: Mapped[float]

    def __repr__(self):
        return f"<RecyclingParameters>"