63 lines
2.2 KiB
Python
63 lines
2.2 KiB
Python
import datetime
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from typing import TYPE_CHECKING, Optional
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from sqlalchemy import ForeignKey
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from models import BaseModel
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if TYPE_CHECKING:
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from models import Product, Client
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class ResidualPallet(BaseModel):
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__tablename__ = 'residual_pallets'
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id: Mapped[int] = mapped_column(primary_key=True)
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created_at: Mapped[datetime.datetime] = mapped_column(nullable=False)
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client_id: Mapped[Optional[int]] = mapped_column(ForeignKey('clients.id'))
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client: Mapped['Client'] = relationship(back_populates='pallets')
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boxes: Mapped[list['ResidualBox']] = relationship(
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back_populates='pallet',
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uselist=True,
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lazy='joined',
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cascade='all, delete-orphan',
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)
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residual_products: Mapped[list['ResidualProduct']] = relationship(
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back_populates='pallet',
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uselist=True,
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lazy='joined',
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cascade='all, delete-orphan',
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)
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class ResidualProduct(BaseModel):
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__tablename__ = 'residual_products'
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id: Mapped[int] = mapped_column(primary_key=True)
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quantity: Mapped[int] = mapped_column()
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product_id: Mapped[int] = mapped_column(ForeignKey('products.id'))
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product: Mapped['Product'] = relationship(lazy='joined')
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pallet_id: Mapped[Optional[int]] = mapped_column(ForeignKey('residual_pallets.id'))
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pallet: Mapped[ResidualPallet] = relationship(lazy='joined', back_populates="residual_products")
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box_id: Mapped[Optional[int]] = mapped_column(ForeignKey('residual_boxes.id'))
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box: Mapped['ResidualBox'] = relationship(back_populates='residual_products')
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class ResidualBox(BaseModel):
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__tablename__ = 'residual_boxes'
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id: Mapped[int] = mapped_column(primary_key=True)
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created_at: Mapped[datetime.datetime] = mapped_column(nullable=False)
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pallet_id: Mapped[Optional[int]] = mapped_column(ForeignKey('residual_pallets.id'))
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pallet: Mapped[ResidualPallet] = relationship(back_populates='boxes')
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client_id: Mapped[Optional[int]] = mapped_column(ForeignKey('clients.id'))
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client: Mapped['Client'] = relationship(back_populates='boxes')
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residual_products: Mapped[list['ResidualProduct']] = relationship(back_populates='box')
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