41 lines
1.0 KiB
Python
41 lines
1.0 KiB
Python
from typing import TYPE_CHECKING, Optional
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from sqlalchemy import ForeignKey, Table, Column
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from sqlalchemy.orm import mapped_column, Mapped, relationship
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from models import BaseModel
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from models import GroupBillRequest
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if TYPE_CHECKING:
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from models import Card
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class CardGroup(BaseModel):
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__tablename__ = 'card_groups'
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id: Mapped[int] = mapped_column(
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primary_key=True
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)
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name: Mapped[Optional[str]] = mapped_column(
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nullable=True
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)
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lexorank: Mapped[str] = mapped_column(
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nullable=False
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)
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cards: Mapped[list["Card"]] = relationship(
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back_populates='group',
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secondary='card_relations'
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)
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bill_requests: Mapped[list['GroupBillRequest']] = relationship(
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back_populates='group',
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lazy='selectin',
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uselist=True,
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)
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card_relations = Table(
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'card_relations',
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BaseModel.metadata,
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Column('card_id', ForeignKey('cards.id'), primary_key=True, unique=True),
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Column('group_id', ForeignKey('card_groups.id'), primary_key=True)
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)
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