35 lines
852 B
Python
35 lines
852 B
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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if TYPE_CHECKING:
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from models import Deal
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class DealGroup(BaseModel):
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__tablename__ = 'deal_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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deals: Mapped["Deal"] = relationship(
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back_populates='group',
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secondary='deal_relations'
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)
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deal_relations = Table(
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'deal_relations',
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BaseModel.metadata,
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Column('deal_id', ForeignKey('deals.id'), primary_key=True, unique=True),
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Column('group_id', ForeignKey('deal_groups.id'), primary_key=True)
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)
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