21 lines
688 B
Python
21 lines
688 B
Python
from typing import List
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from typing import Optional
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from sqlalchemy import String
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from sqlalchemy.orm import Mapped
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from sqlalchemy.orm import mapped_column
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from sqlalchemy.orm import relationship
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from .base import Base
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class Tag(Base):
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__tablename__ = "tag"
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id: Mapped[int] = mapped_column(primary_key=True)
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name: Mapped[str] = mapped_column(String(255))
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books: Mapped[List["Book"]] = relationship(
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back_populates="tags", cascade="all, delete-orphan"
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)
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def __repr__(self) -> str:
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return f"Book(id={self.id!r}, name={self.name!r}, publisher={self.publisher!r}," \
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" notes={self.notes!r}, classification={self.classification!r})" |