34 lines
1.2 KiB
Python
34 lines
1.2 KiB
Python
import enum
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from sqlalchemy import Column, Integer, String, TIMESTAMP, Text, ForeignKey, Enum, UniqueConstraint, func
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from sqlalchemy.orm import relationship
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from .base import Base
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class BookStatusEnum(enum.Enum):
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available = 'available'
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borrowed = 'borrowed'
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reserved = 'reserved'
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class Book(Base):
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__tablename__ = 'book'
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__table_args__ = (UniqueConstraint('isbn'),)
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id = Column(Integer, primary_key=True, autoincrement=True)
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author_id = Column(Integer, ForeignKey('author.id'), nullable=False)
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title = Column(String(100), nullable=False)
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description = Column(Text, nullable=False)
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year_published = Column(String(4), nullable=False)
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isbn = Column(String(13), nullable=False, unique=True)
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status = Column(Enum(BookStatusEnum), nullable=False, default=BookStatusEnum.available)
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created_at = Column(TIMESTAMP, nullable=False, server_default=func.now())
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last_updated = Column(TIMESTAMP, nullable=False, server_default=func.now())
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author = relationship('Author', back_populates='books')
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categories = relationship('BookCategory',secondary='book_category_link',back_populates='books')
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__all__ = ["Book", "BookStatusEnum"]
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