22 lines
851 B
Python
22 lines
851 B
Python
"""项目-信号关联"""
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from .base import Base
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from sqlalchemy import BigInteger, Integer, VARCHAR, Float, ForeignKey
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class ProjectSignalLink(Base):
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__tablename__ = "project_signal_links"
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id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
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project_id: Mapped[int] = mapped_column(
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BigInteger, ForeignKey("projects.id"), nullable=False
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)
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signal_id: Mapped[int] = mapped_column(
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BigInteger, ForeignKey("signals.id"), nullable=False
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)
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link_type: Mapped[str] = mapped_column(VARCHAR(50), nullable=False, default="related")
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relevance_score: Mapped[float] = mapped_column(Float, nullable=False, default=1.0)
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project = relationship("Project", back_populates="signal_links")
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signal = relationship("Signal")
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