51 lines
2.8 KiB
Python
51 lines
2.8 KiB
Python
"""大周天演化候选模型（契约字典 §12；self-evolution-design.md §11）。
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演化候选是大周天（及未来镜界 / 反馈）产出的统一轻量演化增量载体；``type`` 区分
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候选对象，``level``（L0-L4）决定半自动边界（见 [大周天演化候选落地设计]
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../../docs/domain/core-domains.md §5）。``cycle_id`` 关联触发本次
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的大周天循环，``resulting_target_id`` 记录派生后的下游资源 ID。
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"""
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from datetime import datetime
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from sqlalchemy import Boolean, DateTime, Float, ForeignKey, String, Text
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from sqlalchemy.orm import Mapped, mapped_column
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from app.core.ids import new_evolution_candidate_id
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from app.core.time import utc_now
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from app.db.base import Base
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class EvolutionCandidate(Base):
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"""演化候选（统一表）。"""
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__tablename__ = "evolution_candidates"
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id: Mapped[str] = mapped_column(
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String(80), primary_key=True, default=new_evolution_candidate_id
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)
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character_id: Mapped[str] = mapped_column(String(80), ForeignKey("characters.id"), index=True)
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cycle_id: Mapped[str] = mapped_column(String(80), ForeignKey("big_cycles.id"), index=True)
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type: Mapped[str] = mapped_column(String(60), nullable=False)
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source: Mapped[str] = mapped_column(String(60), nullable=False, default="big_cycle")
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level: Mapped[str] = mapped_column(String(8), nullable=False, default="L4")
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scope: Mapped[str] = mapped_column(String(40), nullable=False, default="character_scope")
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title: Mapped[str] = mapped_column(String(200), nullable=False)
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proposal: Mapped[str] = mapped_column(Text, nullable=False)
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delta_json: Mapped[str] = mapped_column(Text, nullable=False, default="{}")
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evidence_ids_json: Mapped[str] = mapped_column(Text, nullable=False, default="[]")
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confidence: Mapped[float] = mapped_column(Float, nullable=False, default=0.5)
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benefit_score: Mapped[float] = mapped_column(Float, nullable=False, default=0.5)
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risk_score: Mapped[float] = mapped_column(Float, nullable=False, default=0.5)
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drift_score: Mapped[float] = mapped_column(Float, nullable=False, default=0.0)
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auto_apply_allowed: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
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status: Mapped[str] = mapped_column(String(40), nullable=False, default="pending", index=True)
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resulting_target_id: Mapped[str | None] = mapped_column(String(80))
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error_message: Mapped[str | None] = mapped_column(Text)
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reviewed_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
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reviewed_by: Mapped[str] = mapped_column(String(80), nullable=False, default="system")
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=utc_now)
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updated_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), default=utc_now, onupdate=utc_now
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)
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