56 lines
2.3 KiB
Python
56 lines
2.3 KiB
Python
from __future__ import annotations
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from datetime import datetime
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from sqlalchemy import BigInteger, DateTime, ForeignKey, Integer, String, Text, UniqueConstraint, func
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from sqlalchemy.orm import Mapped, mapped_column
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from app.models.base import Base
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class QuestionInsightCleanedQuestion(Base):
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"""用户问题清洗后的持久化结果。
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每个原始消息至少写入一条记录。没有有效问题的消息会写入 accepted=0
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的占位记录，使增量清洗无需重复读取已经处理过的聊天原文。
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"""
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__tablename__ = "sys_question_insight_cleaned_question"
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__table_args__ = (
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UniqueConstraint(
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"message_id",
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"cleaner_version",
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"part_index",
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name="uq_question_insight_message_version_part",
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),
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)
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id: Mapped[int] = mapped_column(
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BigInteger().with_variant(Integer, "sqlite"),
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primary_key=True,
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autoincrement=True,
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)
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message_id: Mapped[int] = mapped_column(
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ForeignKey("sys_chat_message.id", ondelete="CASCADE"),
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nullable=False,
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)
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session_id: Mapped[int] = mapped_column(BigInteger, index=True, nullable=False)
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user_id: Mapped[int] = mapped_column(BigInteger, index=True, nullable=False)
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part_index: Mapped[int] = mapped_column(Integer, nullable=False)
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cleaner_version: Mapped[str] = mapped_column(String(20), nullable=False)
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source_hash: Mapped[str] = mapped_column(String(64), nullable=False)
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cleaned_text: Mapped[str] = mapped_column(Text, nullable=False, default="")
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normalized_text: Mapped[str] = mapped_column(Text, nullable=False, default="")
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category: Mapped[str] = mapped_column(String(50), nullable=False, default="other")
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tokens_json: Mapped[str] = mapped_column(Text, nullable=False, default="[]")
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accepted: Mapped[int] = mapped_column(Integer, nullable=False, default=1)
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filtered_reason: Mapped[str | None] = mapped_column(String(100), nullable=True)
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source_created_at: Mapped[datetime] = mapped_column(DateTime, nullable=False)
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created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), nullable=False)
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updated_at: Mapped[datetime] = mapped_column(
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DateTime,
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server_default=func.now(),
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onupdate=func.now(),
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nullable=False,
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)
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