42 lines
2.2 KiB
Python
42 lines
2.2 KiB
Python
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from datetime import datetime
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from typing import Any
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from sqlalchemy import JSON, DateTime, Integer, String, Text
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from sqlalchemy.dialects.mysql import BIGINT, TINYINT
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from sqlalchemy.orm import Mapped, mapped_column
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from app.model.base import Base
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class Episode(Base):
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"""会话片段（`episodes`）；列与库中实际结构逐列一致。
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列名与类型按 `information_schema.COLUMNS` 核对（18 列，无生成列），
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同名兄弟模型如 `ConversationMessage.handler_id` 既有用法同样使用
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`BIGINT(unsigned=True)`，因此无符号列在此保持一致的映射风格。
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唯一键 `episode_uuid`、`content_hash` 由数据库维护：抽取幂等依赖
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`content_hash` 唯一键，跨存储稳定标识依赖 `episode_uuid`。
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"""
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__tablename__ = "episodes"
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id: Mapped[int] = mapped_column(BIGINT(unsigned=True), primary_key=True, autoincrement=True)
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episode_uuid: Mapped[str | None] = mapped_column(String(36), unique=True)
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customer_id: Mapped[int] = mapped_column(BIGINT(unsigned=True), nullable=False)
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session_id: Mapped[str] = mapped_column(String(64), nullable=False)
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start_message_no: Mapped[int | None] = mapped_column(Integer)
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end_message_no: Mapped[int | None] = mapped_column(Integer)
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portals_involved: Mapped[list[Any]] = mapped_column(JSON, nullable=False)
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summary: Mapped[str] = mapped_column(Text, nullable=False)
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extraction_status: Mapped[str] = mapped_column(String(16), nullable=False, default="待提取")
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content_hash: Mapped[str | None] = mapped_column(String(64), unique=True)
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retry_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
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started_at: Mapped[datetime | None] = mapped_column(DateTime)
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ended_at: Mapped[datetime | None] = mapped_column(DateTime)
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handoff_to_employee_id: Mapped[int | None] = mapped_column(BIGINT(unsigned=True))
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start_at: Mapped[datetime | None] = mapped_column(DateTime)
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end_at: Mapped[datetime | None] = mapped_column(DateTime)
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promoted_to_ltm: Mapped[bool] = mapped_column(
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TINYINT(display_width=1), nullable=False, default=False
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)
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created_at: Mapped[datetime] = mapped_column(DateTime, nullable=False)
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