37 lines
2.4 KiB
Python
37 lines
2.4 KiB
Python
from sqlalchemy import CheckConstraint, DateTime, ForeignKey, Index, Integer, String, Text, 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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from app.utils.id_gen import generate_id
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class ChatGenerationTaskEvent(Base):
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"""Append-only event log shared by ChatGenerationTask and GenerationRecord."""
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__tablename__ = "chat_generation_task_events"
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__table_args__ = (
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CheckConstraint(
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"(owner_type = 'chat_generation_task' AND task_id IS NOT NULL AND generation_record_id IS NULL) "
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"OR (owner_type = 'generation_record' AND task_id IS NULL AND generation_record_id IS NOT NULL)",
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name="ck_chat_generation_task_events_owner",
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),
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Index("idx_chat_generation_task_events_task_created", "owner_type", "task_id", "created_at"),
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Index("idx_chat_generation_task_events_record_created", "owner_type", "generation_record_id", "created_at"),
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Index("idx_chat_generation_task_events_attempt_created", "owner_type", "generation_attempt_no", "created_at"),
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)
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id: Mapped[str] = mapped_column(String(32), primary_key=True, default=generate_id)
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owner_type: Mapped[str] = mapped_column(String(32), nullable=False, default="chat_generation_task", server_default="chat_generation_task", index=True)
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task_id: Mapped[str | None] = mapped_column(String(32), ForeignKey("chat_generation_tasks.id", ondelete="CASCADE"), nullable=True, index=True)
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generation_record_id: Mapped[str | None] = mapped_column(String(32), ForeignKey("generation_records.id", ondelete="CASCADE"), nullable=True, index=True)
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generation_attempt_no: Mapped[int] = mapped_column(Integer, nullable=False, default=1, server_default="1", index=True)
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generation_mode: Mapped[str | None] = mapped_column(String(32), nullable=True, index=True)
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event_type: Mapped[str] = mapped_column(String(64), index=True)
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from_status: Mapped[str | None] = mapped_column(String(32), nullable=True)
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to_status: Mapped[str | None] = mapped_column(String(32), nullable=True)
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from_stage: Mapped[str | None] = mapped_column(String(48), nullable=True)
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to_stage: Mapped[str | None] = mapped_column(String(48), nullable=True)
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message: Mapped[str | None] = mapped_column(Text, nullable=True)
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detail_json: Mapped[str | None] = mapped_column(Text, nullable=True)
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created_at = mapped_column(DateTime(timezone=True), server_default=func.now(), index=True)
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