120 lines
3.0 KiB
Python
120 lines
3.0 KiB
Python
from __future__ import annotations
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import enum
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import uuid
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from datetime import datetime
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from typing import Any
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from sqlalchemy import DateTime, Enum, ForeignKey, Index, String, Text, func
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from sqlalchemy.dialects.postgresql import JSONB, UUID
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.models.base import Base, TimestampMixin
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class DialogMessageRole(str, enum.Enum):
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USER = "user"
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ASSISTANT = "assistant"
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class PipelineDialog(TimestampMixin, Base):
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__tablename__ = "pipeline_dialogs"
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__table_args__ = (
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Index("ix_pipeline_dialogs_user_updated_at", "user_id", "updated_at"),
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)
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id: Mapped[uuid.UUID] = mapped_column(
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UUID(as_uuid=True),
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primary_key=True,
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)
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user_id: Mapped[uuid.UUID] = mapped_column(
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UUID(as_uuid=True),
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ForeignKey("users.id", ondelete="CASCADE"),
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nullable=False,
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index=True,
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)
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title: Mapped[str | None] = mapped_column(
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String(256),
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nullable=True,
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)
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last_status: Mapped[str | None] = mapped_column(
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String(32),
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nullable=True,
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)
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last_pipeline_id: Mapped[uuid.UUID | None] = mapped_column(
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UUID(as_uuid=True),
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ForeignKey("pipelines.id", ondelete="SET NULL"),
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nullable=True,
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index=True,
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)
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last_message_preview: Mapped[str | None] = mapped_column(
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Text,
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nullable=True,
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)
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user = relationship(
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"User",
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back_populates="pipeline_dialogs",
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lazy="select",
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)
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last_pipeline = relationship(
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"Pipeline",
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back_populates="dialogs",
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lazy="select",
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)
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messages = relationship(
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"PipelineDialogMessage",
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back_populates="dialog",
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cascade="all, delete-orphan",
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passive_deletes=True,
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lazy="selectin",
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)
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class PipelineDialogMessage(Base):
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__tablename__ = "pipeline_dialog_messages"
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__table_args__ = (
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Index(
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"ix_pipeline_dialog_messages_dialog_created_at",
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"dialog_id",
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"created_at",
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),
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)
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id: Mapped[uuid.UUID] = mapped_column(
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UUID(as_uuid=True),
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primary_key=True,
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default=uuid.uuid4,
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)
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dialog_id: Mapped[uuid.UUID] = mapped_column(
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UUID(as_uuid=True),
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ForeignKey("pipeline_dialogs.id", ondelete="CASCADE"),
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nullable=False,
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index=True,
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)
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role: Mapped[DialogMessageRole] = mapped_column(
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Enum(DialogMessageRole, name="dialog_message_role"),
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nullable=False,
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index=True,
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)
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content: Mapped[str] = mapped_column(
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Text,
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nullable=False,
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)
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assistant_payload: Mapped[dict[str, Any] | None] = mapped_column(
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JSONB,
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nullable=True,
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)
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created_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True),
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server_default=func.now(),
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nullable=False,
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index=True,
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)
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dialog = relationship(
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"PipelineDialog",
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back_populates="messages",
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lazy="select",
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)
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