cb758ad4fd
SQLAlchemy can't resolve ambiguous FK paths when tables have multiple cross-references. All relationships now specify foreign_keys. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
51 lines
3.2 KiB
Python
51 lines
3.2 KiB
Python
"""Session handoff model — unified park/escalate with history."""
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import uuid
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from datetime import datetime, timezone
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from typing import Optional, Any, TYPE_CHECKING
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from sqlalchemy import String, Text, Boolean, DateTime, ForeignKey, CheckConstraint
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from sqlalchemy.dialects.postgresql import UUID, JSONB
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from app.core.database import Base
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if TYPE_CHECKING:
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from app.models.ai_session import AISession
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from app.models.session_branch import SessionBranch
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from app.models.user import User
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class SessionHandoff(Base):
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"""A handoff event — either parking or escalating a session.
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Dual-writes to ai_sessions.escalation_package for backward compat.
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"""
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__tablename__ = "session_handoffs"
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__table_args__ = (
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CheckConstraint("intent IN ('park', 'escalate')", name="ck_session_handoffs_intent"),
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CheckConstraint("priority IN ('normal', 'elevated')", name="ck_session_handoffs_priority"),
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)
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id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
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session_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("ai_sessions.id", ondelete="CASCADE"), nullable=False, index=True)
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handed_off_by: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"), nullable=False)
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intent: Mapped[str] = mapped_column(String(20), nullable=False)
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source_branch_id: Mapped[Optional[uuid.UUID]] = mapped_column(UUID(as_uuid=True), ForeignKey("session_branches.id", ondelete="SET NULL"), nullable=True)
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snapshot: Mapped[dict[str, Any]] = mapped_column(JSONB, nullable=False, default=dict, comment="Branch map, status, next step, waiting on, watch out")
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ai_assessment: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
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ai_assessment_data: Mapped[Optional[dict[str, Any]]] = mapped_column(JSONB, nullable=True, comment="{likely_cause, suggested_steps, confidence}")
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artifacts: Mapped[Optional[list[dict[str, Any]]]] = mapped_column(JSONB, nullable=True, comment="[{name, type, reference}]")
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engineer_notes: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
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priority: Mapped[str] = mapped_column(String(20), nullable=False, default="normal")
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claimed_by: Mapped[Optional[uuid.UUID]] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="SET NULL"), nullable=True)
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claimed_at: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True), nullable=True)
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psa_note_pushed: Mapped[bool] = mapped_column(Boolean, default=False)
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psa_note_id: Mapped[Optional[str]] = mapped_column(String(100), nullable=True)
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notification_sent: Mapped[bool] = mapped_column(Boolean, default=False)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))
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# Relationships
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session: Mapped["AISession"] = relationship("AISession", foreign_keys=[session_id])
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handed_off_by_user: Mapped["User"] = relationship("User", foreign_keys=[handed_off_by])
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source_branch: Mapped[Optional["SessionBranch"]] = relationship("SessionBranch", foreign_keys=[source_branch_id])
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claimed_by_user: Mapped[Optional["User"]] = relationship("User", foreign_keys=[claimed_by])
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