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- from datetime import datetime
- from sqlalchemy import DateTime, Integer, String, Text
- from sqlalchemy.dialects.sqlite import JSON
- from sqlalchemy.orm import Mapped, mapped_column
- from core_db import AuditMixin, Base, TenantMixin, VersionMixin
- from core_shared import JSONValue
- class MemoryItem(TenantMixin, AuditMixin, VersionMixin, Base):
- __tablename__ = "memory_item"
- scope_type: Mapped[str] = mapped_column(String(32), index=True)
- scope_id: Mapped[str] = mapped_column(String(64), index=True)
- memory_type: Mapped[str] = mapped_column(String(64), default="fact", index=True)
- content_text: Mapped[str] = mapped_column(Text)
- content_json: Mapped[dict[str, JSONValue] | None] = mapped_column(JSON, nullable=True)
- metadata_json: Mapped[dict[str, JSONValue]] = mapped_column(JSON, default=dict)
- embedding_model: Mapped[str | None] = mapped_column(String(64), nullable=True, index=True)
- embedding_json: Mapped[list[float] | None] = mapped_column(JSON, nullable=True)
- owner_agent_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
- user_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
- session_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
- source_ref: Mapped[str | None] = mapped_column(String(256), nullable=True)
- importance_score: Mapped[int] = mapped_column(Integer, default=0)
- status: Mapped[str] = mapped_column(String(32), default="active", index=True)
- last_accessed_time: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
- expires_time: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
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