49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
"""Note model: free-text notes attached polymorphically to accounts/contacts/deals."""
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from __future__ import annotations
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from enum import Enum
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from typing import TYPE_CHECKING
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from sqlalchemy import ForeignKey, Integer, String, Text
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.models.base import Base, OrgScopedMixin, SoftDeleteMixin, TimestampMixin
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if TYPE_CHECKING:
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from app.models.user import User
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class NoteParentType(str, Enum):
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"""Polymorphic parent type for notes (no DB FK, validated in service layer)."""
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account = "account"
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contact = "contact"
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deal = "deal"
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class Note(Base, TimestampMixin, SoftDeleteMixin, OrgScopedMixin):
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__tablename__ = "notes"
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id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
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body: Mapped[str] = mapped_column(Text, nullable=False)
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author_id: Mapped[int] = mapped_column(
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ForeignKey("users.id"), nullable=False, index=True
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)
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parent_type: Mapped[NoteParentType] = mapped_column(
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String(32), nullable=False, index=True
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)
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# parent_id is intentionally NOT a DB FK because of polymorphic parent.
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# Service layer (note_service.create_note) validates existence.
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parent_id: Mapped[int] = mapped_column(Integer, nullable=False, index=True)
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author: Mapped["User"] = relationship(
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"User", foreign_keys=[author_id], lazy="joined"
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)
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def __repr__(self) -> str:
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return f"<Note id={self.id} parent={self.parent_type}:{self.parent_id}>"
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__all__ = ["Note", "NoteParentType"]
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