53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
"""通知模型 — 任务转交/驳回等事件的消息提醒"""
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import uuid
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from datetime import datetime
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from sqlalchemy import String, DateTime, Boolean, ForeignKey, Text
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from sqlalchemy.dialects.postgresql import UUID
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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.core.time_utils import get_beijing_time
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# 通知类型常量
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NOTIFY_TRANSFER = "TRANSFER" # 新任务派发/转交
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NOTIFY_REJECT = "REJECT" # 品质驳回
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class Notification(Base):
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__tablename__ = "notifications"
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id: Mapped[uuid.UUID] = mapped_column(
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UUID(as_uuid=True), primary_key=True, default=uuid.uuid4,
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)
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user_id: Mapped[str] = mapped_column(
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String(64), nullable=False, index=True, comment="接收人ID（逻辑外键→老系统）",
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)
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title: Mapped[str] = mapped_column(
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String(200), nullable=False, comment="通知标题",
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)
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content: Mapped[str] = mapped_column(
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Text, nullable=False, comment="通知内容详情",
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)
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type: Mapped[str] = mapped_column(
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String(20), nullable=False, comment="通知类型: TRANSFER(转交派发) | REJECT(驳回)",
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)
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task_id: Mapped[uuid.UUID | None] = mapped_column(
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UUID(as_uuid=True), ForeignKey("tasks.id", ondelete="SET NULL"), nullable=True, comment="关联任务ID",
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)
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is_read: Mapped[bool] = mapped_column(
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Boolean, default=False, comment="是否已读",
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)
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created_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), default=get_beijing_time, comment="创建时间",
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)
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def __repr__(self) -> str:
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return f"<Notification {self.type} → {self.user_id}>"
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