duxingchen
17105dc9c2
- backend: FastAPI 后端服务 (Python) - frontend: React + Tauri 前端应用 - docker-compose.yml: 容器编排配置
60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
"""任务模型 — 支持无限嵌套"""
|
||
import uuid
|
||
from datetime import datetime, timezone
|
||
from sqlalchemy import String, DateTime, Boolean, ForeignKey
|
||
from sqlalchemy.dialects.postgresql import UUID
|
||
from sqlalchemy.orm import Mapped, mapped_column, relationship
|
||
|
||
from app.models.base import Base
|
||
|
||
|
||
class Task(Base):
|
||
__tablename__ = "tasks"
|
||
|
||
id: Mapped[uuid.UUID] = mapped_column(
|
||
UUID(as_uuid=True), primary_key=True, default=uuid.uuid4,
|
||
)
|
||
|
||
# ---- 物理外键（关联本库 products） ----
|
||
product_id: Mapped[uuid.UUID] = mapped_column(
|
||
UUID(as_uuid=True), ForeignKey("products.id"), nullable=False, comment="所属产品ID",
|
||
)
|
||
|
||
# ---- 物理外键（自引用：无限嵌套父子任务） ----
|
||
parent_task_id: Mapped[uuid.UUID | None] = mapped_column(
|
||
UUID(as_uuid=True), ForeignKey("tasks.id"), nullable=True, index=True, comment="父任务ID",
|
||
)
|
||
|
||
task_name: Mapped[str] = mapped_column(
|
||
String(200), nullable=False, comment="任务名称",
|
||
)
|
||
|
||
# ---- 逻辑外键（关联老系统用户表，仅存储 ID，无物理约束） ----
|
||
assignee_id: Mapped[str | None] = mapped_column(
|
||
String(64), nullable=True, comment="负责人ID(逻辑外键→老系统)",
|
||
)
|
||
|
||
status: Mapped[str] = mapped_column(
|
||
String(50), nullable=False, default="pending", comment="任务状态",
|
||
)
|
||
|
||
notify_parent_on_complete: Mapped[bool] = mapped_column(
|
||
Boolean, default=False, comment="完成后是否通知父任务",
|
||
)
|
||
|
||
created_at: Mapped[datetime] = mapped_column(
|
||
DateTime(timezone=True), default=lambda: datetime.now(timezone.utc), comment="创建时间",
|
||
)
|
||
|
||
# ---- 关系 ----
|
||
product: Mapped["Product"] = relationship("Product", lazy="selectin")
|
||
parent_task: Mapped["Task | None"] = relationship(
|
||
"Task", remote_side="Task.id", back_populates="child_tasks", lazy="selectin",
|
||
)
|
||
child_tasks: Mapped[list["Task"]] = relationship(
|
||
"Task", back_populates="parent_task", lazy="selectin",
|
||
)
|
||
|
||
def __repr__(self) -> str:
|
||
return f"<Task {self.task_name}>"
|