Files
state-hub/api/models/task.py

60 lines
2.2 KiB
Python

import enum
import uuid
from datetime import date
from sqlalchemy import Boolean, Date, Enum, ForeignKey, String, Text
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import Mapped, mapped_column, relationship
from api.models.base import Base, TimestampMixin, new_uuid
class TaskStatus(str, enum.Enum):
wait = "wait"
todo = "todo"
progress = "progress"
done = "done"
cancel = "cancel"
class TaskPriority(str, enum.Enum):
low = "low"
medium = "medium"
high = "high"
critical = "critical"
class Task(Base, TimestampMixin):
__tablename__ = "tasks"
id: Mapped[uuid.UUID] = mapped_column(
UUID(as_uuid=True), primary_key=True, default=new_uuid
)
workstream_id: Mapped[uuid.UUID] = mapped_column(
UUID(as_uuid=True), ForeignKey("workstreams.id", ondelete="RESTRICT"), nullable=False, index=True
)
title: Mapped[str] = mapped_column(String(255), nullable=False)
description: Mapped[str | None] = mapped_column(Text, nullable=True)
status: Mapped[TaskStatus] = mapped_column(
Enum(TaskStatus), nullable=False, default=TaskStatus.todo
)
priority: Mapped[TaskPriority] = mapped_column(
Enum(TaskPriority), nullable=False, default=TaskPriority.medium
)
assignee: Mapped[str | None] = mapped_column(String(100), nullable=True)
due_date: Mapped[date | None] = mapped_column(Date, nullable=True)
blocking_reason: Mapped[str | None] = mapped_column(Text, nullable=True)
needs_human: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False, index=True)
intervention_note: Mapped[str | None] = mapped_column(Text, nullable=True)
parent_task_id: Mapped[uuid.UUID | None] = mapped_column(
UUID(as_uuid=True), ForeignKey("tasks.id", ondelete="SET NULL"), nullable=True
)
workstream: Mapped["Workstream"] = relationship("Workstream", back_populates="tasks") # noqa: F821
subtasks: Mapped[list["Task"]] = relationship(
"Task", foreign_keys=[parent_task_id], lazy="selectin"
)
progress_events: Mapped[list["ProgressEvent"]] = relationship( # noqa: F821
"ProgressEvent", back_populates="task", lazy="selectin"
)