"""
SubTask model.
This module contains the SubTask SQLAlchemy model.
"""
from __future__ import annotations
from datetime import datetime
from sqlalchemy import (
TIMESTAMP,
Integer,
String,
Text,
)
from sqlalchemy.orm import (
Mapped,
mapped_column,
relationship,
)
from todowrite.core.associations import (
sub_tasks_commands,
sub_tasks_labels,
tasks_sub_tasks,
)
from todowrite.core.models.base import Base
from todowrite.core.timestamp_mixins import (
TimestampMixin,
)
[docs]
class SubTask(Base, TimestampMixin):
"""ToDoWrite SubTask model for hierarchical task management."""
__tablename__ = "sub_tasks"
# Primary key convention
id: Mapped[int] = mapped_column(
Integer, primary_key=True, autoincrement=True, nullable=False
)
# Model fields
title: Mapped[str] = mapped_column(String, nullable=False)
description: Mapped[str | None] = mapped_column(Text)
status: Mapped[str] = mapped_column(String, default="planned")
progress: Mapped[int | None] = mapped_column(Integer)
started_on: Mapped[datetime | None] = mapped_column(
TIMESTAMP, nullable=True
)
ended_on: Mapped[datetime | None] = mapped_column(TIMESTAMP, nullable=True)
# Metadata fields
owner: Mapped[str | None] = mapped_column(String)
severity: Mapped[str | None] = mapped_column(String)
work_type: Mapped[str | None] = mapped_column(String)
assignee: Mapped[str | None] = mapped_column(String)
# JSON fields for complex data
extra_data: Mapped[str | None] = mapped_column(Text)
# Relationships
labels: Mapped[list[Label]] = relationship(
"Label", secondary=sub_tasks_labels, back_populates="sub_tasks"
)
# belongs_to :tasks (through tasks_sub_tasks)
tasks: Mapped[list[Task]] = relationship(
"Task", secondary=tasks_sub_tasks, back_populates="sub_tasks"
)
# has_many :commands (through sub_tasks_commands)
commands: Mapped[list[Command]] = relationship(
"Command", secondary=sub_tasks_commands, back_populates="sub_tasks"
)