32 lines
988 B
Python
32 lines
988 B
Python
from __future__ import annotations
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from datetime import datetime
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from uuid import UUID, uuid4
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from sqlalchemy import CheckConstraint, UniqueConstraint
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from sqlmodel import Field
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from app.core.time import utcnow
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from app.models.tenancy import TenantScoped
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class TaskDependency(TenantScoped, table=True):
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__tablename__ = "task_dependencies"
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__table_args__ = (
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UniqueConstraint(
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"task_id",
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"depends_on_task_id",
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name="uq_task_dependencies_task_id_depends_on_task_id",
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),
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CheckConstraint(
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"task_id <> depends_on_task_id",
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name="ck_task_dependencies_no_self",
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),
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)
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id: UUID = Field(default_factory=uuid4, primary_key=True)
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board_id: UUID = Field(foreign_key="boards.id", index=True)
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task_id: UUID = Field(foreign_key="tasks.id", index=True)
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depends_on_task_id: UUID = Field(foreign_key="tasks.id", index=True)
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created_at: datetime = Field(default_factory=utcnow)
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