50 lines
1.6 KiB
Python
50 lines
1.6 KiB
Python
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"""workplan projection retirement (STATE-WP-0083-T03)
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A forge-derived projection must be able to say that a record no longer derives
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from the forge. It cannot say so by deleting the row: progress events, tasks,
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decisions and review contracts reference workplans with ON DELETE RESTRICT, and
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those hub-native records must survive (ADR-010 decision 4, ADR-012 decision 7 as
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amended 2026-08-25).
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Nor can it say so through `status`. A workplan that is `archived` was closed by
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its owner; one that no longer derives is a different fact, and overloading the
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same field would destroy the distinction exactly where it matters.
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Revision ID: d1a2b3c4e5f6
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Revises: c9e5a1b3d7f2
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"""
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from alembic import op
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import sqlalchemy as sa
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revision = "d1a2b3c4e5f6"
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down_revision = "c9e5a1b3d7f2"
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branch_labels = None
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depends_on = None
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def upgrade() -> None:
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op.add_column(
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"workplans",
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sa.Column("projection_retired_at", sa.DateTime(timezone=True), nullable=True),
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)
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op.add_column(
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"workplans",
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sa.Column("projection_retired_reason", sa.String(length=255), nullable=True),
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)
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op.add_column(
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"workplans",
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sa.Column("derived_from_commit", sa.String(length=40), nullable=True),
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)
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op.create_index(
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"ix_workplans_projection_retired_at",
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"workplans",
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["projection_retired_at"],
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)
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def downgrade() -> None:
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op.drop_index("ix_workplans_projection_retired_at", table_name="workplans")
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op.drop_column("workplans", "derived_from_commit")
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op.drop_column("workplans", "projection_retired_reason")
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op.drop_column("workplans", "projection_retired_at")
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