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Replace _enum_exists() helper (which had connection context issues in Alembic) with PostgreSQL DO $$ BEGIN ... EXCEPTION WHEN duplicate_object THEN NULL; END $$ blocks, which are truly idempotent regardless of transaction state. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
112 lines
5.7 KiB
Python
112 lines
5.7 KiB
Python
"""Phase 9: Ownership & Revalidation Queue
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Revision ID: b035ownerq
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Revises: b034dlm
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Create Date: 2026-05-19
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"""
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from typing import Union
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects import postgresql
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revision: str = "b035ownerq"
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down_revision: Union[str, None] = "b034dlm"
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branch_labels = None
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depends_on = None
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def _table_exists(table_name: str) -> bool:
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conn = op.get_bind()
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return conn.dialect.has_table(conn, table_name)
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def upgrade() -> None:
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# ── Enums (idempotent via DO/EXCEPTION) ──────────────────────────────────
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op.execute("""
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DO $$ BEGIN
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CREATE TYPE queue_priority AS ENUM ('critical', 'high', 'medium', 'low');
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EXCEPTION WHEN duplicate_object THEN NULL;
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END $$;
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""")
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op.execute("""
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DO $$ BEGIN
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CREATE TYPE queue_status AS ENUM ('pending', 'in_progress', 'completed', 'dismissed');
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EXCEPTION WHEN duplicate_object THEN NULL;
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END $$;
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""")
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op.execute("""
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DO $$ BEGIN
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CREATE TYPE queue_reason AS ENUM (
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'validation_expired', 'infra_change', 'osint_alert',
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'mitre_update', 'rule_modified', 'low_confidence', 'manual');
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EXCEPTION WHEN duplicate_object THEN NULL;
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END $$;
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""")
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# ── technique_ownerships ─────────────────────────────────────────────────
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if not _table_exists("technique_ownerships"):
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op.create_table(
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"technique_ownerships",
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sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
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sa.Column("technique_id", postgresql.UUID(as_uuid=True),
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sa.ForeignKey("techniques.id", ondelete="CASCADE"), nullable=False, unique=True),
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sa.Column("owner_id", postgresql.UUID(as_uuid=True),
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sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
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sa.Column("backup_owner_id", postgresql.UUID(as_uuid=True),
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sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
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sa.Column("team", sa.String(200), nullable=True),
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sa.Column("notes", sa.Text, nullable=True),
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sa.Column("assigned_at", sa.DateTime, nullable=True),
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sa.Column("assigned_by", postgresql.UUID(as_uuid=True),
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sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
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sa.Column("created_at", sa.DateTime, server_default=sa.func.now()),
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sa.Column("updated_at", sa.DateTime, server_default=sa.func.now(), onupdate=sa.func.now()),
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)
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op.create_index("ix_techown_owner_id", "technique_ownerships", ["owner_id"])
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op.create_index("ix_techown_technique_id", "technique_ownerships", ["technique_id"])
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# ── revalidation_queue_items ──────────────────────────────────────────────
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if not _table_exists("revalidation_queue_items"):
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op.create_table(
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"revalidation_queue_items",
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sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
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sa.Column("technique_id", postgresql.UUID(as_uuid=True),
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sa.ForeignKey("techniques.id", ondelete="CASCADE"), nullable=True),
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sa.Column("detection_asset_id", postgresql.UUID(as_uuid=True),
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sa.ForeignKey("detection_assets.id", ondelete="CASCADE"), nullable=True),
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sa.Column("priority", sa.Enum("critical", "high", "medium", "low",
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name="queue_priority", create_type=False),
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nullable=False, server_default="medium"),
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sa.Column("reason", sa.Enum("validation_expired", "infra_change", "osint_alert",
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"mitre_update", "rule_modified", "low_confidence", "manual",
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name="queue_reason", create_type=False),
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nullable=False),
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sa.Column("reason_detail", sa.Text, nullable=True),
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sa.Column("status", sa.Enum("pending", "in_progress", "completed", "dismissed",
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name="queue_status", create_type=False),
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nullable=False, server_default="pending"),
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sa.Column("assigned_to", postgresql.UUID(as_uuid=True),
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sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
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sa.Column("due_date", sa.DateTime, nullable=True),
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sa.Column("created_at", sa.DateTime, server_default=sa.func.now()),
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sa.Column("completed_at", sa.DateTime, nullable=True),
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sa.Column("dismissed_at", sa.DateTime, nullable=True),
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sa.Column("completed_by", postgresql.UUID(as_uuid=True),
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sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
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sa.Column("extra", postgresql.JSONB, nullable=True),
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)
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op.create_index("ix_rqueue_status", "revalidation_queue_items", ["status"])
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op.create_index("ix_rqueue_priority", "revalidation_queue_items", ["priority"])
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op.create_index("ix_rqueue_assigned_to", "revalidation_queue_items", ["assigned_to"])
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op.create_index("ix_rqueue_technique_id", "revalidation_queue_items", ["technique_id"])
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op.create_index("ix_rqueue_asset_id", "revalidation_queue_items", ["detection_asset_id"])
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def downgrade() -> None:
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op.drop_table("revalidation_queue_items")
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op.drop_table("technique_ownerships")
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op.execute("DROP TYPE IF EXISTS queue_reason")
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op.execute("DROP TYPE IF EXISTS queue_status")
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op.execute("DROP TYPE IF EXISTS queue_priority")
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