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feat(database): enhance podcast lifecycle management by adding temporary unpublishing during migration

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This commit is contained in:
Anish Sarkar 2026-06-12 03:35:49 +05:30
parent 72a7fe04b5
commit aba95e4faf
2 changed files with 72 additions and 7 deletions
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28
surfsense_backend/alembic/versions/158_evolve_podcasts_lifecycle.py
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@ -13,8 +13,34 @@ down_revision: str | None = "157"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None
PUBLICATION_NAME = "zero_publication"
def _drop_podcasts_from_zero_publication() -> None:
"""Temporarily unpublish podcasts while changing published columns."""
op.execute(
f"""
DO $$
BEGIN
IF EXISTS (
SELECT 1
FROM pg_publication_tables
WHERE pubname = '{PUBLICATION_NAME}'
AND schemaname = current_schema()
AND tablename = 'podcasts'
) THEN
ALTER PUBLICATION "{PUBLICATION_NAME}" DROP TABLE "podcasts";
END IF;
END
$$;
"""
)
def upgrade() -> None:
_drop_podcasts_from_zero_publication()
# Retype the status enum by swapping in a fresh type and casting existing
# rows. The legacy transient value 'generating' maps onto 'rendering'.
op.execute("ALTER TYPE podcast_status RENAME TO podcast_status_old;")
@ -57,6 +83,8 @@ def upgrade() -> None:
def downgrade() -> None:
_drop_podcasts_from_zero_publication()
op.execute("ALTER TABLE podcasts DROP COLUMN IF EXISTS error;")
op.execute("ALTER TABLE podcasts DROP COLUMN IF EXISTS duration_seconds;")
op.execute("ALTER TABLE podcasts DROP COLUMN IF EXISTS storage_key;")