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fix: ensure idempotency in alembic migrations by checking for existing columns and indexes before creation

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This commit is contained in:
Anish Sarkar 2026-05-10 22:45:26 +05:30
parent 319923fb40
commit 2c8828f60c
1 changed files with 16 additions and 9 deletions
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25
surfsense_backend/alembic/versions/136_new_chat_message_turn_id.py
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@ -36,15 +36,22 @@ depends_on: str | Sequence[str] | None = None
def upgrade() -> None: def upgrade() -> None:
op.add_column( bind = op.get_bind()
"new_chat_messages", inspector = sa.inspect(bind)
sa.Column("turn_id", sa.String(length=64), nullable=True), columns = {c["name"] for c in inspector.get_columns("new_chat_messages")}
) indexes = {i["name"] for i in inspector.get_indexes("new_chat_messages")}
op.create_index(
"ix_new_chat_messages_turn_id", if "turn_id" not in columns:
"new_chat_messages", op.add_column(
["turn_id"], "new_chat_messages",
) sa.Column("turn_id", sa.String(length=64), nullable=True),
)
if "ix_new_chat_messages_turn_id" not in indexes:
op.create_index(
"ix_new_chat_messages_turn_id",
"new_chat_messages",
["turn_id"],
)
def downgrade() -> None: def downgrade() -> None: