lemmy/migrations/2022-12-05-110642_registrat.../down.sql

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-- add back old registration columns
ALTER TABLE local_site
ADD COLUMN open_registration boolean NOT NULL DEFAULT TRUE;
ALTER TABLE local_site
ADD COLUMN require_application boolean NOT NULL DEFAULT TRUE;
-- regenerate their values
WITH subquery AS (
SELECT
registration_mode,
CASE WHEN registration_mode = 'closed' THEN
FALSE
ELSE
TRUE
END
FROM
local_site)
UPDATE
local_site
SET
open_registration = subquery.case
FROM
subquery;
WITH subquery AS (
SELECT
registration_mode,
CASE WHEN registration_mode = 'open' THEN
FALSE
ELSE
TRUE
END
FROM
local_site)
UPDATE
local_site
SET
require_application = subquery.case
FROM
subquery;
-- drop new column and type
ALTER TABLE local_site
DROP COLUMN registration_mode;
DROP TYPE registration_mode_enum;