-- Repair installations that still have the legacy sag_sager status constraint.
-- The case module manages its allowed statuses in settings; the database only
-- guarantees that a case status is present.
DO $$
DECLARE
    constraint_row RECORD;
BEGIN
    FOR constraint_row IN
        SELECT c.conname
        FROM pg_constraint c
        JOIN pg_class t ON t.oid = c.conrelid
        JOIN pg_namespace n ON n.oid = t.relnamespace
        WHERE n.nspname = 'public'
          AND t.relname = 'sag_sager'
          AND c.contype = 'c'
          AND c.conname IN ('sag_sager_status_check', 'sag_sager_status_nonempty_check')
    LOOP
        EXECUTE format('ALTER TABLE public.sag_sager DROP CONSTRAINT IF EXISTS %I', constraint_row.conname);
    END LOOP;
END $$;

ALTER TABLE public.sag_sager
    ADD CONSTRAINT sag_sager_status_nonempty_check
    CHECK (length(trim(status)) > 0);