10 lines
395 B
SQL
10 lines
395 B
SQL
-- Prevent modification of spent value outside triggers which must adjust it exclusively
|
|
-- when new transfer records are inserted
|
|
CREATE TRIGGER enforceSpentImmutableOutsideTrigger
|
|
BEFORE UPDATE OF spent ON Credit
|
|
WHEN NOT EXISTS (SELECT * FROM __INTERNAL_TRIGGER_STACK)
|
|
BEGIN
|
|
SELECT RAISE(FAIL, "spent is set and adjusted automatically according to added Transfer records");
|
|
END;
|
|
|