stacker.news/prisma/migrations/20220913173826_earn_function/migration.sql

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CREATE OR REPLACE FUNCTION earn(user_id INTEGER, earn_msats INTEGER, created_at TIMESTAMP(3),
type "EarnType", type_id INTEGER, rank INTEGER)
RETURNS void AS $$
DECLARE
BEGIN
PERFORM ASSERT_SERIALIZED();
-- insert into earn
INSERT INTO "Earn" (msats, "userId", created_at, type, "typeId", rank)
VALUES (earn_msats, user_id, created_at, type, type_id, rank);
-- give the user the sats
UPDATE users
SET msats = msats + earn_msats, "stackedMsats" = "stackedMsats" + earn_msats
WHERE id = user_id;
END;
$$ LANGUAGE plpgsql;