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46878e8c0b
No longer Axum-based because filling out the request routes would have distracted from the purpose of the example.
31 lines
928 B
PL/PgSQL
31 lines
928 B
PL/PgSQL
-- We try to ensure every table has `created_at` and `updated_at` columns, which can help immensely with debugging
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-- and auditing.
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--
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-- While `created_at` can just be `default now()`, setting `updated_at` on update requires a trigger which
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-- is a lot of boilerplate. These two functions save us from writing that every time as instead we can just do
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--
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-- select payments.trigger_updated_at('<table name>');
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--
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-- after a `CREATE TABLE`.
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create or replace function payments.set_updated_at()
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returns trigger as
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$$
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begin
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NEW.updated_at = now();
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return NEW;
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end;
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$$ language plpgsql;
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create or replace function payments.trigger_updated_at(tablename regclass)
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returns void as
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$$
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begin
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execute format('CREATE TRIGGER set_updated_at
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BEFORE UPDATE
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ON %s
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FOR EACH ROW
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WHEN (OLD is distinct from NEW)
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EXECUTE FUNCTION payments.set_updated_at();', tablename);
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end;
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$$ language plpgsql;
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