25 lines
679 B
MySQL
25 lines
679 B
MySQL
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-- SPDX-FileCopyrightText: 2023 Louis Hollingworth <louis@hollingworth.nl>
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--
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-- SPDX-License-Identifier: AGPL-3.0-or-later
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-- Add up migration script here
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CREATE OR REPLACE FUNCTION manage_updated_at(_tbl regclass) RETURNS VOID AS $$
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BEGIN
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EXECUTE format('CREATE TRIGGER set_updated_at BEFORE UPDATE ON %s
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FOR EACH ROW EXECUTE PROCEDURE set_updated_at()', _tbl);
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END;
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$$ LANGUAGE plpgsql;
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CREATE OR REPLACE FUNCTION set_updated_at() RETURNS trigger AS $$
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BEGIN
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IF (
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NEW IS DISTINCT FROM OLD AND
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NEW.updated_at IS NOT DISTINCT FROM OLD.updated_at
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) THEN
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NEW.updated_at := NOW();
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END IF;
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql
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