68 lines
1.9 KiB
PL/PgSQL
68 lines
1.9 KiB
PL/PgSQL
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-- Shop Unit of Measurement
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CREATE OR REPLACE FUNCTION before_insert_Shop_Unit_Measurement()
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RETURNS TRIGGER AS $$
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BEGIN
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IF NEW.created_on IS NULL THEN
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NEW.created_on = CURRENT_TIMESTAMP;
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END IF;
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IF NEW.created_by IS NULL THEN
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NEW.created_by = CURRENT_USER;
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END IF;
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql;
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CREATE OR REPLACE TRIGGER tri_before_insert_Shop_Unit_Measurement
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BEFORE INSERT ON Shop_Unit_Measurement
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FOR EACH ROW
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EXECUTE FUNCTION before_insert_Shop_Unit_Measurement();
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CREATE OR REPLACE FUNCTION before_update_Shop_Unit_Measurement()
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RETURNS TRIGGER AS $$
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BEGIN
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IF OLD.id_change_set IS NOT DISTINCT FROM NEW.id_change_set THEN
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RAISE EXCEPTION 'New change Set ID must be provided.'
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USING ERRCODE = '45000';
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END IF;
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INSERT INTO Shop_Unit_Measurement_Audit (
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id_unit_measurement,
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name_field,
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value_prev,
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value_new,
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id_change_set
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)
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-- Changed name_singular
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SELECT NEW.id_unit_measurement, 'name_singular', OLD.name_singular, NEW.name_singular, NEW.id_change_set
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WHERE NOT OLD.name_singular <=> NEW.name_singular
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UNION
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-- Changed name_plural
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SELECT NEW.id_unit_measurement, 'name_plural', OLD.name_plural, NEW.name_plural, NEW.id_change_set
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WHERE NOT OLD.name_plural <=> NEW.name_plural
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UNION
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-- Changed symbol
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SELECT NEW.id_unit_measurement, 'symbol', OLD.symbol, NEW.symbol, NEW.id_change_set
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WHERE NOT OLD.symbol <=> NEW.symbol
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UNION
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-- Changed is_base_unit
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SELECT NEW.id_unit_measurement, 'is_base_unit', OLD.is_base_unit, NEW.is_base_unit, NEW.id_change_set
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WHERE NOT OLD.is_base_unit <=> NEW.is_base_unit
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UNION
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-- Changed active
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SELECT NEW.id_unit_measurement, 'active', OLD.active, NEW.active, NEW.id_change_set
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WHERE NOT OLD.active <=> NEW.active
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;
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql;
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CREATE OR REPLACE TRIGGER tri_before_update_Shop_Unit_Measurement
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BEFORE UPDATE ON Shop_Unit_Measurement
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FOR EACH ROW
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EXECUTE FUNCTION before_update_Shop_Unit_Measurement();
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