R524809
38 lines
1.9 KiB
PL/PgSQL
38 lines
1.9 KiB
PL/PgSQL
SET search_path TO atlas, public;
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-- 审核通过的规则只能由新版本替代；应用角色不能直接修改已经用于报价的运价。
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CREATE FUNCTION guard_reviewed_logistics_mutation() RETURNS trigger LANGUAGE plpgsql SET search_path = atlas, public AS $$
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DECLARE
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card_id UUID;
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BEGIN
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IF TG_TABLE_NAME='logistics_rate_cards' THEN
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card_id := OLD.id;
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ELSIF TG_TABLE_NAME IN ('logistics_product_types','logistics_transport_methods') THEN
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IF TG_OP='DELETE' THEN card_id := OLD.rate_card_id;
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ELSE card_id := NEW.rate_card_id; END IF;
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ELSE
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IF TG_OP='DELETE' THEN
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SELECT rate_card_id INTO card_id FROM logistics_product_types WHERE id=OLD.product_type_id;
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ELSE
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SELECT rate_card_id INTO card_id FROM logistics_product_types WHERE id=NEW.product_type_id;
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END IF;
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END IF;
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IF card_id IS NOT NULL THEN
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PERFORM 1 FROM logistics_rate_cards WHERE id=card_id FOR SHARE;
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IF EXISTS (SELECT 1 FROM logistics_rate_card_reviews WHERE rate_card_id=card_id) THEN
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RAISE EXCEPTION '已审核的物流费率不可改写，请建立新版本' USING ERRCODE='23514';
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END IF;
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END IF;
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IF TG_OP='DELETE' THEN RETURN OLD; END IF;
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RETURN NEW;
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END $$;
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CREATE TRIGGER reviewed_card_immutable BEFORE UPDATE OR DELETE ON logistics_rate_cards
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FOR EACH ROW EXECUTE FUNCTION guard_reviewed_logistics_mutation();
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CREATE TRIGGER reviewed_type_immutable BEFORE INSERT OR UPDATE OR DELETE ON logistics_product_types
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FOR EACH ROW EXECUTE FUNCTION guard_reviewed_logistics_mutation();
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CREATE TRIGGER reviewed_method_immutable BEFORE INSERT OR UPDATE OR DELETE ON logistics_transport_methods
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FOR EACH ROW EXECUTE FUNCTION guard_reviewed_logistics_mutation();
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CREATE TRIGGER reviewed_rule_immutable BEFORE INSERT OR UPDATE OR DELETE ON logistics_rate_rules
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FOR EACH ROW EXECUTE FUNCTION guard_reviewed_logistics_mutation();
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