feat(pricing): 开发定价方案

packages/database/migrations/050_reviewed_logistics_immutable.sql

@@ -0,0 +1,37 @@
+SET search_path TO atlas, public;
+
+-- 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。
+CREATE FUNCTION guard_reviewed_logistics_mutation() RETURNS trigger LANGUAGE plpgsql SET search_path = atlas, public AS $$
+DECLARE
+    card_id UUID;
+BEGIN
+    IF TG_TABLE_NAME='logistics_rate_cards' THEN
+        card_id := OLD.id;
+    ELSIF TG_TABLE_NAME IN ('logistics_product_types','logistics_transport_methods') THEN
+        IF TG_OP='DELETE' THEN card_id := OLD.rate_card_id;
+        ELSE card_id := NEW.rate_card_id; END IF;
+    ELSE
+        IF TG_OP='DELETE' THEN
+            SELECT rate_card_id INTO card_id FROM logistics_product_types WHERE id=OLD.product_type_id;
+        ELSE
+            SELECT rate_card_id INTO card_id FROM logistics_product_types WHERE id=NEW.product_type_id;
+        END IF;
+    END IF;
+    IF card_id IS NOT NULL THEN
+        PERFORM 1 FROM logistics_rate_cards WHERE id=card_id FOR SHARE;
+        IF EXISTS (SELECT 1 FROM logistics_rate_card_reviews WHERE rate_card_id=card_id) THEN
+            RAISE EXCEPTION '已审核的物流费率不可改写，请建立新版本' USING ERRCODE='23514';
+        END IF;
+    END IF;
+    IF TG_OP='DELETE' THEN RETURN OLD; END IF;
+    RETURN NEW;
+END $$;
+
+CREATE TRIGGER reviewed_card_immutable BEFORE UPDATE OR DELETE ON logistics_rate_cards
+    FOR EACH ROW EXECUTE FUNCTION guard_reviewed_logistics_mutation();
+CREATE TRIGGER reviewed_type_immutable BEFORE INSERT OR UPDATE OR DELETE ON logistics_product_types
+    FOR EACH ROW EXECUTE FUNCTION guard_reviewed_logistics_mutation();
+CREATE TRIGGER reviewed_method_immutable BEFORE INSERT OR UPDATE OR DELETE ON logistics_transport_methods
+    FOR EACH ROW EXECUTE FUNCTION guard_reviewed_logistics_mutation();
+CREATE TRIGGER reviewed_rule_immutable BEFORE INSERT OR UPDATE OR DELETE ON logistics_rate_rules
+    FOR EACH ROW EXECUTE FUNCTION guard_reviewed_logistics_mutation();