feat: service category change rank fix

services/service.py

@@ -130,14 +130,21 @@ class ServiceService(BaseService):
             service = await (self.session.get(Service, raw_service.id))
             if not service:
                 return ServiceUpdateResponse(ok=False, message="Услуга не найдена")
-
+            prev_category_id = service.category_id
+            new_category_id = request.data.category.id
             service_dict = raw_service.dict()
             service_dict['category_id'] = raw_service.category.id
             del service_dict['category']
             del service_dict['price_ranges']
             del service_dict['category_prices']
             del service_dict['is_placeholder']
-
+            if prev_category_id != new_category_id:
+                latest_rank = await self.get_latest_rank_in_category(new_category_id, ServiceType(raw_service.service_type))
+                if not latest_rank:
+                    latest_rank = middle(Bucket.BUCEKT_0)
+                else:
+                    latest_rank = lexorank.parse(latest_rank)
+                service_dict['rank'] = str(latest_rank.next())
             await self.session.execute(
                 update(Service)
                 .where(Service.id == raw_service.id)