speed up cars count query

encar_scraper/api/routes/cars.py

@@ -26,21 +26,28 @@ def list_cars(
     # Список автомобилей с пагинацией и фильтрами
     with persistence.session_scope() as session:
         query = select(Car)
+        count_query = select(func.count(Car.id))
 
         if brand:
             escaped_brand = brand.replace("%", r"\%").replace("_", r"\_")
-            query = query.where(Car.brand.ilike(f"%{escaped_brand}%", escape="\\"))
+            cond = Car.brand.ilike(f"%{escaped_brand}%", escape="\\")
+            query = query.where(cond)
+            count_query = count_query.where(cond)
         if model:
             escaped_model = model.replace("%", r"\%").replace("_", r"\_")
-            query = query.where(Car.model.ilike(f"%{escaped_model}%", escape="\\"))
+            cond = Car.model.ilike(f"%{escaped_model}%", escape="\\")
+            query = query.where(cond)
+            count_query = count_query.where(cond)
         if year_min is not None:
             query = query.where(Car.year >= year_min)
+            count_query = count_query.where(Car.year >= year_min)
         if year_max is not None:
             query = query.where(Car.year <= year_max)
+            count_query = count_query.where(Car.year <= year_max)
         if is_sold is not None:
             query = query.where(Car.is_sold == is_sold)
+            count_query = count_query.where(Car.is_sold == is_sold)
 
-        count_query = select(func.count()).select_from(query.subquery())
         total = session.execute(count_query).scalar() or 0
 
         offset = (page - 1) * per_page