сумму починил ) готово

src/main/java/com/example/demo/orders/api/OrderController.java

@@ -9,6 +9,8 @@ import com.example.demo.order_lines.api.OrderLineDto;
 import com.example.demo.order_lines.model.OrderLineEntity;
 import com.example.demo.orders.model.OrderEntity;
 import com.example.demo.orders.service.OrderService;
+import com.example.demo.products.model.ProductEntity;
+import com.example.demo.products.service.ProductService;
 import com.example.demo.users.service.UserService;
 import jakarta.validation.Valid;
 
@@ -18,10 +20,13 @@ public class OrderController {
     private final OrderService orderService;
     private final UserService userService;
     private final ModelMapper modelMapper;
+    private final ProductService productService;
 
-    public OrderController(OrderService orderService, UserService userService, ModelMapper modelMapper) {
+    public OrderController(OrderService orderService, UserService userService, ModelMapper modelMapper,
+            ProductService productService) {
         this.orderService = orderService;
         this.userService = userService;
+        this.productService = productService;
         this.modelMapper = modelMapper;
     }
 
@@ -34,7 +39,9 @@ public class OrderController {
             OrderLineDto orderLineDto = new OrderLineDto();
             orderLineDto.setProductId(orderLineEntity.getProduct().getId());
             orderLineDto.setCount(orderLineEntity.getCount());
-            orderLineDto.setTotalPriceLine(orderLineEntity.getTotalPrice());
+            // Вычисляем общую цену строки заказа
+            Double totalPriceLine = orderLineEntity.getProduct().getPrice() * orderLineEntity.getCount();
+            orderLineDto.setTotalPriceLine(totalPriceLine);
             dto.addOrderLine(orderLineDto);
         }
         return dto;
@@ -48,6 +55,9 @@ public class OrderController {
         entity.getLines().clear();
         for (OrderLineDto lineDto : dto.getLines()) {
             OrderLineEntity orderLineEntity = modelMapper.map(lineDto, OrderLineEntity.class);
+            // Здесь нужно установить ProductEntity для OrderLineEntity
+            ProductEntity product = productService.get(lineDto.getProductId()); // Получаем продукт по его ID
+            orderLineEntity.setProduct(product); // Устанавливаем продукт для строки заказа
             entity.addOrderLine(orderLineEntity);
         }
         return entity;

src/main/java/com/example/demo/orders/model/OrderEntity.java

@@ -73,6 +73,7 @@ public class OrderEntity extends BaseEntity {
     }
 
     public Double calculateTotalOrderPrice() {
+        totalPrice = 0.0;
         for (OrderLineEntity orderLine : lines) {
             totalPrice += orderLine.getProduct().getPrice() * orderLine.getCount();
         }

src/main/java/com/example/demo/products/service/ProductService.java

@@ -33,6 +33,7 @@ public class ProductService {
     }
 
     public ProductEntity create(ProductEntity entity) {
+        entity.setPrice(entity.getPrice());
         return repository.create(entity);
     }