Удаление работает

src/main/java/ip/labwork/shop/model/Component.java

@@ -8,15 +8,17 @@ import java.util.List;
 import java.util.Objects;
 
 @Entity
+@Table(name = "components")
 public class Component {
     @Id
     @GeneratedValue(strategy = GenerationType.AUTO)
     private Long id;
-    @Column()
+    @Column(name = "name")
     private String componentName;
+    @Column(name = "price")
     private Integer price;
 
-    @OneToMany(mappedBy = "component", cascade = CascadeType.ALL)
+    @OneToMany(mappedBy = "component", cascade = CascadeType.ALL, fetch = FetchType.EAGER)
     @JsonIgnore
     private List<ProductComponents> products;
 

src/main/java/ip/labwork/shop/model/Order.java

@@ -13,7 +13,9 @@ public class Order {
     @Id
     @GeneratedValue(strategy = GenerationType.AUTO)
     private Long id;
+    @Column(name = "date")
     private Date date;
+    @Column(name = "price")
     private Integer price;
     @OneToMany(mappedBy = "order", cascade = CascadeType.ALL, fetch = FetchType.EAGER)
     private List<OrderProducts> products;

src/main/java/ip/labwork/shop/model/OrderProducts.java

@@ -4,6 +4,7 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 import jakarta.persistence.*;
 
 @Entity
+@Table(name = "order_product")
 public class OrderProducts {
     @EmbeddedId
     private OrderProductsKey id;
@@ -16,6 +17,7 @@ public class OrderProducts {
     @JoinColumn(name = "order_id")
     @JsonIgnore
     private Order order;
+    @Column(name = "count")
     private Integer count;
 
     public OrderProducts() {

src/main/java/ip/labwork/shop/model/Product.java

@@ -8,17 +8,20 @@ import java.util.List;
 import java.util.Objects;
 
 @Entity
+@Table(name = "products")
 public class Product {
     @Id
     @GeneratedValue(strategy = GenerationType.AUTO)
     private Long id;
+    @Column(name = "name")
     private String productName;
+    @Column(name = "price")
     private Integer price;
 
     @OneToMany(mappedBy = "product", cascade = CascadeType.ALL, fetch = FetchType.EAGER)
     private List<ProductComponents> components;
 
-    @OneToMany(mappedBy = "product", cascade = CascadeType.ALL)
+    @OneToMany(mappedBy = "product", cascade = CascadeType.ALL, fetch = FetchType.EAGER)
     @JsonIgnore
     private List<OrderProducts> orders;
 

src/main/java/ip/labwork/shop/model/ProductComponents.java

@@ -4,6 +4,7 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 import jakarta.persistence.*;
 
 @Entity
+@Table(name = "product_component")
 public class ProductComponents {
     @EmbeddedId
     private ProductComponentsKey id;
@@ -16,6 +17,7 @@ public class ProductComponents {
     @JoinColumn(name = "product_id")
     @JsonIgnore
     private Product product;
+    @Column(name = "count")
     private Integer count;
 
     public ProductComponents() {

src/main/java/ip/labwork/shop/service/ComponentService.java

@@ -1,6 +1,9 @@
 package ip.labwork.shop.service;
 
 import ip.labwork.shop.model.Component;
+import ip.labwork.shop.model.OrderProducts;
+import ip.labwork.shop.model.Product;
+import ip.labwork.shop.model.ProductComponents;
 import jakarta.persistence.EntityManager;
 import jakarta.persistence.EntityNotFoundException;
 import jakarta.persistence.PersistenceContext;
@@ -67,11 +70,19 @@ public class ComponentService {
     @Transactional
     public Component deleteComponent(Long id) {
         final Component currentComponent = findComponent(id);
+        int size = currentComponent.getProducts().size();
+        for (int i = 0; i < size; i++) {
+            ProductComponents temp = currentComponent.getProducts().get(0);
+            temp.getComponent().removeProduct(temp);
+            temp.getProduct().removeComponent(temp);
+            em.remove(temp);
+        }
         em.remove(currentComponent);
         return currentComponent;
     }
     @Transactional
     public void deleteAllComponent() {
+        em.createQuery("delete from ProductComponents").executeUpdate();
         em.createQuery("delete from Component").executeUpdate();
     }
 }

src/main/java/ip/labwork/shop/service/ProductService.java

@@ -1,6 +1,7 @@
 package ip.labwork.shop.service;
 
 import ip.labwork.shop.model.Component;
+import ip.labwork.shop.model.OrderProducts;
 import ip.labwork.shop.model.Product;
 import ip.labwork.shop.model.ProductComponents;
 import jakarta.persistence.EntityManager;
@@ -96,6 +97,13 @@ public class ProductService {
             temp.getProduct().removeComponent(temp);
             em.remove(temp);
         }
+        int ordSize = currentProduct.getOrders().size();
+        for (int i = 0; i < ordSize; i++){
+            OrderProducts temp = currentProduct.getOrders().get(0);
+            temp.getProduct().removeOrder(temp);
+            temp.getOrder().removeProducts(temp);
+            em.remove(temp);
+        }
         em.remove(currentProduct);
         return currentProduct;
     }
@@ -103,6 +111,7 @@ public class ProductService {
     @Transactional
     public void deleteAllProduct() {
         em.createQuery("delete from ProductComponents").executeUpdate();
+        em.createQuery("delete from OrderProducts ").executeUpdate();
         em.createQuery("delete from Product").executeUpdate();
     }