Изменения

src/main/java/com/labwork1/app/student/model/Customer.java

@@ -1,8 +1,6 @@
 package com.labwork1.app.student.model;
 
 import jakarta.persistence.*;
-import org.hibernate.annotations.OnDelete;
-import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -17,7 +15,7 @@ public class Customer {
     private String login;
     @Column
     private String password;
-    @OneToMany(fetch = FetchType.EAGER, mappedBy = "customer")
+    @OneToMany(fetch = FetchType.EAGER, mappedBy = "customer", cascade = CascadeType.REMOVE)
     private List<Order> orders;
 
     public Customer() {

src/main/java/com/labwork1/app/student/model/Order.java

@@ -1,8 +1,6 @@
 package com.labwork1.app.student.model;
 
 import jakarta.persistence.*;
-import org.hibernate.annotations.OnDelete;
-import org.hibernate.annotations.OnDeleteAction;
 
 import java.sql.Date;
 import java.util.ArrayList;
@@ -39,6 +37,11 @@ public class Order {
             this.sessions.add(orderSession);
     }
 
+    public void removeSession(OrderSession orderSession){
+        if (sessions.contains(orderSession))
+            this.sessions.remove(orderSession);
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;

src/main/java/com/labwork1/app/student/model/Session.java

@@ -48,6 +48,11 @@ public class Session {
             this.orders.add(orderSession);
     }
 
+    public void removeOrder(OrderSession orderSession){
+        if (orders.contains(orderSession))
+            this.orders.remove(orderSession);
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;

src/main/java/com/labwork1/app/student/service/CustomerService.java

@@ -3,6 +3,7 @@ package com.labwork1.app.student.service;
 import com.labwork1.app.student.model.Customer;
 import com.labwork1.app.student.model.Order;
 import com.labwork1.app.student.model.OrderSession;
+import com.labwork1.app.student.model.Session;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.StringUtils;
@@ -56,40 +57,22 @@ public class CustomerService {
 
     @Transactional
     public Customer deleteCustomer(Long id) {
-//        final Customer currentCustomer = findCustomer(id);
-//        final List<Order> currentCustomerOrders = currentCustomer.getOrders();
-//
-//        for (int i = 0; i < currentCustomerOrders.size(); i++) {
-//            final Order temp = em.find(Order.class, currentCustomerOrders.get(i).getId());
-//            System.out.println(temp);
-//
-//            List<OrderSession> orderSessionList = em
-//                    .createQuery("select p from OrderSession p where p.id.orderId = " + temp.getId(),
-//                            OrderSession.class)
-//                    .getResultList();
-//            for (OrderSession x : orderSessionList) {
-//                System.out.println(x.getOrder());
-//                em.remove(x);
-//            }
-//            temp.getSessions().clear();
-//        }
-//        currentCustomer.getOrders().clear();
-//        em.remove(currentCustomer);
-//        return currentCustomer;
         final Customer currentCustomer = findCustomer(id);
-        int size = currentCustomer.getOrders().size();
+        final List<Order> currentCustomerOrders = currentCustomer.getOrders();
-        for (int i = 0; i < size; i++) {
+
-            Order temp = currentCustomer.getOrders().get(0);
+        for (int i = 0; i < currentCustomerOrders.size(); i++) {
-            temp.getSessions().remove(temp);
+            final Order currentOrder = em.find(Order.class, currentCustomerOrders.get(i).getId());
-            temp.getCustomer().removeOrder(temp);
+            List<OrderSession> orderSessionList = em
-            em.remove(temp);
+                    .createQuery("select p from OrderSession p where p.id.orderId = " + id, OrderSession.class)
-        }
+                    .getResultList();
-        int ordSize = currentCustomer.getOrders().size();
+            for (int j = 0; j < orderSessionList.size(); j++) {
-        for (int i = 0; i < ordSize; i++){
+                final Session currentSession = orderSessionList.get(j).getSession();
-            OrderCustomers temp = currentCustomer.getOrders().get(0);
+                currentOrder.getSessions().remove(orderSessionList.get(j));
-            temp.getCustomer().removeOrder(temp);
+                currentSession.getOrders().remove(orderSessionList.get(j));
-            temp.getOrder().removeCustomers(temp);
+                em.remove(orderSessionList.get(j));
-            em.remove(temp);
+                em.merge(currentSession);
+            }
+            em.merge(currentOrder);
         }
         em.remove(currentCustomer);
         return currentCustomer;

src/main/java/com/labwork1/app/student/service/OrderService.java

@@ -32,7 +32,7 @@ public class OrderService {
 
     @Transactional
     public Order addSession(Long id, Long session, Integer count) {
-        if (session <= 0) {
+        if (session <= 0 || count <= 0) {
             throw new IllegalArgumentException("addOrder empty fields");
         }
         final Order currentOrder = findOrder(id);

src/main/java/com/labwork1/app/student/service/SessionService.java

@@ -1,6 +1,7 @@
 package com.labwork1.app.student.service;
 
 import com.labwork1.app.student.model.Cinema;
+import com.labwork1.app.student.model.OrderSession;
 import com.labwork1.app.student.model.Session;
 import jakarta.persistence.EntityManager;
 import jakarta.persistence.EntityNotFoundException;
@@ -56,6 +57,13 @@ public class SessionService {
     @Transactional
     public Session deleteSession(Long id) {
         final Session currentSession = findSession(id);
+        int size = currentSession.getOrders().size();
+        for (int i = 0; i < size; i++) {
+            OrderSession temp = currentSession.getOrders().get(0);
+            temp.getSession().removeOrder(temp);
+            temp.getOrder().removeSession(temp);
+            em.remove(temp);
+        }
         em.remove(currentSession);
         return currentSession;
     }

src/test/java/com/labwork1/app/JpaCustomerTests.java

@@ -40,12 +40,12 @@ public class JpaCustomerTests {
         // 2 кино
         final Cinema cinema1 = cinemaService.addCinema("Меню");
         final Cinema cinema2 = cinemaService.addCinema("Аватар");
-        // 2 билета
+        // 2 сеанса
         final Session session1 = sessionService.addSession(300.0,
                 new Timestamp(System.currentTimeMillis()), cinema1.getId());
         final Session session2 = sessionService.addSession( 200.0,
                 new Timestamp(System.currentTimeMillis()), cinema1.getId());
-        // 2 билета у 1 кино
+        // проверка 2 сеанса у 1 кино
         Assertions.assertEquals(cinemaService
                 .findCinema(cinema1.getId()).getSessions().size(), 2);
         // 1 покупатель
@@ -55,6 +55,7 @@ public class JpaCustomerTests {
         final Order order1 = orderService.findOrder(order0.getId());
         Assertions.assertEquals(order0, order1);
 
+        // у клиента точно есть заказ?
         Assertions.assertEquals(customerService
                 .findCustomer(customer1.getId()).getOrders().size(), 1);
         // 0 заказов
@@ -62,26 +63,35 @@ public class JpaCustomerTests {
         Assertions.assertThrows(EntityNotFoundException.class, () -> orderService.findOrder(-1L));
         // 2 покупателя
         final Customer customer2 = customerService.addCustomer("Иннокентий", "Иванов");
-        // 3 билета
+        // 3 сеанса
         final Session session3 = sessionService.addSession(300.0,
                 new Timestamp(System.currentTimeMillis()), cinema2.getId());
         // 1 заказ
         final Order order2 = orderService
                 .addOrder(customerService.findCustomer(customer2.getId()));
-        // у заказа 2 билета
+        // у заказа 2 сеанса
         orderService.addSession(order2.getId(), session1.getId(), 2);
         orderService.addSession(order2.getId(), session2.getId(), 3);
-        // у заказа 1 билет
+        // у заказа 1 сеанс
         orderService.deleteSessionInOrder(order2.getId(), session2.getId());
+        // у заказа 0 сеансов
+        // осталось 2 сеанса
+        sessionService.deleteSession(session1.getId());
+        Assertions.assertEquals(sessionService.findAllSessions().size(), 2);
 
         Assertions.assertEquals(orderService
-                .findOrder(order2.getId()).getSessions().size(), 1);
+                .findOrder(order2.getId()).getSessions().size(), 0);
         // 2-ой покупатель удален
-        // 0 заказов
+        // 0 заказов после его удаления
+        Assertions.assertEquals(orderService.findAllOrders().size(), 1);
         customerService.deleteCustomer(customer2.getId());
-//        Assertions.assertThrows(EntityNotFoundException.class, () -> customerService.findCustomer(customer2.getId()));
+
-//        Assertions.assertThrows(EntityNotFoundException.class, () -> orderService.findOrder(order2.getId()));
+        Assertions.assertThrows(EntityNotFoundException.class, () -> customerService.findCustomer(customer2.getId()));
-//        Assertions.assertEquals(orderService.findAllOrders().size(), 0);
+        Assertions.assertThrows(EntityNotFoundException.class, () -> orderService.findOrder(order2.getId()));
+        Assertions.assertEquals(orderService.findAllOrders().size(), 0);
+
+        Assertions.assertEquals(sessionService.findSession(session3.getId()), session3);
+        cinemaService.deleteCinema(cinema2.getId());
     }
 
     /*@Test()