command7

src/main/java/com/example/library/demo/Menu.java

@@ -174,6 +174,7 @@ public void executeCommand() {
                             LocalDateTime todayDate = LocalDateTime.now();
                             LocalDateTime returnDate = todayDate.plusDays(7);
                             Issue issue = new Issue(todayDate,returnDate,student,bookIssue);
+                            libraryService.addIssue(issue);
                             student.addIssue(issue);
                             bookIssue.setQuantity(bookIssue.getQuantity()-1);
                             libraryService.addBook(bookIssue);
@@ -187,6 +188,28 @@ public void executeCommand() {
                     break;
                 case 7:
                     // Call listBooksByUsn method
+                    // Ask for student usn and check if already exists
+                    System.out.println("Enter student usn: ");
+                    String studentUsn2 = scanner.nextLine();
+
+                    Student student2;
+                    Optional<Student> studentOptional2 = libraryService.findStudentByUsn(studentUsn2);
+                    if (!studentOptional2.isPresent()) {
+                        System.out.println("Student with usn " + studentUsn2 + " not found.");
+                        break;
+                    } else {
+                        student2 = studentOptional2.get();
+                        List<Issue> studentIssues = student2.getIssues();
+                        if (studentIssues.isEmpty()) {
+                            System.out.println("Student " + student2.getName() + " has no issued books.");
+                        } else {
+                            System.out.println(student2.getName() + "'s issued books: ");
+                            System.out.println("Book Title          Student Name         Return date");
+                            for (Issue issue : studentIssues) {
+                                issue.printIssueInfo();
+                            }
+                        }
+                    }
                     break;
                 case 8:
                     System.out.println("Exiting program.");

src/main/java/com/example/library/demo/model/Issue.java

@@ -86,4 +86,8 @@ public boolean equals(Object o) {
     public int hashCode() {
         return Objects.hash(issueId, issueDate, returnDate, issueStudent, issueBook);
     }
+
+    public void printIssueInfo() {
+        System.out.printf("%-20s %-20s %-15s\n", issueBook.getTitle(), issueStudent.getName(), returnDate);
+    }
 }

src/main/java/com/example/library/demo/model/Student.java

@@ -13,7 +13,7 @@ public class Student {
     @Column(name = "student_name")
     private String name;
 
-    @OneToMany(mappedBy = "issueStudent", orphanRemoval = true)
+    @OneToMany(mappedBy = "issueStudent", cascade = CascadeType.ALL, fetch = FetchType.EAGER, orphanRemoval = true)
     private List<Issue> issues = new ArrayList<>();
 
     public Student() {

src/main/java/com/example/library/demo/service/LibraryService.java

@@ -82,6 +82,10 @@ public List<Book> findBooksByAuthor(Author author){
         return bookRepository.findAllByAuthor(author.getAuthorId());
     }
 
+    // Issue Repository
+    public void addIssue (Issue issue) {
+        issueRepository.save(issue);
+    }
     /*public List<Book> findByUsn(Student student){
         return bookRepository.findAllByUsn(student.getUsn());
     }*/