Feature/film

README.md

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+[![Review Assignment Due Date](https://classroom.github.com/assets/deadline-readme-button-22041afd0340ce965d47ae6ef1cefeee28c7c493a6346c4f15d667ab976d596c.svg)](https://classroom.github.com/a/_uV8Mn8f)
 # 📘 Projektarbete: JPA + Hibernate med GitHub-flöde
 
 Projektet genomförs som antingen en Java CLI-applikation eller med hjälp av JavaFX om ni vill ha ett grafiskt gränssnitt.

src/main/java/Director.java

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+import jakarta.persistence.*;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+@Entity
+public class Director {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @OneToMany(mappedBy = "director")
+    private Set<Film> films = new HashSet<>();
+
+    private String name;
+    private String country;
+    private int birthYear;
+    @Column(nullable = true)
+    private Integer yearOfDeath;
+
+    public Set<Film> getFilms() {
+        return films;
+    }
+
+    public void setFilms(Set<Film> films) {
+        this.films = films;
+    }
+
+    public Integer getYearOfDeath() {
+        return yearOfDeath;
+    }
+
+    public void setYearOfDeath(Integer yearOfDeath) {
+        this.yearOfDeath = yearOfDeath;
+    }
+
+    public int getBirthYear() {
+        return birthYear;
+    }
+
+    public void setBirthYear(int birthYear) {
+        this.birthYear = birthYear;
+    }
+
+    public String getCountry() {
+        return country;
+    }
+
+    public void setCountry(String country) {
+        this.country = country;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+}
+
+

src/main/java/Film.java

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+import jakarta.persistence.*;
+
+import java.util.List;
+
+@Entity
+public class Film {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private String title;
+    @ManyToOne
+    @JoinColumn(name = "director_id")
+    private Director director;
+
+    public Director getDirector() {
+        return director;
+    }
+
+    public void setDirector(Director director) {
+        this.director = director;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    //Lägg till en ny film
+    public static void addFilm(EntityManager em, String title, Director director) {
+        Film film = new Film();
+        film.setTitle(title);
+        film.setDirector(director);
+        em.persist(film);
+        System.out.println("Film tillagd: " + title);
+    }
+    //Hämta alla filmer
+    public static List<Film> getAllFilms(EntityManager em) {
+        return em.createQuery("FROM Film", Film.class).getResultList();
+    }
+
+    //Hämta filmer regisserade av en viss regissör
+    public static List<Film> getFilmsByDirector(EntityManager em, Director director) {
+        return em.createQuery("FROM Film f WHERE f.director = :director", Film.class)
+            .setParameter("director", director)
+            .getResultList();
+    }
+
+
+}

src/main/java/Main.java

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+import jakarta.persistence.Entity;
+import jakarta.persistence.EntityManagerFactory;
+import jakarta.persistence.Persistence;
+import jakarta.persistence.PersistenceConfiguration;
+import org.hibernate.jpa.HibernatePersistenceConfiguration;
+
+import java.util.List;
+
+public class Main {
+        public static void main(String[] args) {
+
+
+            final PersistenceConfiguration cfg = new HibernatePersistenceConfiguration("emf")
+                .jdbcUrl("jdbc:mysql://localhost:3306/film_database")
+                .jdbcUsername("root")
+                .jdbcPassword("root")
+                .property("hibernate.hbm2ddl.auto", "update")
+                .property("hibernate.show_sql", "true")
+                .property("hibernate.format_sql", "true")
+                .property("hibernate.highlight_sql", "true")
+                .managedClasses(Film.class, Director.class);
+            try (EntityManagerFactory emf = cfg.createEntityManagerFactory()) {
+                emf.runInTransaction(em -> {
+                    //Skapa regissör för test
+                    Director director = new Director();
+                    director.setName("Christopher Bolan");
+                    director.setCountry("United States");
+                    director.setBirthYear(1970);
+                    em.persist(director);
+
+                    //Testa att lägga till filmer
+                    Film.addFilm(em, "The Dirk Knight", director);
+                    Film.addFilm(em, "Inception", director);
+
+                    //Testa att hämta alla filmer
+                    System.out.println("\nAlla filmer:");
+                    List<Film> films = Film.getAllFilms(em);
+                    films.forEach(film -> System.out.println(film.getTitle()));
+
+                    //Testa att hämta filmer av en viss regissör
+                    System.out.println("\nAlla filmer av regissör:");
+                    List<Film> filmsByDirector = Film.getFilmsByDirector(em, director);
+                    filmsByDirector.forEach(film -> System.out.println(film.getTitle()));
+
+                    //If no Films in database, add some
+//                    if (em.createQuery("select count(o) from Film o", Long.class)
+//                        .getSingleResult() == 0) {
+//                        Film film1 = new Film();
+//                        em.persist(film1);
+//                        em.flush();
+//                        Film film2 = new Film();
+//                        em.persist(film2);
+//                    }
+//                    System.out.println("==== Using select query, N + 1 ====");
+//                    em.createQuery("from Film", Film.class)
+//                        .getResultList().forEach(System.out::println);
+
+                });
+
+            }
+
+        }
+}