lab5 refactoring

src/main/java/ru/ip/labs/labs/LabsApplication.java

@@ -5,8 +5,4 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
 public class LabsApplication {
-
-	public static void main(String[] args) {
-		SpringApplication.run(LabsApplication.class, args);
-	}
 }

src/main/java/ru/ip/labs/labs/films/controller/FilmController.java

@@ -32,17 +32,13 @@ public class FilmController {
 
     @PostMapping("")
     public FilmDTO createFilm(@RequestBody @Valid FilmDTO film) {
-        Film result = filmService.addFilm(film.getName());
-        filmService.updateActors(result.getId(), film.getFullNames());
-        return new FilmDTO(filmService.updateGenres(result.getId(), film.getGenre()));
+        return new FilmDTO(filmService.addFilm(film.getName(), film.getGenre(), film.getFullNames()));
     }
 
     @PatchMapping("/{id}")
     public FilmDTO updateFilm(@PathVariable Long id,
                               @RequestBody @Valid FilmDTO film) {
-        Film result = filmService.updateFilm(id, film.getName());
-        filmService.updateActors(result.getId(), film.getFullNames());
-        return new FilmDTO(filmService.updateGenres(result.getId(), film.getGenre()));
+        return new FilmDTO(filmService.updateFilm(id, film.getName(), film.getGenre(), film.getFullNames()));
     }
 
     @PatchMapping("/add_genre/{id}")

src/main/java/ru/ip/labs/labs/films/controller/FilmMvcController.java

@@ -49,16 +49,12 @@ public class FilmMvcController {
             model.addAttribute("errors", bindingResult.getAllErrors());
             return "films-catalog";
         }
-        Long filmId = id;
 
         if (id == null || id <= 0) {
-            Film result = filmService.addFilm(filmDTO.getName());
-            filmId = result.getId();
+            filmService.addFilm(filmDTO.getName(), filmDTO.getGenre(), filmDTO.getFullNames());
         } else {
-            filmService.updateFilm(id, filmDTO.getName());
+            filmService.updateFilm(id, filmDTO.getName(), filmDTO.getGenre(), filmDTO.getFullNames());
         }
-        filmService.updateGenres(filmId, filmDTO.getGenre());
-        filmService.updateActors(filmId, filmDTO.getFullNames());
         return "redirect:/film";
     }
 

src/main/java/ru/ip/labs/labs/films/service/FilmsService.java

@@ -36,6 +36,19 @@ public class FilmsService {
         return repo.save(film);
     }
 
+    @Transactional
+    public Film addFilm(String name, List<String> genres, List<String> fullNames) {
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("Student name is null or empty");
+        }
+
+        Film film = new Film(name);
+        Film result = repo.save(film);
+
+        updateGenres(result.getId(), genres);
+        return updateActors(film.getId(), fullNames);
+    }
+
     // фильмы по жанру
     // фильмы по актеру
 
@@ -149,6 +162,26 @@ public class FilmsService {
         return repo.save(currentFilm);
     }
 
+    @Transactional
+    public Film updateFilm(Long id, String name, List<String> genres, List<String> fullNames) {
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("Film name is null or empty");
+        }
+        final Optional<Film> currentFilmOpt = repo.findById(id);
+
+        if(currentFilmOpt.isEmpty()) {
+            return null;
+        }
+
+        final Film currentFilm = currentFilmOpt.get();
+
+        currentFilm.setName(name);
+        repo.save(currentFilm);
+
+        updateGenres(id, genres);
+        return updateActors(id, fullNames);
+    }
+
     @Transactional
     public Film deleteFilm(Long id) {
         final Optional<Film> currentFilm = repo.findById(id);