public void setPublisherToMedia(Publisher p, int mediaId) throws ServiceException {
EntityManagerFactory emf = EMFSingleton.getEMF();
EntityManager em = emf.createEntityManager();
mediaRepository = new Media2Repository();
mediaRepository.setEntityManager(em);
Media m = mediaRepository.getByID(mediaId);
if (m != null) {
m.setPublisher(p);
} else {
throw new ServiceException("The media doesn't exist.");
}
}
/* (non-Javadoc)
* @see com.m2i.formation.services.IMainService#addAuthorToMedia(com.m2i.formation.media.entities.Author, int)
*/
@Override
public void addAuthorToMedia(Author a, int mediaId) throws ServiceException {
EntityManagerFactory emf = EMFSingleton.getEMF();
EntityManager em = emf.createEntityManager();
mediaRepository = new Media2Repository();
mediaRepository.setEntityManager(em);
Media m = mediaRepository.getByID(mediaId);
if (m != null) {
if (!m.getAuthors().contains(a)) {
m.getAuthors().add(a);
mediaRepository.getTransaction();
mediaRepository.save(m);
mediaRepository.commit();
} else {
throw new ServiceException("Author already associated with the media.");
}
} else {
throw new ServiceException("The media doesn't exist.");
}
}