/**
* Delete news by id
*
* @param idNews
* @return true when the operation was successful, otherwise false
* @throws ServiceException
*/
@Transactional(rollbackFor = ServiceException.class)
@Override
public boolean deleteNews(int idNews) throws ServiceException {
boolean relationDeletedIsSuccessA = newsService.deleteRelationForAuthorAndNewsByNews(idNews);
boolean relationDeletedIsSuccessT = newsService.deleteRelationForTagAndNewsByNews(idNews);
boolean deletedNewsIsSuccess = newsService.deleteNews(idNews);
return deletedNewsIsSuccess && relationDeletedIsSuccessA && relationDeletedIsSuccessT;
}
/**
* change tag in news
*
* @param idNews
* @param tags
* @return true when the operation was successful, otherwise false
* @throws ServiceException
*/
@Transactional(rollbackFor = ServiceException.class)
@Override
public boolean editRelationsForTagAndNews(int idNews, List<Integer> tags)
throws ServiceException {
newsService.deleteRelationForTagAndNewsByNews(idNews);
if (tags != null) {
for (Integer tag : tags) {
newsService.addRelationForTagAndNews(idNews, tag);
}
}
return true;
}
/**
* Add news with author and tags
*
* @param news
* @param author
* @param tags
* @return newsId
* @throws ServiceException
*/
@Transactional(rollbackFor = ServiceException.class)
@Override
public int addNews(News news, Author author, List<Integer> tags) throws ServiceException {
int idNews =
newsService.addNews(
news.getShortText(), news.getFullText(), news.getTitle(), news.getCreationDate());
newsService.addRelationForAuthorAndNews(idNews, author.getAuthorId());
if (tags != null) {
for (Integer tag : tags) {
newsService.addRelationForTagAndNews(idNews, tag);
}
}
return idNews;
}
/**
* Add new tag in news
*
* @param idNews
* @param tagName
* @return true when the operation was successful, otherwise false
* @throws ServiceException
*/
@Transactional(rollbackFor = ServiceException.class)
@Override
public boolean addTag(int idNews, String tagName) throws ServiceException {
int id = tagService.addTag(tagName);
boolean relationAddedIsSuccess = newsService.addRelationForTagAndNews(idNews, id);
return id != 0 && relationAddedIsSuccess;
}
/**
* Get list of all news
*
* @param currentIndex
* @param filter
* @param countNewsOfPage
* @return List of news
* @throws ServiceException
*/
@Transactional(rollbackFor = ServiceException.class)
@Override
public List<News> getAllNewsForPage(int currentIndex, FilterForm filter, int countNewsOfPage)
throws ServiceException {
return newsService.getAllNewsForPage(
currentIndex * countNewsOfPage - 2, currentIndex * countNewsOfPage, filter);
}
/**
* Delete author by id
*
* @param idAuthor
* @return true when the operation was successful, otherwise false
* @throws ServiceException
*/
@Transactional(rollbackFor = ServiceException.class)
@Override
public boolean deleteAuthor(int idAuthor) throws ServiceException {
boolean relationDeletedIsSuccess = newsService.deleteRelationForAuthorAndNewsByAuthor(idAuthor);
boolean authorDeletedIsSuccess = authorService.deleteAuthor(idAuthor);
return authorDeletedIsSuccess && relationDeletedIsSuccess;
}
/**
* Adding author in news
*
* @param idNews
* @param nameOfAuthor
* @return true when the operation was successful, otherwise false
* @throws ServiceException
*/
@Transactional(rollbackFor = ServiceException.class)
@Override
public boolean addAuthor(int idNews, String nameOfAuthor) throws ServiceException {
int id = authorService.addAuthorByName(nameOfAuthor);
boolean relationAddedIsSuccess = newsService.addRelationForAuthorAndNews(idNews, id);
return id != 0 && relationAddedIsSuccess;
}
