@Override
public BookModel selectBook(int id) {
return create
.select(
BOOK.ID_BOOK,
BOOK.TITLE,
BOOK.SHORT_DESCRIPTION,
BOOK.DATE_PUBLISH,
PostgresDSL.arrayAgg(
concat(
AUTHOR.ID_AUTHOR,
val(","),
AUTHOR.FIRST_NAME,
val(","),
AUTHOR.SECOND_NAME))
.as("authors"))
.from(AUTHOR)
.join(AUTHOR_BOOK)
.on(AUTHOR_BOOK.ID_AUTHOR.equal(AUTHOR.ID_AUTHOR))
.join(BOOK)
.on(BOOK.ID_BOOK.equal(AUTHOR_BOOK.ID_BOOK))
.where(BOOK.STATUS.equal(true))
.and(BOOK.ID_BOOK.equal(id))
.groupBy(BOOK.ID_BOOK)
.fetchOneInto(BookModel.class);
}
@Override
public void updateBook(BookModel bookModel) {
create
.update(BOOK)
.set(BOOK.TITLE, bookModel.getTitle())
.set(BOOK.DATE_PUBLISH, bookModel.getDatePublish())
.set(BOOK.SHORT_DESCRIPTION, bookModel.getShortDescription())
.where(BOOK.ID_BOOK.equal(bookModel.getIdBook()))
.execute();
List<Integer> existsAuthors =
create
.select(AUTHOR_BOOK.ID_AUTHOR)
.from(AUTHOR_BOOK)
.where(AUTHOR_BOOK.ID_BOOK.equal(bookModel.getIdBook()))
.fetchInto(Integer.class);
logger.debug("Existing authors: " + existsAuthors);
List<Integer> newAuthors = new ArrayList<>();
List<Integer> authors = new ArrayList<>();
/** */
for (String idAuthor : bookModel.getAuthors()) {
int id = Integer.valueOf(idAuthor);
authors.add(id);
if (!existsAuthors.contains(id)) {
newAuthors.add(id);
}
}
existsAuthors.removeAll(authors);
logger.debug("New authors: " + newAuthors);
if (!newAuthors.isEmpty()) {
InsertValuesStep2<AuthorBookRecord, Integer, Integer> insertStep =
create.insertInto(AUTHOR_BOOK, AUTHOR_BOOK.ID_AUTHOR, AUTHOR_BOOK.ID_BOOK);
InsertValuesStep2<AuthorBookRecord, Integer, Integer> valuesStep = null;
for (Integer idAuthor : newAuthors) {
valuesStep = insertStep.values(idAuthor, bookModel.getIdBook());
}
valuesStep.execute();
}
logger.debug("Old authors: " + existsAuthors);
if (!existsAuthors.isEmpty()) {
create.delete(AUTHOR_BOOK).where(AUTHOR_BOOK.ID_AUTHOR.in(existsAuthors)).execute();
}
}
@Override
public List<BookModel> selectAll() {
List<BookModel> books =
create
.select(
BOOK.ID_BOOK,
BOOK.TITLE,
BOOK.SHORT_DESCRIPTION,
BOOK.DATE_PUBLISH,
PostgresDSL.arrayAgg(concat(AUTHOR.FIRST_NAME, val(" "), AUTHOR.SECOND_NAME))
.as("authors"))
.from(AUTHOR)
.join(AUTHOR_BOOK)
.on(AUTHOR_BOOK.ID_AUTHOR.equal(AUTHOR.ID_AUTHOR))
.join(BOOK)
.on(BOOK.ID_BOOK.equal(AUTHOR_BOOK.ID_BOOK))
.where(BOOK.STATUS.equal(true))
.groupBy(BOOK.ID_BOOK)
.fetchInto(BookModel.class);
logger.debug("Books: " + books);
return books;
}
