@Override
public Category create(Category category) {
if (category.getId() != null && repository.findOne(category.getId()) != null) {
throw new EntityAlreadyExistsException(
String.format("There already exists a category with id=%d!", category.getId()));
} else if (repository.findByName(category.getName()) != null) {
throw new EntityAlreadyExistsException(
String.format("There already exists a category with name=%s!", category.getName()));
} else {
repository.save(category);
}
return category;
}
