protected function saveCategoryRelation(AuthorModel $author)
{
$author->setIsChangedCategoryList(false);
$id = $author->getId();
$categories = $author->getCategoriesIds();
if ($categories === null) {
return $this;
}
$oldCategoryIds = $author->getCategoryIds();
$insert = array_diff_key($categories, $oldCategoryIds);
$delete = array_diff_key($oldCategoryIds, $categories);
$adapter = $this->getConnection();
if (!empty($delete)) {
$condition = array('category_id IN(?)' => $delete, 'author_id=?' => $id);
$adapter->delete($this->authorCategoryTable, $condition);
}
if (!empty($insert)) {
$data = array();
foreach ($insert as $categoryId) {
$data[] = array('author_id' => (int) $id, 'category_id' => (int) $categoryId, 'position' => 1);
}
$adapter->insertMultiple($this->authorCategoryTable, $data);
}
if (!empty($insert) || !empty($delete)) {
$categoryIds = array_unique(array_merge(array_keys($insert), array_keys($delete)));
$this->eventManager->dispatch('sample_news_author_change_categories', array('author' => $author, 'category_ids' => $categoryIds));
}
if (!empty($insert) || !empty($delete)) {
$author->setIsChangedCategoryList(true);
$categoryIds = array_keys($insert + $delete);
$author->setAffectedCategoryIds($categoryIds);
}
return $this;
}