/**
* Persist keywords
* @param Links $link
* @param array $keywords
* @property string $new_keyword->id Id of the keyword
* @return void
*/
public function attachKeywords($link, $keywords)
{
$existing_keywords = array_pluck($link->keywords->toArray(), 'id');
foreach ($keywords as $keyword) {
$keyword_object = Keywords::make($keyword['text'], str_slug($keyword['text']));
$new_keyword = $this->keywords->save($keyword_object);
SearchIndex::upsertToIndex($new_keyword);
if (!in_array($new_keyword->id, $existing_keywords)) {
$link->keywords()->attach($new_keyword->id, ['relevance' => $keyword['relevance']]);
}
}
}
