/**
* @inheritdoc
*/
public function getRelationships($post, array $includeRelationships = [])
{
/** @var Post $post */
// that's an example how $includeRelationships could be used for reducing requests to database
if (isset($includeRelationships['author']) === true) {
// as author will be included as full resource we have to give full resource
$author = $post->author;
} else {
// as author will be included as just id and type so it's not necessary to load it from database
$author = new Author();
$author->setAttribute($author->getKeyName(), $post->author_id);
}
return ['author' => [self::DATA => $author], 'comments' => [self::DATA => $post->comments->all()]];
}
