/**
* @desc Searches for a song lyrics in Solr index
*
* @param LyricsApiSearchParams $searchParams
*
* @return array|null
*/
public function searchLyrics(LyricsApiSearchParams $searchParams)
{
$query = $this->newQueryFromSearch(['type: %1%' => LyricsUtils::TYPE_SONG, 'lyrics: %P2%' => $searchParams->getField(LyricsApiController::PARAM_QUERY)]);
$query->setStart($searchParams->getOffset());
$query->setRows($searchParams->getLimit());
$hl = $query->getHighlighting();
$hl->setFields(self::INDEX_FIELD_NAME_LYRICS);
$hl->setSimplePrefix(self::HIGHLIGHT_PREFIX);
$hl->setSimplePostfix(self::HIGHLIGHT_POSTFIX);
$solrSongs = $this->client->select($query);
if ($solrSongs->getNumFound() <= 0) {
return null;
}
$songs = [];
$highlighting = $solrSongs->getHighlighting();
/** @var Solarium_Document_ReadOnly $solrSong */
foreach ($solrSongs as $solrSong) {
$fields = $solrSong->getFields();
$songs[] = $this->getOutputSong($solrSong, $highlighting->getResult($fields['id']), true);
}
return $songs;
}
