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<?php declare(strict_types=1); |
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/** |
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* ownCloud - Music app |
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* |
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* This file is licensed under the Affero General Public License version 3 or |
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* later. See the COPYING file. |
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* |
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* @author Morris Jobke <[email protected]> |
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* @author Pauli Järvinen <[email protected]> |
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* @copyright Morris Jobke 2013, 2014 |
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* @copyright Pauli Järvinen 2016 - 2023 |
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*/ |
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namespace OCA\Music\Db; |
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use OCA\Music\Utility\Util; |
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use OCP\IDBConnection; |
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/** |
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* @phpstan-extends BaseMapper<Artist> |
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*/ |
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class ArtistMapper extends BaseMapper { |
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public function __construct(IDBConnection $db) { |
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parent::__construct($db, 'music_artists', Artist::class, 'name'); |
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} |
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/** |
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* @param string $userId |
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* @param integer $sortBy sort order of the result set |
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* @return Artist[] |
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*/ |
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public function findAllHavingAlbums(string $userId, int $sortBy=SortBy::None, |
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?int $limit=null, ?int $offset=null, ?string $name=null, int $matchMode=MatchMode::Exact) : array { |
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$params = [$userId]; |
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$condition = $this->formatExcludeChildlessCondition(); |
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if ($name !== null) { |
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[$nameCond, $nameParams] = $this->formatNameConditions($name, $matchMode); |
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$condition .= " AND $nameCond"; |
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$params = \array_merge($params, $nameParams); |
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} |
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$sql = $this->selectUserEntities($condition, $this->formatSortingClause($sortBy)); |
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return $this->findEntities($sql, $params, $limit, $offset); |
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} |
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/** |
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* @param int $genreId |
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* @param string $userId |
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* @param int|null $limit |
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* @param int|null $offset |
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* @return Artist[] |
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*/ |
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public function findAllByGenre(int $genreId, string $userId, ?int $limit=null, ?int $offset=null) : array { |
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$sql = $this->selectUserEntities('EXISTS '. |
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'(SELECT 1 FROM `*PREFIX*music_tracks` `track` |
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WHERE `*PREFIX*music_artists`.`id` = `track`.`artist_id` |
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AND `track`.`genre_id` = ?)'); |
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$params = [$userId, $genreId]; |
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return $this->findEntities($sql, $params, $limit, $offset); |
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} |
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/** |
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* returns summed track play counts of each aritst of the user, omittig artists which have never been played |
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* |
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* @return array [int => int], keys are artist IDs and values are play count sums; ordered largest counts first |
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*/ |
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public function getArtistTracksPlayCount(string $userId, ?int $limit=null, ?int $offset=null) : array { |
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$sql = 'SELECT `artist_id`, SUM(`play_count`) AS `sum_count` |
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FROM `*PREFIX*music_tracks` |
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WHERE `user_id` = ? AND `play_count` > 0 |
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GROUP BY `artist_id` |
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ORDER BY `sum_count` DESC, `artist_id`'; // the second criterion is just to make the order predictable on even counts |
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$result = $this->execute($sql, [$userId], $limit, $offset); |
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$playCountByArtist = []; |
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while ($row = $result->fetch()) { |
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$playCountByArtist[$row['artist_id']] = (int)$row['sum_count']; |
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} |
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return $playCountByArtist; |
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} |
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/** |
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* returns the latest play time of each artist of the user, omittig artists which have never been played |
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* |
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* @return array [int => string], keys are artist IDs and values are date-times; ordered latest times first |
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*/ |
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public function getLatestArtistPlayTimes(string $userId, ?int $limit=null, ?int $offset=null) : array { |
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$sql = 'SELECT `artist_id`, MAX(`last_played`) AS `latest_time` |
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FROM `*PREFIX*music_tracks` |
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WHERE `user_id` = ? AND `last_played` IS NOT NULL |
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GROUP BY `artist_id` |
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ORDER BY `latest_time` DESC'; |
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$result = $this->execute($sql, [$userId], $limit, $offset); |
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$latestTimeByArtist = []; |
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while ($row = $result->fetch()) { |
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$latestTimeByArtist[$row['artist_id']] = $row['latest_time']; |
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} |
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return $latestTimeByArtist; |
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} |
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/** |
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* returns the latest play time of each artist of the user, including artists which have never been played |
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* |
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* @return array [int => ?string], keys are artist IDs and values are date-times (or null for never played); |
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* ordered furthest times first |
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*/ |
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public function getFurthestArtistPlayTimes(string $userId, ?int $limit=null, ?int $offset=null) : array { |
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$sql = 'SELECT `artist_id`, MAX(`last_played`) AS `latest_time` |
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FROM `*PREFIX*music_tracks` |
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WHERE `user_id` = ? |
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GROUP BY `artist_id` |
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ORDER BY `latest_time` ASC'; |
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$result = $this->execute($sql, [$userId], $limit, $offset); |
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$latestTimeByArtist = []; |
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while ($row = $result->fetch()) { |
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$latestTimeByArtist[$row['artist_id']] = $row['latest_time']; |
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} |
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return $latestTimeByArtist; |
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} |
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/** |
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* @param integer[] $coverFileIds |
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* @param string[]|null $userIds the users whose music library is targeted; all users are targeted if omitted |
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* @return Artist[] artists which got modified (with incomplete data, only id and user are valid), |
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* empty array if none |
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*/ |
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public function removeCovers(array $coverFileIds, ?array $userIds=null) : array { |
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// find albums using the given file as cover |
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$sql = 'SELECT `id`, `user_id` FROM `*PREFIX*music_artists` WHERE `cover_file_id` IN ' . |
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$this->questionMarks(\count($coverFileIds)); |
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$params = $coverFileIds; |
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if ($userIds !== null) { |
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$sql .= ' AND `user_id` IN ' . $this->questionMarks(\count($userIds)); |
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$params = \array_merge($params, $userIds); |
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} |
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$artists = $this->findEntities($sql, $params); |
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// if any artists found, remove the cover from those |
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$count = \count($artists); |
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if ($count) { |
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$sql = 'UPDATE `*PREFIX*music_artists` |
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SET `cover_file_id` = NULL |
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WHERE `id` IN ' . $this->questionMarks($count); |
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$params = Util::extractIds($artists); |
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$this->execute($sql, $params); |
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} |
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return $artists; |
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} |
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/** |
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* Overridden from the base implementation |
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* |
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* @see BaseMapper::formatExcludeChildlessCondition() |
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*/ |
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protected function formatExcludeChildlessCondition() : string { |
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return 'EXISTS (SELECT 1 FROM `*PREFIX*music_albums` `album` WHERE `*PREFIX*music_artists`.`id` = `album`.`album_artist_id`)'; |
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} |
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/** |
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* Overridden from the base implementation to provide support for table-specific rules |
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* |
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* {@inheritdoc} |
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* @see BaseMapper::advFormatSqlCondition() |
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*/ |
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protected function advFormatSqlCondition(string $rule, string $sqlOp) : string { |
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// The extra subquery "mysqlhack" seen around some nested queries is needed in order for these to not be insanely slow on MySQL. |
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// In case of 'recent_played', the MySQL 5.5.62 errored with "1235 This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery'" without the extra subquery. |
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switch ($rule) { |
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case 'album': return "`*PREFIX*music_artists`.`id` IN (SELECT `artist_id` FROM `*PREFIX*music_tracks` `t` JOIN `*PREFIX*music_albums` `a` ON `t`.`album_id` = `a`.`id` WHERE LOWER(`a`.`name`) $sqlOp LOWER(?))"; |
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case 'artist': return parent::advFormatSqlCondition('name', $sqlOp); // alias |
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case 'song': return "`*PREFIX*music_artists`.`id` IN (SELECT `artist_id` FROM `*PREFIX*music_tracks` `t` WHERE LOWER(`t`.`title`) $sqlOp LOWER(?))"; |
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case 'songrating': return "`*PREFIX*music_artists`.`id` IN (SELECT `artist_id` FROM `*PREFIX*music_tracks` `t` WHERE `t`.`rating` $sqlOp ?)"; |
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case 'albumrating': return "`*PREFIX*music_artists`.`id` IN (SELECT `album_artist_id` from `*PREFIX*music_albums` `al` WHERE `al`.`rating` $sqlOp ?)"; |
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case 'played_times': return "`*PREFIX*music_artists`.`id` IN (SELECT * FROM (SELECT `artist_id` from `*PREFIX*music_tracks` GROUP BY `artist_id` HAVING SUM(`play_count`) $sqlOp ?) mysqlhack)"; |
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case 'last_play': return "`*PREFIX*music_artists`.`id` IN (SELECT * FROM (SELECT `artist_id` from `*PREFIX*music_tracks` GROUP BY `artist_id` HAVING MAX(`last_played`) $sqlOp ?) mysqlhack)"; |
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case 'played': // fall through, we give no access to other people's data; not part of the API spec but Ample uses this |
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case 'myplayed': return "`*PREFIX*music_artists`.`id` IN (SELECT * FROM (SELECT `artist_id` from `*PREFIX*music_tracks` GROUP BY `artist_id` HAVING MAX(`last_played`) $sqlOp) mysqlhack)"; // operator "IS NULL" or "IS NOT NULL" |
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case 'album_count': return "`*PREFIX*music_artists`.`id` IN (SELECT * FROM (SELECT `album_artist_id` FROM `*PREFIX*music_albums` GROUP BY `album_artist_id` HAVING COUNT(`id`) $sqlOp ?) mysqlhack)"; |
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case 'song_count': return "`*PREFIX*music_artists`.`id` IN (SELECT * FROM (SELECT `artist_id` FROM `*PREFIX*music_tracks` GROUP BY `artist_id` HAVING COUNT(`id`) $sqlOp ?) mysqlhack)"; |
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case 'time': return "`*PREFIX*music_artists`.`id` IN (SELECT * FROM (SELECT `artist_id` FROM `*PREFIX*music_tracks` GROUP BY `artist_id` HAVING SUM(`length`) $sqlOp ?) mysqlhack)"; |
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case 'genre': return "`*PREFIX*music_artists`.`id` IN (SELECT * FROM (SELECT `artist_id` FROM `*PREFIX*music_tracks` `t` JOIN `*PREFIX*music_genres` `g` ON `t`.`genre_id` = `g`.`id` GROUP BY `artist_id` HAVING LOWER(GROUP_CONCAT(`g`.`name`)) $sqlOp LOWER(?)) mysqlhack)"; // GROUP_CONCAT not available on PostgreSQL |
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case 'song_genre': return "`*PREFIX*music_artists`.`id` IN (SELECT `artist_id` FROM `*PREFIX*music_tracks` `t` JOIN `*PREFIX*music_genres` `g` ON `t`.`genre_id` = `g`.`id` WHERE LOWER(`g`.`name`) $sqlOp LOWER(?))"; |
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case 'no_genre': return "`*PREFIX*music_artists`.`id` IN (SELECT `artist_id` FROM `*PREFIX*music_tracks` `t` JOIN `*PREFIX*music_genres` `g` ON `t`.`genre_id` = `g`.`id` WHERE `g`.`name` " . (($sqlOp == 'IS NOT NULL') ? '=' : '!=') . ' "")'; |
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case 'playlist': return "`*PREFIX*music_artists`.`id` IN (SELECT `artist_id` FROM `*PREFIX*music_tracks` `t` WHERE $sqlOp EXISTS (SELECT 1 from `*PREFIX*music_playlists` `p` WHERE `p`.`id` = ? AND `p`.`track_ids` LIKE CONCAT('%|',`t`.`id`, '|%')))"; |
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case 'playlist_name': return "`*PREFIX*music_artists`.`id` IN (SELECT `artist_id` FROM `*PREFIX*music_tracks` `t` WHERE EXISTS (SELECT 1 from `*PREFIX*music_playlists` `p` WHERE `p`.`name` $sqlOp ? AND `p`.`track_ids` LIKE CONCAT('%|',`t`.`id`, '|%')))"; |
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case 'file': return "`*PREFIX*music_artists`.`id` IN (SELECT `artist_id` FROM `*PREFIX*music_tracks` `t` JOIN `*PREFIX*filecache` `f` ON `t`.`file_id` = `f`.`fileid` WHERE LOWER(`f`.`name`) $sqlOp LOWER(?))"; |
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case 'recent_played': return "`*PREFIX*music_artists`.`id` IN (SELECT `artist_id` FROM (SELECT `artist_id`, MAX(`last_played`) FROM `*PREFIX*music_tracks` WHERE `user_id` = ? GROUP BY `artist_id` ORDER BY MAX(`last_played`) DESC LIMIT $sqlOp) mysqlhack)"; |
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case 'mbid_artist': return parent::advFormatSqlCondition('mbid', $sqlOp); // alias |
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case 'mbid_song': return "`*PREFIX*music_artists`.`id` IN (SELECT `artist_id` FROM `*PREFIX*music_tracks` `t` WHERE `t`.`mbid` $sqlOp ?)"; |
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case 'mbid_album': return "`*PREFIX*music_artists`.`id` IN (SELECT `album_artist_id` from `*PREFIX*music_albums` `al` WHERE `al`.`mbid` $sqlOp ?)"; |
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case 'has_image': return "`cover_file_id` $sqlOp"; // operator "IS NULL" or "IS NOT NULL" |
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default: return parent::advFormatSqlCondition($rule, $sqlOp); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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* @see \OCA\Music\Db\BaseMapper::findUniqueEntity() |
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* @param Artist $artist |
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* @return Artist |
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*/ |
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protected function findUniqueEntity(Entity $artist) : Entity { |
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$sql = $this->selectUserEntities('`hash` = ?'); |
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return $this->findEntity($sql, [$artist->getUserId(), $artist->getHash()]); |
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} |
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} |
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owncloud /
music
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