TrackMapper::getDurations() - Code Metrics - Inspection of "Subsonic/Ampache: Fix numbering on playlists with..." - owncloud/music - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( d05692...31284f )

by Pauli

created 2020-05-16 20:46 UTC

TrackMapper::getDurations() A

↳ Parent: TrackMapper

Complexity

Conditions	3
Paths	2

Size

Total Lines	12
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	12

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	3
eloc	8
nc	2
nop	1
dl	0
loc	12
ccs	0
cts	8
cp	0
crap	12
rs	10
c	1
b	0
f	0

<?php

/**
 * ownCloud - Music app
 *
 * This file is licensed under the Affero General Public License version 3 or
 * later. See the COPYING file.
 *
 * @author Morris Jobke <[email protected]>
 * @author Pauli Järvinen <[email protected]>
 * @copyright Morris Jobke 2013, 2014
 * @copyright Pauli Järvinen 2016 - 2020
 */

namespace OCA\Music\Db;

use OCP\IDBConnection;
filter:
    dependency_paths: ["lib/*"]

class TrackMapper extends BaseMapper {
	public function __construct(IDBConnection $db) {
		parent::__construct($db, 'music_tracks', '\OCA\Music\Db\Track', 'title');
	}

	/**
	 * Override the base implementation
	 * @see \OCA\Music\Db\BaseMapper::selectEntities()
	 * @param string $condition
	 * @param string|null $extension
	 */
	protected function selectEntities($condition, $extension=null) {
		return "SELECT `track`.*, `file`.`name` AS `filename`, `file`.`size`
				FROM `*PREFIX*music_tracks` `track`
				INNER JOIN `*PREFIX*filecache` `file`
				ON `track`.`file_id` = `file`.`fileid`
				WHERE $condition $extension";
	}

	/**
	 * @param integer $artistId
	 * @param string $userId
	 * @return Track[]
	 */
	public function findAllByArtist($artistId, $userId) {
		$sql = $this->selectUserEntities('`artist_id` = ? ', 'ORDER BY LOWER(`track`.`title`)');
		$params = [$userId, $artistId];
		return $this->findEntities($sql, $params);
	}

	/**
	 * @param integer $albumId
	 * @param string $userId
	 * @param integer|null $artistId
	 * @return Track[]
	 */
	public function findAllByAlbum($albumId, $userId, $artistId = null) {
		$condition = '`track`.`album_id` = ?';
		$params = [$userId, $albumId];

		if ($artistId !== null) {
			$condition .= ' AND `track`.`artist_id` = ? ';
			$params[] = $artistId;
		}

		$sql = $this->selectUserEntities($condition, 
				'ORDER BY `track`.`disk`, `track`.`number`, LOWER(`track`.`title`)');
		return $this->findEntities($sql, $params);
	}

	/**
	 * @param integer $folderId
	 * @param string $userId
	 * @return Track[]
	 */
	public function findAllByFolder($folderId, $userId) {
		$sql = $this->selectUserEntities('`file`.`parent` = ?', 'ORDER BY LOWER(`track`.`title`)');
		$params = [$userId, $folderId];
		return $this->findEntities($sql, $params);
	}

	/**
	 * @param int $genreId
	 * @param string $userId
	 * @param int|null $limit
	 * @param int|null $offset
	 * @return Track[] tracks
	 */
	public function findAllByGenre($genreId, $userId, $limit=null, $offset=null) {
		$sql = $this->selectUserEntities('`genre_id` = ?', 'ORDER BY LOWER(`track`.`title`)');
		$params = [$userId, $genreId];
		return $this->findEntities($sql, $params, $limit, $offset);
	}

	/**
	 * @param string $userId
	 * @return int[]
	 */
	public function findAllFileIds($userId) {
		$sql = 'SELECT `file_id` FROM `*PREFIX*music_tracks` WHERE `user_id` = ?';
		$result = $this->execute($sql, [$userId]);

		return \array_map(function ($i) {
			return $i['file_id'];
		}, $result->fetchAll());
	}

	/**
	 * Find a track of user matching a file ID
	 * @param integer $fileId
	 * @param string $userId
	 * @return Track
	 * @throws \OCP\AppFramework\Db\DoesNotExistException if not found
	 */
	public function findByFileId($fileId, $userId) {
		$sql = $this->selectUserEntities('`track`.`file_id` = ?');
		$params = [$userId, $fileId];
		return $this->findEntity($sql, $params);
	}

	/**
	 * Find tracks of user with multiple file IDs
	 * @param integer[] $fileIds
	 * @param string[] $userIds
	 * @return Track[]
	 */
	public function findByFileIds($fileIds, $userIds) {
		$sql = $this->selectEntities(
				'`track`.`user_id` IN ' . $this->questionMarks(\count($userIds)) .
				' AND `track`.`file_id` IN '. $this->questionMarks(\count($fileIds)));
		$params = \array_merge($userIds, $fileIds);
		return $this->findEntities($sql, $params);
	}

	/**
	 * Finds tracks of all users matching one or multiple file IDs
	 * @param integer[] $fileIds
	 * @return Track[]
	 */
	public function findAllByFileIds($fileIds) {
		$sql = $this->selectEntities('`track`.`file_id` IN '.
				$this->questionMarks(\count($fileIds)));
		return $this->findEntities($sql, $fileIds);
	}

	/**
	 * @param integer $artistId
	 * @return integer
	 */
	public function countByArtist($artistId) {
		$sql = 'SELECT COUNT(*) AS `count` FROM `*PREFIX*music_tracks` WHERE `artist_id` = ?';
		$result = $this->execute($sql, [$artistId]);
		$row = $result->fetch();
		return $row['count'];
	}

	/**
	 * @param integer $albumId
	 * @return integer
	 */
	public function countByAlbum($albumId) {
		$sql = 'SELECT COUNT(*) AS `count` FROM `*PREFIX*music_tracks` WHERE `album_id` = ?';
		$result = $this->execute($sql, [$albumId]);
		$row = $result->fetch();
		return $row['count'];
	}

	/**
	 * @param integer $albumId
	 * @return integer Duration in seconds
	 */
	public function totalDurationOfAlbum($albumId) {
		$sql = 'SELECT SUM(`length`) AS `duration` FROM `*PREFIX*music_tracks` WHERE `album_id` = ?';
		$result = $this->execute($sql, [$albumId]);
		$row = $result->fetch();
		return $row['duration'];
	}

	/**
	 * Get durations of the given tracks.
	 * @param integer[] $trackIds
	 * @return array {int => int} where keys are track IDs and values are corresponding durations
	 */
	public function getDurations($trackIds) {
		$result = [];

		if (!empty($trackIds)) {
			$sql = 'SELECT `id`, `length` FROM `*PREFIX*music_tracks` WHERE `id` IN ' .
						$this->questionMarks(\count($trackIds));
			$rows = $this->execute($sql, $trackIds)->fetchAll();
			foreach ($rows as $row) {
				$result[$row['id']] = $row['length'];
			}
		}
		return $result;
	}

	/**
	 * @param string $name
	 * @param string $userId
	 * @return Track[]
	 */
	public function findAllByNameRecursive($name, $userId) {
		$condition = '(`track`.`artist_id` IN (SELECT `id` FROM `*PREFIX*music_artists` WHERE LOWER(`name`) LIKE LOWER(?)) OR '.
						' `track`.`album_id` IN (SELECT `id` FROM `*PREFIX*music_albums` WHERE LOWER(`name`) LIKE LOWER(?)) OR '.
						' LOWER(`track`.`title`) LIKE LOWER(?) )';
		$sql = $this->selectUserEntities($condition, 'ORDER BY LOWER(`track`.`title`)');
		$name = '%' . $name . '%';
		$params = [$userId, $name, $name, $name];
		return $this->findEntities($sql, $params);
	}

	/**
	 * Returns all tracks specified by name and/or artist name
	 * @param string|null $name the name of the track
	 * @param string|null $artistName the name of the artist
	 * @param bool $fuzzy match names using case-insensitive substring search
	 * @param string $userId the name of the user
	 * @return \OCA\Music\Db\Track[] Tracks matching the criteria
	 */
	public function findAllByNameAndArtistName($name, $artistName, $fuzzy, $userId) {
		$sqlConditions = [];
		$params = [$userId];

		if (!empty($name)) {
			if ($fuzzy) {
				$sqlConditions[] = 'LOWER(`track`.`title`) LIKE LOWER(?)';
				$params[] = "%$name%";
			} else {
				$sqlConditions[] = '`track`.`title` = ?';
				$params[] = $name;
			}
		}

		if (!empty($artistName)) {
			if ($fuzzy) {
				$equality = 'LOWER(`name`) LIKE LOWER(?)';
				$params[] = "%$artistName%";
			} else {
				$equality = '`name` = ?';
				$params[] = $artistName;
			}
			$sqlConditions[] = "`track`.`artist_id` IN (SELECT `id` FROM `*PREFIX*music_artists` WHERE $equality)";
		}

		// at least one condition has to be given, otherwise return an empty set
		if (\count($sqlConditions) > 0) {
			$sql = $this->selectUserEntities(\implode(' AND ', $sqlConditions));
			return $this->findEntities($sql, $params);
		} else {
			return [];
		}
	}

	/**
	 * Finds all track IDs of the user along with the parent folder ID of each track
	 * @param string $userId
	 * @return array where keys are folder IDs and values are arrays of track IDs
	 */
	public function findTrackAndFolderIds($userId) {
		$sql = 'SELECT `track`.`id` AS id, `file`.`parent` AS parent '.
				'FROM `*PREFIX*music_tracks` `track` '.
				'JOIN `*PREFIX*filecache` `file` '.
				'ON `track`.`file_id` = `file`.`fileid` '.
				'WHERE `track`.`user_id` = ?';

		$rows = $this->execute($sql, [$userId])->fetchAll();

		$result = [];
		foreach ($rows as $row) {
			$result[$row['parent']][] = $row['id'];
		}

		return $result;
	}

	/**
	 * Find names and paths of the file system nodes with given IDs within the given storage
	 * @param int[] $nodeIds
	 * @param string $storageId
	 * @return array where keys are the node IDs and values are associative arrays
	 *         like { 'name' => string, 'path' => string };
	 */
	public function findNodeNamesAndPaths($nodeIds, $storageId) {
		$result = [];

		if (!empty($nodeIds)) {
			$sql = 'SELECT `fileid`, `name`, `path` '.
					'FROM `*PREFIX*filecache` `filecache` '.
					'JOIN `*PREFIX*storages` `storages` '.
					'ON `filecache`.`storage` = `storages`.`numeric_id` '.
					'WHERE `storages`.`id` = ? '.
					'AND `filecache`.`fileid` IN '. $this->questionMarks(\count($nodeIds));

			$rows = $this->execute($sql, \array_merge([$storageId], $nodeIds))->fetchAll();

			foreach ($rows as $row) {
				$result[$row['fileid']] = [
					'name' => $row['name'],
					'path' => $row['path']
				];
			}
		}

		return $result;
	}

	/**
	 * Returns all genre IDs associated with the given artist
	 * @param int $artistId
	 * @param string $userId
	 * @return int[]
	 */
	public function getGenresByArtistId($artistId, $userId) {
		$sql = 'SELECT DISTINCT(`genre_id`) FROM `*PREFIX*music_tracks` WHERE
				`genre_id` IS NOT NULL AND `user_id` = ? AND `artist_id` = ?';
		$rows = $this->execute($sql, [$userId, $artistId]);
		return $rows->fetchAll(\PDO::FETCH_COLUMN, 0);
	}

	/**
	 * Returns all tracks IDs of the user, organized by the genre_id.
	 * @param string $userId
	 * @return array where keys are genre IDs and values are arrays of track IDs
	 */
	public function mapGenreIdsToTrackIds($userId) {
		$sql = 'SELECT `id`, `genre_id` FROM `*PREFIX*music_tracks`
				WHERE `genre_id` IS NOT NULL and `user_id` = ?';
		$rows = $this->execute($sql, [$userId]);

		$result = [];
		foreach ($rows as $row) {
			$result[$row['genre_id']][] = $row['id'];
		}

		return $result;
	}

	/**
	 * Returns file IDs of the tracks which do not have genre scanned. This is not the same
	 * thing as unknown genre, which means that the genre has been scanned but was not found
	 * from the track metadata.
	 * @param string $userId
	 * @return int[]
	 */
	public function findFilesWithoutScannedGenre($userId) {
		$sql = 'SELECT `track`.`file_id` FROM `*PREFIX*music_tracks` `track`
				INNER JOIN `*PREFIX*filecache` `file`
				ON `track`.`file_id` = `file`.`fileid`
				WHERE `genre_id` IS NULL and `user_id` = ?';
		$rows = $this->execute($sql, [$userId]);
		return $rows->fetchAll(\PDO::FETCH_COLUMN, 0);
	}

	/**
	 * @see \OCA\Music\Db\BaseMapper::findUniqueEntity()
	 * @param Track $track
	 * @return Track
	 */
	protected function findUniqueEntity($track) {
		return $this->findByFileId($track->getFileId(), $track->getUserId());
	}
}


1			<?php
2
3			/**
4			* ownCloud - Music app
5			*
6			* This file is licensed under the Affero General Public License version 3 or
7			* later. See the COPYING file.
8			*
9			* @author Morris Jobke <[email protected]>
10			* @author Pauli Järvinen <[email protected]>
11			* @copyright Morris Jobke 2013, 2014
12			* @copyright Pauli Järvinen 2016 - 2020
13			*/
14
15			namespace OCA\Music\Db;
16
17			use OCP\IDBConnection;
			0 ignored issues – show Bug introduced 2019-05-09 18:18 UTC by Report Bug Copy Issue Report The type `OCP\IDBConnection` was not found. Maybe you did not declare it correctly or list all dependencies? The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g. `excluded_paths: ["lib/"]`, you can move it to the dependency path list as follows: filter: dependency_paths: ["lib/"] For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths Loading history...
18
19			class TrackMapper extends BaseMapper {
20			public function __construct(IDBConnection $db) {
21			parent::__construct($db, 'music_tracks', '\OCA\Music\Db\Track', 'title');
22			}
23
24			/**
25			* Override the base implementation
26			* @see \OCA\Music\Db\BaseMapper::selectEntities()
27			* @param string $condition
28			* @param string\|null $extension
29			*/
30			protected function selectEntities($condition, $extension=null) {
31			return "SELECT `track`.*, `file`.`name` AS `filename`, `file`.`size`
32			FROM `PREFIXmusic_tracks` `track`
33			INNER JOIN `PREFIXfilecache` `file`
34			ON `track`.`file_id` = `file`.`fileid`
35			WHERE $condition $extension";
36			}
37
38			/**
39			* @param integer $artistId
40			* @param string $userId
41			* @return Track[]
42			*/
43			public function findAllByArtist($artistId, $userId) {
44			$sql = $this->selectUserEntities('`artist_id` = ? ', 'ORDER BY LOWER(`track`.`title`)');
45			$params = [$userId, $artistId];
46			return $this->findEntities($sql, $params);
47			}
48
49			/**
50			* @param integer $albumId
51			* @param string $userId
52			* @param integer\|null $artistId
53			* @return Track[]
54			*/
55			public function findAllByAlbum($albumId, $userId, $artistId = null) {
56			$condition = '`track`.`album_id` = ?';
57			$params = [$userId, $albumId];
58
59			if ($artistId !== null) {
60			$condition .= ' AND `track`.`artist_id` = ? ';
61			$params[] = $artistId;
62			}
63
64			$sql = $this->selectUserEntities($condition,
65			'ORDER BY `track`.`disk`, `track`.`number`, LOWER(`track`.`title`)');
66			return $this->findEntities($sql, $params);
67			}
68
69			/**
70			* @param integer $folderId
71			* @param string $userId
72			* @return Track[]
73			*/
74			public function findAllByFolder($folderId, $userId) {
75			$sql = $this->selectUserEntities('`file`.`parent` = ?', 'ORDER BY LOWER(`track`.`title`)');
76			$params = [$userId, $folderId];
77			return $this->findEntities($sql, $params);
78			}
79
80			/**
81			* @param int $genreId
82			* @param string $userId
83			* @param int\|null $limit
84			* @param int\|null $offset
85			* @return Track[] tracks
86			*/
87			public function findAllByGenre($genreId, $userId, $limit=null, $offset=null) {
88			$sql = $this->selectUserEntities('`genre_id` = ?', 'ORDER BY LOWER(`track`.`title`)');
89			$params = [$userId, $genreId];
90			return $this->findEntities($sql, $params, $limit, $offset);
91			}
92
93			/**
94			* @param string $userId
95			* @return int[]
96			*/
97			public function findAllFileIds($userId) {
98			$sql = 'SELECT `file_id` FROM `PREFIXmusic_tracks` WHERE `user_id` = ?';
99			$result = $this->execute($sql, [$userId]);
100
101			return \array_map(function ($i) {
102			return $i['file_id'];
103			}, $result->fetchAll());
104			}
105
106			/**
107			* Find a track of user matching a file ID
108			* @param integer $fileId
109			* @param string $userId
110			* @return Track
111			* @throws \OCP\AppFramework\Db\DoesNotExistException if not found
112			*/
113			public function findByFileId($fileId, $userId) {
114			$sql = $this->selectUserEntities('`track`.`file_id` = ?');
115			$params = [$userId, $fileId];
116			return $this->findEntity($sql, $params);
117			}
118
119			/**
120			* Find tracks of user with multiple file IDs
121			* @param integer[] $fileIds
122			* @param string[] $userIds
123			* @return Track[]
124			*/
125			public function findByFileIds($fileIds, $userIds) {
126			$sql = $this->selectEntities(
127			'`track`.`user_id` IN ' . $this->questionMarks(\count($userIds)) .
128			' AND `track`.`file_id` IN '. $this->questionMarks(\count($fileIds)));
129			$params = \array_merge($userIds, $fileIds);
130			return $this->findEntities($sql, $params);
131			}
132
133			/**
134			* Finds tracks of all users matching one or multiple file IDs
135			* @param integer[] $fileIds
136			* @return Track[]
137			*/
138			public function findAllByFileIds($fileIds) {
139			$sql = $this->selectEntities('`track`.`file_id` IN '.
140			$this->questionMarks(\count($fileIds)));
141			return $this->findEntities($sql, $fileIds);
142			}
143
144			/**
145			* @param integer $artistId
146			* @return integer
147			*/
148			public function countByArtist($artistId) {
149			$sql = 'SELECT COUNT() AS `count` FROM `PREFIX*music_tracks` WHERE `artist_id` = ?';
150			$result = $this->execute($sql, [$artistId]);
151			$row = $result->fetch();
152			return $row['count'];
153			}
154
155			/**
156			* @param integer $albumId
157			* @return integer
158			*/
159			public function countByAlbum($albumId) {
160			$sql = 'SELECT COUNT() AS `count` FROM `PREFIX*music_tracks` WHERE `album_id` = ?';
161			$result = $this->execute($sql, [$albumId]);
162			$row = $result->fetch();
163			return $row['count'];
164			}
165
166			/**
167			* @param integer $albumId
168			* @return integer Duration in seconds
169			*/
170			public function totalDurationOfAlbum($albumId) {
171			$sql = 'SELECT SUM(`length`) AS `duration` FROM `PREFIXmusic_tracks` WHERE `album_id` = ?';
172			$result = $this->execute($sql, [$albumId]);
173			$row = $result->fetch();
174			return $row['duration'];
175			}
176
177			/**
178			* Get durations of the given tracks.
179			* @param integer[] $trackIds
180			* @return array {int => int} where keys are track IDs and values are corresponding durations
181			*/
182			public function getDurations($trackIds) {
183			$result = [];
184
185			if (!empty($trackIds)) {
186			$sql = 'SELECT `id`, `length` FROM `PREFIXmusic_tracks` WHERE `id` IN ' .
187			$this->questionMarks(\count($trackIds));
188			$rows = $this->execute($sql, $trackIds)->fetchAll();
189			foreach ($rows as $row) {
190			$result[$row['id']] = $row['length'];
191			}
192			}
193			return $result;
194			}
195
196			/**
197			* @param string $name
198			* @param string $userId
199			* @return Track[]
200			*/
201			public function findAllByNameRecursive($name, $userId) {
202			$condition = '(`track`.`artist_id` IN (SELECT `id` FROM `PREFIXmusic_artists` WHERE LOWER(`name`) LIKE LOWER(?)) OR '.
203			' `track`.`album_id` IN (SELECT `id` FROM `PREFIXmusic_albums` WHERE LOWER(`name`) LIKE LOWER(?)) OR '.
204			' LOWER(`track`.`title`) LIKE LOWER(?) )';
205			$sql = $this->selectUserEntities($condition, 'ORDER BY LOWER(`track`.`title`)');
206			$name = '%' . $name . '%';
207			$params = [$userId, $name, $name, $name];
208			return $this->findEntities($sql, $params);
209			}
210
211			/**
212			* Returns all tracks specified by name and/or artist name
213			* @param string\|null $name the name of the track
214			* @param string\|null $artistName the name of the artist
215			* @param bool $fuzzy match names using case-insensitive substring search
216			* @param string $userId the name of the user
217			* @return \OCA\Music\Db\Track[] Tracks matching the criteria
218			*/
219			public function findAllByNameAndArtistName($name, $artistName, $fuzzy, $userId) {
220			$sqlConditions = [];
221			$params = [$userId];
222
223			if (!empty($name)) {
224			if ($fuzzy) {
225			$sqlConditions[] = 'LOWER(`track`.`title`) LIKE LOWER(?)';
226			$params[] = "%$name%";
227			} else {
228			$sqlConditions[] = '`track`.`title` = ?';
229			$params[] = $name;
230			}
231			}
232
233			if (!empty($artistName)) {
234			if ($fuzzy) {
235			$equality = 'LOWER(`name`) LIKE LOWER(?)';
236			$params[] = "%$artistName%";
237			} else {
238			$equality = '`name` = ?';
239			$params[] = $artistName;
240			}
241			$sqlConditions[] = "`track`.`artist_id` IN (SELECT `id` FROM `PREFIXmusic_artists` WHERE $equality)";
242			}
243
244			// at least one condition has to be given, otherwise return an empty set
245			if (\count($sqlConditions) > 0) {
246			$sql = $this->selectUserEntities(\implode(' AND ', $sqlConditions));
247			return $this->findEntities($sql, $params);
248			} else {
249			return [];
250			}
251			}
252
253			/**
254			* Finds all track IDs of the user along with the parent folder ID of each track
255			* @param string $userId
256			* @return array where keys are folder IDs and values are arrays of track IDs
257			*/
258			public function findTrackAndFolderIds($userId) {
259			$sql = 'SELECT `track`.`id` AS id, `file`.`parent` AS parent '.
260			'FROM `PREFIXmusic_tracks` `track` '.
261			'JOIN `PREFIXfilecache` `file` '.
262			'ON `track`.`file_id` = `file`.`fileid` '.
263			'WHERE `track`.`user_id` = ?';
264
265			$rows = $this->execute($sql, [$userId])->fetchAll();
266
267			$result = [];
268			foreach ($rows as $row) {
269			$result[$row['parent']][] = $row['id'];
270			}
271
272			return $result;
273			}
274
275			/**
276			* Find names and paths of the file system nodes with given IDs within the given storage
277			* @param int[] $nodeIds
278			* @param string $storageId
279			* @return array where keys are the node IDs and values are associative arrays
280			* like { 'name' => string, 'path' => string };
281			*/
282			public function findNodeNamesAndPaths($nodeIds, $storageId) {
283			$result = [];
284
285			if (!empty($nodeIds)) {
286			$sql = 'SELECT `fileid`, `name`, `path` '.
287			'FROM `PREFIXfilecache` `filecache` '.
288			'JOIN `PREFIXstorages` `storages` '.
289			'ON `filecache`.`storage` = `storages`.`numeric_id` '.
290			'WHERE `storages`.`id` = ? '.
291			'AND `filecache`.`fileid` IN '. $this->questionMarks(\count($nodeIds));
292
293			$rows = $this->execute($sql, \array_merge([$storageId], $nodeIds))->fetchAll();
294
295			foreach ($rows as $row) {
296			$result[$row['fileid']] = [
297			'name' => $row['name'],
298			'path' => $row['path']
299			];
300			}
301			}
302
303			return $result;
304			}
305
306			/**
307			* Returns all genre IDs associated with the given artist
308			* @param int $artistId
309			* @param string $userId
310			* @return int[]
311			*/
312			public function getGenresByArtistId($artistId, $userId) {
313			$sql = 'SELECT DISTINCT(`genre_id`) FROM `PREFIXmusic_tracks` WHERE
314			`genre_id` IS NOT NULL AND `user_id` = ? AND `artist_id` = ?';
315			$rows = $this->execute($sql, [$userId, $artistId]);
316			return $rows->fetchAll(\PDO::FETCH_COLUMN, 0);
317			}
318
319			/**
320			* Returns all tracks IDs of the user, organized by the genre_id.
321			* @param string $userId
322			* @return array where keys are genre IDs and values are arrays of track IDs
323			*/
324			public function mapGenreIdsToTrackIds($userId) {
325			$sql = 'SELECT `id`, `genre_id` FROM `PREFIXmusic_tracks`
326			WHERE `genre_id` IS NOT NULL and `user_id` = ?';
327			$rows = $this->execute($sql, [$userId]);
328
329			$result = [];
330			foreach ($rows as $row) {
331			$result[$row['genre_id']][] = $row['id'];
332			}
333
334			return $result;
335			}
336
337			/**
338			* Returns file IDs of the tracks which do not have genre scanned. This is not the same
339			* thing as unknown genre, which means that the genre has been scanned but was not found
340			* from the track metadata.
341			* @param string $userId
342			* @return int[]
343			*/
344			public function findFilesWithoutScannedGenre($userId) {
345			$sql = 'SELECT `track`.`file_id` FROM `PREFIXmusic_tracks` `track`
346			INNER JOIN `PREFIXfilecache` `file`
347			ON `track`.`file_id` = `file`.`fileid`
348			WHERE `genre_id` IS NULL and `user_id` = ?';
349			$rows = $this->execute($sql, [$userId]);
350			return $rows->fetchAll(\PDO::FETCH_COLUMN, 0);
351			}
352
353			/**
354			* @see \OCA\Music\Db\BaseMapper::findUniqueEntity()
355			* @param Track $track
356			* @return Track
357			*/
358			protected function findUniqueEntity($track) {
359			return $this->findByFileId($track->getFileId(), $track->getUserId());
360			}
361			}
362

owncloud / music

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