AlbumBusinessLayer::findAllRated() - Code Metrics - Inspection of "Ampache: Fix `stats` with `filter=highest` returni..." - owncloud/music - Measure and Improve Code Quality continuously with Scrutinizer

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by Pauli

created 2023-10-05 20:00 UTC

AlbumBusinessLayer::findAllRated() A

↳ Parent: AlbumBusinessLayer

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	2
c	1
b	0
f	0
nc	1
nop	3
dl	0
loc	3
rs	10

<?php declare(strict_types=1);

/**
 * 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 - 2023
 */

namespace OCA\Music\BusinessLayer;

use OCA\Music\AppFramework\BusinessLayer\BusinessLayer;
use OCA\Music\AppFramework\BusinessLayer\BusinessLayerException;
use OCA\Music\AppFramework\Core\Logger;

use OCA\Music\Db\AlbumMapper;
use OCA\Music\Db\Album;
use OCA\Music\Db\Entity;
use OCA\Music\Db\MatchMode;
use OCA\Music\Db\SortBy;
use OCA\Music\Db\Track;

use OCA\Music\Utility\Util;

/**
 * Base class functions with the actually used inherited types to help IDE and Scrutinizer:
 * @phpstan-extends BusinessLayer<Album>
 */
class AlbumBusinessLayer extends BusinessLayer {
	protected $mapper; // eclipse the definition from the base class, to help IDE and Scrutinizer to know the actual type
	private $logger;

	public function __construct(AlbumMapper $albumMapper, Logger $logger) {
		parent::__construct($albumMapper);
		$this->mapper = $albumMapper;
		$this->logger = $logger;
	}

	/**
	 * {@inheritdoc}
	 * @see BusinessLayer::find()
	 * @return Album
	 */
	public function find(int $albumId, string $userId) : Entity {
		$album = parent::find($albumId, $userId);
		return $this->injectExtraFields([$album], $userId)[0];
	}

	/**
	 * {@inheritdoc}
	 * @see BusinessLayer::findById()
	 * @return Album[]
	 */
	public function findById(array $ids, string $userId=null, bool $preserveOrder=false) : array {
		$albums = parent::findById($ids, $userId, $preserveOrder);
		if ($userId !== null) {
			return $this->injectExtraFields($albums, $userId);
		} else {
			return $albums; // can't inject the extra fields without a user
		}
	}

	/**
	 * {@inheritdoc}
	 * @see BusinessLayer::findAll()
	 * @return Album[]
	 */
	public function findAll(string $userId, int $sortBy=SortBy::None, ?int $limit=null, ?int $offset=null,
							?string $createdMin=null, ?string $createdMax=null, ?string $updatedMin=null, ?string $updatedMax=null) : array {
		$albums = parent::findAll($userId, $sortBy, $limit, $offset, $createdMin, $createdMax, $updatedMin, $updatedMax);
		$effectivelyLimited = ($limit !== null && $limit < \count($albums));
		$everyAlbumIncluded = (!$effectivelyLimited && !$offset && !$createdMin && !$createdMax && !$updatedMin && !$updatedMax);
0   == false // true
0   == null  // true
123 == false // false
123 == null  // false

// It is often better to use strict comparison
0 === false // false
0 === null  // false
		return $this->injectExtraFields($albums, $userId, $everyAlbumIncluded);
	}

	/**
	 * Returns all albums filtered by name of album or artist
	 * @return Album[]
	 */
	public function findAllByNameRecursive(string $name, string $userId, ?int $limit=null, ?int $offset=null) : array {
		$name = \trim($name);
		$albums = $this->mapper->findAllByNameRecursive($name, $userId, $limit, $offset);
		return $this->injectExtraFields($albums, $userId);
	}

	/**
	 * Returns all albums filtered by artist (both album and track artists are considered)
	 * @return Album[] albums
	 */
	public function findAllByArtist(int $artistId, string $userId, ?int $limit=null, ?int $offset=null) : array {
		$albums = $this->mapper->findAllByArtist($artistId, $userId, $limit, $offset);
		return $this->injectExtraFields($albums, $userId);
	}

	/**
	 * Returns all albums filtered by album artist
	 * @param int|int[] $artistId
	 * @return Album[] albums
	 */
	public function findAllByAlbumArtist(/*mixed*/ $artistId, string $userId, ?int $limit=null, ?int $offset=null) : array {
		if (empty($artistId)) {
			return [];
		} else {
			if (!\is_array($artistId)) {
				$artistId = [$artistId];
			}
			$albums = $this->mapper->findAllByAlbumArtist($artistId, $userId, $limit, $offset);
			$albums = $this->injectExtraFields($albums, $userId);
			\usort($albums, ['\OCA\Music\Db\Album', 'compareYearAndName']);
			return $albums;
		}
	}

	/**
	 * Returns all albums filtered by genre
	 * @param int $genreId the genre to include
	 * @param string $userId the name of the user
	 * @param int|null $limit
	 * @param int|null $offset
	 * @return Album[] albums
	 */
	public function findAllByGenre(int $genreId, string $userId, ?int $limit=null, ?int $offset=null) : array {
		$albums = $this->mapper->findAllByGenre($genreId, $userId, $limit, $offset);
		return $this->injectExtraFields($albums, $userId);
	}

	/**
	 * Returns all albums filtered by release year
	 * @param int $fromYear
	 * @param int $toYear
	 * @param string $userId the name of the user
	 * @param int|null $limit
	 * @param int|null $offset
	 * @return Album[] albums
	 */
	public function findAllByYearRange(
			int $fromYear, int $toYear, string $userId, ?int $limit=null, ?int $offset=null) : array {
		$reverseOrder = false;
		if ($fromYear > $toYear) {
			$reverseOrder = true;
			Util::swap($fromYear, $toYear);
		}

		// Implement all the custom logic of this function here, without special Mapper function
		$albums = \array_filter($this->findAll($userId), function ($album) use ($fromYear, $toYear) {
			$years = $album->getYears();
			return (!empty($years) && \min($years) <= $toYear && \max($years) >= $fromYear);
		});

		\usort($albums, function ($album1, $album2) use ($reverseOrder) {
			return $reverseOrder
				? $album2->yearToAPI() - $album1->yearToAPI()
				: $album1->yearToAPI() - $album2->yearToAPI();
		});

		if ($limit !== null || $offset !== null) {
			$albums = \array_slice($albums, $offset ?: 0, $limit);
		}

		return $albums;
	}

	/**
	 * {@inheritdoc}
	 * @see BusinessLayer::findAllByName()
	 * @return Album[]
	 */
	public function findAllByName(
			?string $name, string $userId, int $matchMode=MatchMode::Exact, ?int $limit=null, ?int $offset=null,
			?string $createdMin=null, ?string $createdMax=null, ?string $updatedMin=null, ?string $updatedMax=null) : array {
		$albums = parent::findAllByName($name, $userId, $matchMode, $limit, $offset, $createdMin, $createdMax, $updatedMin, $updatedMax);
		return $this->injectExtraFields($albums, $userId);
	}

	/**
	 * {@inheritdoc}
	 * @see BusinessLayer::findAllStarred()
	 * @return Album[]
	 */
	public function findAllStarred(string $userId, ?int $limit=null, ?int $offset=null) : array {
		$albums = parent::findAllStarred($userId, $limit, $offset);
		return $this->injectExtraFields($albums, $userId);
	}

	/**
	 * {@inheritdoc}
	 * @see BusinessLayer::findAllRated()
	 * @return Album[]
	 */
	public function findAllRated(string $userId, ?int $limit=null, ?int $offset=null) : array {
		$albums = $this->mapper->findAllRated($userId, $limit, $offset);
		return $this->injectExtraFields($albums, $userId);
	}

	/**
	 * {@inheritdoc}
	 * @see BusinessLayer::findAllByName()
	 * @return Album[]
	 */
	public function findAllAdvanced(string $conjunction, array $rules, string $userId, ?int $limit=null, ?int $offset=null) : array {
		$albums = parent::findAllAdvanced($conjunction, $rules, $userId, $limit, $offset);
		return $this->injectExtraFields($albums, $userId);
	}

	/**
	 * Find most frequently played albums, judged by the total play count of the contained tracks
	 * @return Album[]
	 */
	public function findFrequentPlay(string $userId, ?int $limit=null, ?int $offset=null) : array {
		$countsPerAlbum = $this->mapper->getAlbumTracksPlayCount($userId, $limit, $offset);
		$ids = \array_keys($countsPerAlbum);
		return $this->findById($ids, $userId, /*preserveOrder=*/true);
	}

	/**
	 * Find most recently played albums
	 * @return Album[]
	 */
	public function findRecentPlay(string $userId, ?int $limit=null, ?int $offset=null) : array {
		$playTimePerAlbum = $this->mapper->getLatestAlbumPlayTimes($userId, $limit, $offset);
		$ids = \array_keys($playTimePerAlbum);
		return $this->findById($ids, $userId, /*preserveOrder=*/true);
	}

	/**
	 * Find least recently played albums
	 * @return Album[]
	 */
	public function findNotRecentPlay(string $userId, ?int $limit=null, ?int $offset=null) : array {
		$playTimePerAlbum = $this->mapper->getFurthestAlbumPlayTimes($userId, $limit, $offset);
		$ids = \array_keys($playTimePerAlbum);
		return $this->findById($ids, $userId, /*preserveOrder=*/true);
	}

	/**
	 * Add performing artists, release years, genres, and disk counts to the given album objects
	 * @param Album[] $albums
	 * @param string $userId
	 * @param bool $allAlbums Set to true if $albums contains all albums of the user.
	 *                        This has now effect on the outcome but helps in optimizing
	 *                        the database query.
	 * @return Album[]
	 */
	private function injectExtraFields(array $albums, string $userId, bool $allAlbums = false) : array {
		if (\count($albums) > 0) {
			// In case we are injecting data to a lot of albums, do not limit the
			// SQL SELECTs to only those albums. Very large amount of SQL host parameters
			// could cause problems with SQLite (see #239) and probably it would be bad for
			// performance also on other DBMSs. For the proper operation of this function,
			// it doesn't matter if we fetch data for some extra albums.
			$albumIds = ($allAlbums || \count($albums) >= self::MAX_SQL_ARGS)
					? null : Util::extractIds($albums);

			$artists = $this->mapper->getPerformingArtistsByAlbumId($albumIds, $userId);
			$years = $this->mapper->getYearsByAlbumId($albumIds, $userId);
			$diskCounts = $this->mapper->getDiscCountByAlbumId($albumIds, $userId);
			$genres = $this->mapper->getGenresByAlbumId($albumIds, $userId);

			foreach ($albums as &$album) {
				$albumId = $album->getId();
				$album->setArtistIds($artists[$albumId] ?? []);
				$album->setNumberOfDisks($diskCounts[$albumId] ?? 1);
				$album->setGenres($genres[$albumId] ?? null);
				$album->setYears($years[$albumId] ?? null);
			}
		}
		return $albums;
	}

	/**
	 * Returns the count of albums where the given Artist is featured in
	 * @param integer $artistId
	 * @return integer
	 */
	public function countByArtist(int $artistId) : int {
		return $this->mapper->countByArtist($artistId);
	}

	/**
	 * Returns the count of albums where the given artist is the album artist
	 * @param integer $artistId
	 * @return integer
	 */
	public function countByAlbumArtist(int $artistId) : int {
		return $this->mapper->countByAlbumArtist($artistId);
	}

	public function findAlbumOwner(int $albumId) : string {
		$entities = $this->findById([$albumId]);
		if (\count($entities) != 1) {
			throw new BusinessLayerException(
					'Expected to find one album but got ' . \count($entities));
		} else {
			return $entities[0]->getUserId();
		}
	}

	/**
	 * Adds an album if it does not exist already or updates an existing album
	 * @param string|null $name the name of the album
	 * @param integer $albumArtistId
	 * @param string $userId
	 * @return Album The added/updated album
	 */
	public function addOrUpdateAlbum(?string $name, int $albumArtistId, string $userId) : Album {
		$album = new Album();
		$album->setName(Util::truncate($name, 256)); // some DB setups can't truncate automatically to column max size
		$album->setUserId($userId);
		$album->setAlbumArtistId($albumArtistId);

		// Generate hash from the set of fields forming the album identity to prevent duplicates.
		// The uniqueness of album name is evaluated in case-insensitive manner.
		$lowerName = \mb_strtolower($album->getName() ?? '');
		$hash = \hash('md5', "$lowerName|$albumArtistId");
		$album->setHash($hash);

		return $this->mapper->updateOrInsert($album);
	}

	/**
	 * Check if given file is used as cover for the given album
	 * @param int $albumId
	 * @param int[] $fileIds
	 * @return boolean
	 */
	public function albumCoverIsOneOfFiles(int $albumId, array $fileIds) : bool {
		$albums = $this->findById([$albumId]);
		return (\count($albums) && \in_array($albums[0]->getCoverFileId(), $fileIds));
	}

	/**
	 * updates the cover for albums in the specified folder without cover
	 * @param integer $coverFileId the file id of the cover image
	 * @param integer $folderId the file id of the folder where the albums are looked from
	 * @return boolean True if one or more albums were influenced
	 */
	public function updateFolderCover(int $coverFileId, int $folderId) : bool {
		return $this->mapper->updateFolderCover($coverFileId, $folderId);
	}

	/**
	 * set cover file for a specified album
	 * @param int|null $coverFileId the file id of the cover image
	 * @param int $albumId the id of the album to be modified
	 */
	public function setCover(?int $coverFileId, int $albumId) {
		$this->mapper->setCover($coverFileId, $albumId);
	}

	/**
	 * removes the cover art from albums, replacement covers will be searched in a background task
	 * @param integer[] $coverFileIds the file IDs of the cover images
	 * @param string[]|null $userIds the users whose music library is targeted; all users are targeted if omitted
	 * @return Album[] albums which got modified, empty array if none
	 */
	public function removeCovers(array $coverFileIds, array $userIds=null) : array {
		return $this->mapper->removeCovers($coverFileIds, $userIds);
	}

	/**
	 * try to find cover arts for albums without covers
	 * @param string|null $userId target user; omit to target all users
	 * @return string[] users whose collections got modified
	 */
	public function findCovers(string $userId = null) : array {
		$affectedUsers = [];
		$albums = $this->mapper->getAlbumsWithoutCover($userId);
		foreach ($albums as $album) {
			if ($this->mapper->findAlbumCover($album['albumId'], $album['parentFolderId'])) {
				$affectedUsers[$album['userId']] = 1;
			}
		}
		return \array_keys($affectedUsers);
	}

	/**
	 * Given an array of track IDs, find corresponding unique album IDs, including only
	 * those album which have a cover art set.
	 * @param int[] $trackIds
	 * @return Album[] *Partial* albums, without any injected extra fields
	 */
	public function findAlbumsWithCoversForTracks(array $trackIds, string $userId, int $limit) : array {
		if (\count($trackIds) === 0) {
			return [];
		} else {
			$result = [];
			$idChunks = \array_chunk($trackIds, self::MAX_SQL_ARGS - 1);
			foreach ($idChunks as $idChunk) {
				$resultChunk = $this->mapper->findAlbumsWithCoversForTracks($idChunk, $userId, $limit);
				$result = \array_merge($result, $resultChunk);
				$limit -= \count($resultChunk);
				if ($limit <= 0) {
					break;
				}
			}
			return $result;
		}
	}

	/**
	 * Given an array of Track objects, inject the corresponding Album object to each of them
	 * @param Track[] $tracks (in|out)
	 */
	public function injectAlbumsToTracks(array &$tracks, string $userId) {
		$albumIds = [];

		// get unique album IDs
		foreach ($tracks as $track) {
			$albumIds[$track->getAlbumId()] = 1;
		}
		$albumIds = \array_keys($albumIds);

		// get the corresponding entities from the business layer
		if (\count($albumIds) < self::MAX_SQL_ARGS && \count($albumIds) < $this->count($userId)) {
			$albums = $this->findById($albumIds, $userId);
		} else {
			$albums = $this->findAll($userId);
		}

		// create hash tables "id => entity" for the albums for fast access
		$albumMap = Util::createIdLookupTable($albums);

		// finally, set the references on the tracks
		foreach ($tracks as &$track) {
			$track->setAlbum($albumMap[$track->getAlbumId()] ?? new Album());
		}
	}
}


1			<?php declare(strict_types=1);
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 - 2023
13			*/
14
15			namespace OCA\Music\BusinessLayer;
16
17			use OCA\Music\AppFramework\BusinessLayer\BusinessLayer;
18			use OCA\Music\AppFramework\BusinessLayer\BusinessLayerException;
19			use OCA\Music\AppFramework\Core\Logger;
20
21			use OCA\Music\Db\AlbumMapper;
22			use OCA\Music\Db\Album;
23			use OCA\Music\Db\Entity;
24			use OCA\Music\Db\MatchMode;
25			use OCA\Music\Db\SortBy;
26			use OCA\Music\Db\Track;
27
28			use OCA\Music\Utility\Util;
29
30			/**
31			* Base class functions with the actually used inherited types to help IDE and Scrutinizer:
32			* @phpstan-extends BusinessLayer<Album>
33			*/
34			class AlbumBusinessLayer extends BusinessLayer {
35			protected $mapper; // eclipse the definition from the base class, to help IDE and Scrutinizer to know the actual type
36			private $logger;
37
38			public function __construct(AlbumMapper $albumMapper, Logger $logger) {
39			parent::__construct($albumMapper);
40			$this->mapper = $albumMapper;
41			$this->logger = $logger;
42			}
43
44			/**
45			* {@inheritdoc}
46			* @see BusinessLayer::find()
47			* @return Album
48			*/
49			public function find(int $albumId, string $userId) : Entity {
50			$album = parent::find($albumId, $userId);
51			return $this->injectExtraFields([$album], $userId)[0];
52			}
53
54			/**
55			* {@inheritdoc}
56			* @see BusinessLayer::findById()
57			* @return Album[]
58			*/
59			public function findById(array $ids, string $userId=null, bool $preserveOrder=false) : array {
60			$albums = parent::findById($ids, $userId, $preserveOrder);
61			if ($userId !== null) {
62			return $this->injectExtraFields($albums, $userId);
63			} else {
64			return $albums; // can't inject the extra fields without a user
65			}
66			}
67
68			/**
69			* {@inheritdoc}
70			* @see BusinessLayer::findAll()
71			* @return Album[]
72			*/
73			public function findAll(string $userId, int $sortBy=SortBy::None, ?int $limit=null, ?int $offset=null,
74			?string $createdMin=null, ?string $createdMax=null, ?string $updatedMin=null, ?string $updatedMax=null) : array {
75			$albums = parent::findAll($userId, $sortBy, $limit, $offset, $createdMin, $createdMax, $updatedMin, $updatedMax);
76			$effectivelyLimited = ($limit !== null && $limit < \count($albums));
77			$everyAlbumIncluded = (!$effectivelyLimited && !$offset && !$createdMin && !$createdMax && !$updatedMin && !$updatedMax);
			0 ignored issues – show Bug Best Practice introduced 2021-07-28 13:57 UTC by Report Bug Copy Issue Report The expression `$offset` of type `integer\|null` is loosely compared to `false`; this is ambiguous if the integer can be 0. You might want to explicitly use `=== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `integer` values, zero is a special case, in particular the following results might be unexpected: 0 == false // true 0 == null // true 123 == false // false 123 == null // false // It is often better to use strict comparison 0 === false // false 0 === null // false Loading history...
78			return $this->injectExtraFields($albums, $userId, $everyAlbumIncluded);
79			}
80
81			/**
82			* Returns all albums filtered by name of album or artist
83			* @return Album[]
84			*/
85			public function findAllByNameRecursive(string $name, string $userId, ?int $limit=null, ?int $offset=null) : array {
86			$name = \trim($name);
87			$albums = $this->mapper->findAllByNameRecursive($name, $userId, $limit, $offset);
88			return $this->injectExtraFields($albums, $userId);
89			}
90
91			/**
92			* Returns all albums filtered by artist (both album and track artists are considered)
93			* @return Album[] albums
94			*/
95			public function findAllByArtist(int $artistId, string $userId, ?int $limit=null, ?int $offset=null) : array {
96			$albums = $this->mapper->findAllByArtist($artistId, $userId, $limit, $offset);
97			return $this->injectExtraFields($albums, $userId);
98			}
99
100			/**
101			* Returns all albums filtered by album artist
102			* @param int\|int[] $artistId
103			* @return Album[] albums
104			*/
105			public function findAllByAlbumArtist(/mixed/ $artistId, string $userId, ?int $limit=null, ?int $offset=null) : array {
106			if (empty($artistId)) {
107			return [];
108			} else {
109			if (!\is_array($artistId)) {
110			$artistId = [$artistId];
111			}
112			$albums = $this->mapper->findAllByAlbumArtist($artistId, $userId, $limit, $offset);
113			$albums = $this->injectExtraFields($albums, $userId);
114			\usort($albums, ['\OCA\Music\Db\Album', 'compareYearAndName']);
115			return $albums;
116			}
117			}
118
119			/**
120			* Returns all albums filtered by genre
121			* @param int $genreId the genre to include
122			* @param string $userId the name of the user
123			* @param int\|null $limit
124			* @param int\|null $offset
125			* @return Album[] albums
126			*/
127			public function findAllByGenre(int $genreId, string $userId, ?int $limit=null, ?int $offset=null) : array {
128			$albums = $this->mapper->findAllByGenre($genreId, $userId, $limit, $offset);
129			return $this->injectExtraFields($albums, $userId);
130			}
131
132			/**
133			* Returns all albums filtered by release year
134			* @param int $fromYear
135			* @param int $toYear
136			* @param string $userId the name of the user
137			* @param int\|null $limit
138			* @param int\|null $offset
139			* @return Album[] albums
140			*/
141			public function findAllByYearRange(
142			int $fromYear, int $toYear, string $userId, ?int $limit=null, ?int $offset=null) : array {
143			$reverseOrder = false;
144			if ($fromYear > $toYear) {
145			$reverseOrder = true;
146			Util::swap($fromYear, $toYear);
147			}
148
149			// Implement all the custom logic of this function here, without special Mapper function
150			$albums = \array_filter($this->findAll($userId), function ($album) use ($fromYear, $toYear) {
151			$years = $album->getYears();
152			return (!empty($years) && \min($years) <= $toYear && \max($years) >= $fromYear);
153			});
154
155			\usort($albums, function ($album1, $album2) use ($reverseOrder) {
156			return $reverseOrder
157			? $album2->yearToAPI() - $album1->yearToAPI()
158			: $album1->yearToAPI() - $album2->yearToAPI();
159			});
160
161			if ($limit !== null \|\| $offset !== null) {
162			$albums = \array_slice($albums, $offset ?: 0, $limit);
163			}
164
165			return $albums;
166			}
167
168			/**
169			* {@inheritdoc}
170			* @see BusinessLayer::findAllByName()
171			* @return Album[]
172			*/
173			public function findAllByName(
174			?string $name, string $userId, int $matchMode=MatchMode::Exact, ?int $limit=null, ?int $offset=null,
175			?string $createdMin=null, ?string $createdMax=null, ?string $updatedMin=null, ?string $updatedMax=null) : array {
176			$albums = parent::findAllByName($name, $userId, $matchMode, $limit, $offset, $createdMin, $createdMax, $updatedMin, $updatedMax);
177			return $this->injectExtraFields($albums, $userId);
178			}
179
180			/**
181			* {@inheritdoc}
182			* @see BusinessLayer::findAllStarred()
183			* @return Album[]
184			*/
185			public function findAllStarred(string $userId, ?int $limit=null, ?int $offset=null) : array {
186			$albums = parent::findAllStarred($userId, $limit, $offset);
187			return $this->injectExtraFields($albums, $userId);
188			}
189
190			/**
191			* {@inheritdoc}
192			* @see BusinessLayer::findAllRated()
193			* @return Album[]
194			*/
195			public function findAllRated(string $userId, ?int $limit=null, ?int $offset=null) : array {
196			$albums = $this->mapper->findAllRated($userId, $limit, $offset);
197			return $this->injectExtraFields($albums, $userId);
198			}
199
200			/**
201			* {@inheritdoc}
202			* @see BusinessLayer::findAllByName()
203			* @return Album[]
204			*/
205			public function findAllAdvanced(string $conjunction, array $rules, string $userId, ?int $limit=null, ?int $offset=null) : array {
206			$albums = parent::findAllAdvanced($conjunction, $rules, $userId, $limit, $offset);
207			return $this->injectExtraFields($albums, $userId);
208			}
209
210			/**
211			* Find most frequently played albums, judged by the total play count of the contained tracks
212			* @return Album[]
213			*/
214			public function findFrequentPlay(string $userId, ?int $limit=null, ?int $offset=null) : array {
215			$countsPerAlbum = $this->mapper->getAlbumTracksPlayCount($userId, $limit, $offset);
216			$ids = \array_keys($countsPerAlbum);
217			return $this->findById($ids, $userId, /preserveOrder=/true);
218			}
219
220			/**
221			* Find most recently played albums
222			* @return Album[]
223			*/
224			public function findRecentPlay(string $userId, ?int $limit=null, ?int $offset=null) : array {
225			$playTimePerAlbum = $this->mapper->getLatestAlbumPlayTimes($userId, $limit, $offset);
226			$ids = \array_keys($playTimePerAlbum);
227			return $this->findById($ids, $userId, /preserveOrder=/true);
228			}
229
230			/**
231			* Find least recently played albums
232			* @return Album[]
233			*/
234			public function findNotRecentPlay(string $userId, ?int $limit=null, ?int $offset=null) : array {
235			$playTimePerAlbum = $this->mapper->getFurthestAlbumPlayTimes($userId, $limit, $offset);
236			$ids = \array_keys($playTimePerAlbum);
237			return $this->findById($ids, $userId, /preserveOrder=/true);
238			}
239
240			/**
241			* Add performing artists, release years, genres, and disk counts to the given album objects
242			* @param Album[] $albums
243			* @param string $userId
244			* @param bool $allAlbums Set to true if $albums contains all albums of the user.
245			* This has now effect on the outcome but helps in optimizing
246			* the database query.
247			* @return Album[]
248			*/
249			private function injectExtraFields(array $albums, string $userId, bool $allAlbums = false) : array {
250			if (\count($albums) > 0) {
251			// In case we are injecting data to a lot of albums, do not limit the
252			// SQL SELECTs to only those albums. Very large amount of SQL host parameters
253			// could cause problems with SQLite (see #239) and probably it would be bad for
254			// performance also on other DBMSs. For the proper operation of this function,
255			// it doesn't matter if we fetch data for some extra albums.
256			$albumIds = ($allAlbums \|\| \count($albums) >= self::MAX_SQL_ARGS)
257			? null : Util::extractIds($albums);
258
259			$artists = $this->mapper->getPerformingArtistsByAlbumId($albumIds, $userId);
260			$years = $this->mapper->getYearsByAlbumId($albumIds, $userId);
261			$diskCounts = $this->mapper->getDiscCountByAlbumId($albumIds, $userId);
262			$genres = $this->mapper->getGenresByAlbumId($albumIds, $userId);
263
264			foreach ($albums as &$album) {
265			$albumId = $album->getId();
266			$album->setArtistIds($artists[$albumId] ?? []);
267			$album->setNumberOfDisks($diskCounts[$albumId] ?? 1);
268			$album->setGenres($genres[$albumId] ?? null);
269			$album->setYears($years[$albumId] ?? null);
270			}
271			}
272			return $albums;
273			}
274
275			/**
276			* Returns the count of albums where the given Artist is featured in
277			* @param integer $artistId
278			* @return integer
279			*/
280			public function countByArtist(int $artistId) : int {
281			return $this->mapper->countByArtist($artistId);
282			}
283
284			/**
285			* Returns the count of albums where the given artist is the album artist
286			* @param integer $artistId
287			* @return integer
288			*/
289			public function countByAlbumArtist(int $artistId) : int {
290			return $this->mapper->countByAlbumArtist($artistId);
291			}
292
293			public function findAlbumOwner(int $albumId) : string {
294			$entities = $this->findById([$albumId]);
295			if (\count($entities) != 1) {
296			throw new BusinessLayerException(
297			'Expected to find one album but got ' . \count($entities));
298			} else {
299			return $entities[0]->getUserId();
300			}
301			}
302
303			/**
304			* Adds an album if it does not exist already or updates an existing album
305			* @param string\|null $name the name of the album
306			* @param integer $albumArtistId
307			* @param string $userId
308			* @return Album The added/updated album
309			*/
310			public function addOrUpdateAlbum(?string $name, int $albumArtistId, string $userId) : Album {
311			$album = new Album();
312			$album->setName(Util::truncate($name, 256)); // some DB setups can't truncate automatically to column max size
313			$album->setUserId($userId);
314			$album->setAlbumArtistId($albumArtistId);
315
316			// Generate hash from the set of fields forming the album identity to prevent duplicates.
317			// The uniqueness of album name is evaluated in case-insensitive manner.
318			$lowerName = \mb_strtolower($album->getName() ?? '');
319			$hash = \hash('md5', "$lowerName\|$albumArtistId");
320			$album->setHash($hash);
321
322			return $this->mapper->updateOrInsert($album);
323			}
324
325			/**
326			* Check if given file is used as cover for the given album
327			* @param int $albumId
328			* @param int[] $fileIds
329			* @return boolean
330			*/
331			public function albumCoverIsOneOfFiles(int $albumId, array $fileIds) : bool {
332			$albums = $this->findById([$albumId]);
333			return (\count($albums) && \in_array($albums[0]->getCoverFileId(), $fileIds));
334			}
335
336			/**
337			* updates the cover for albums in the specified folder without cover
338			* @param integer $coverFileId the file id of the cover image
339			* @param integer $folderId the file id of the folder where the albums are looked from
340			* @return boolean True if one or more albums were influenced
341			*/
342			public function updateFolderCover(int $coverFileId, int $folderId) : bool {
343			return $this->mapper->updateFolderCover($coverFileId, $folderId);
344			}
345
346			/**
347			* set cover file for a specified album
348			* @param int\|null $coverFileId the file id of the cover image
349			* @param int $albumId the id of the album to be modified
350			*/
351			public function setCover(?int $coverFileId, int $albumId) {
352			$this->mapper->setCover($coverFileId, $albumId);
353			}
354
355			/**
356			* removes the cover art from albums, replacement covers will be searched in a background task
357			* @param integer[] $coverFileIds the file IDs of the cover images
358			* @param string[]\|null $userIds the users whose music library is targeted; all users are targeted if omitted
359			* @return Album[] albums which got modified, empty array if none
360			*/
361			public function removeCovers(array $coverFileIds, array $userIds=null) : array {
362			return $this->mapper->removeCovers($coverFileIds, $userIds);
363			}
364
365			/**
366			* try to find cover arts for albums without covers
367			* @param string\|null $userId target user; omit to target all users
368			* @return string[] users whose collections got modified
369			*/
370			public function findCovers(string $userId = null) : array {
371			$affectedUsers = [];
372			$albums = $this->mapper->getAlbumsWithoutCover($userId);
373			foreach ($albums as $album) {
374			if ($this->mapper->findAlbumCover($album['albumId'], $album['parentFolderId'])) {
375			$affectedUsers[$album['userId']] = 1;
376			}
377			}
378			return \array_keys($affectedUsers);
379			}
380
381			/**
382			* Given an array of track IDs, find corresponding unique album IDs, including only
383			* those album which have a cover art set.
384			* @param int[] $trackIds
385			* @return Album[] Partial albums, without any injected extra fields
386			*/
387			public function findAlbumsWithCoversForTracks(array $trackIds, string $userId, int $limit) : array {
388			if (\count($trackIds) === 0) {
389			return [];
390			} else {
391			$result = [];
392			$idChunks = \array_chunk($trackIds, self::MAX_SQL_ARGS - 1);
393			foreach ($idChunks as $idChunk) {
394			$resultChunk = $this->mapper->findAlbumsWithCoversForTracks($idChunk, $userId, $limit);
395			$result = \array_merge($result, $resultChunk);
396			$limit -= \count($resultChunk);
397			if ($limit <= 0) {
398			break;
399			}
400			}
401			return $result;
402			}
403			}
404
405			/**
406			* Given an array of Track objects, inject the corresponding Album object to each of them
407			* @param Track[] $tracks (in\|out)
408			*/
409			public function injectAlbumsToTracks(array &$tracks, string $userId) {
410			$albumIds = [];
411
412			// get unique album IDs
413			foreach ($tracks as $track) {
414			$albumIds[$track->getAlbumId()] = 1;
415			}
416			$albumIds = \array_keys($albumIds);
417
418			// get the corresponding entities from the business layer
419			if (\count($albumIds) < self::MAX_SQL_ARGS && \count($albumIds) < $this->count($userId)) {
420			$albums = $this->findById($albumIds, $userId);
421			} else {
422			$albums = $this->findAll($userId);
423			}
424
425			// create hash tables "id => entity" for the albums for fast access
426			$albumMap = Util::createIdLookupTable($albums);
427
428			// finally, set the references on the tracks
429			foreach ($tracks as &$track) {
430			$track->setAlbum($albumMap[$track->getAlbumId()] ?? new Album());
431			}
432			}
433			}
434

owncloud / music

Push — feature/909_Ampache_API_improv... ( e0770e...e4874b )

AlbumBusinessLayer::findAllRated() A

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