memories/lib/Db/TimelineQueryDays.php

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<?php
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declare(strict_types=1);
namespace OCA\Memories\Db;
use OCA\Memories\ClustersBackend;
use OCA\Memories\Exif;
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use OCP\DB\QueryBuilder\IQueryBuilder;
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use OCP\IDBConnection;
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trait TimelineQueryDays
{
use TimelineQueryCTE;
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protected IDBConnection $connection;
/**
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* Get the days response from the database for the timeline.
*
* @param bool $recursive Whether to get the days recursively
* @param bool $archive Whether to get the days only from the archive folder
* @param array $queryTransforms An array of query transforms to apply to the query
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*
* @return array The days response
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*/
public function getDays(
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bool $recursive,
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bool $archive,
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array $queryTransforms = []
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): array {
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$query = $this->connection->getQueryBuilder();
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// Get all entries also present in filecache
$count = $query->func()->count($query->createFunction('DISTINCT m.fileid'), 'count');
$query->select('m.dayid', $count)
->from('memories', 'm')
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;
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// Group and sort by dayid
$query->groupBy('m.dayid')
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->orderBy('m.dayid', 'DESC')
;
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// Apply all transformations
$this->applyAllTransforms($queryTransforms, $query, true);
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// JOIN with filecache for existing files
$query = $this->joinFilecache($query, null, $recursive, $archive);
// FETCH all days
$rows = $this->executeQueryWithCTEs($query)->fetchAll();
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return $this->processDays($rows);
}
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/**
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* Get the day response from the database for the timeline.
*
* @param int[] $day_ids The day ids to fetch
* @param bool $recursive If the query should be recursive
* @param bool $archive If the query should include only the archive folder
* @param bool $hidden If the query should include hidden files
* @param array $queryTransforms The query transformations to apply
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*
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* @return array An array of day responses
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*/
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public function getDay(
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?array $day_ids,
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bool $recursive,
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bool $archive,
bool $hidden,
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array $queryTransforms = []
): array {
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$query = $this->connection->getQueryBuilder();
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// Get all entries also present in filecache
$fileid = $query->createFunction('DISTINCT m.fileid');
// We don't actually use m.datetaken here, but postgres
// needs that all fields in ORDER BY are also in SELECT
// when using DISTINCT on selected fields
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$query->select($fileid, ...TimelineQuery::TIMELINE_SELECT)
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->from('memories', 'm')
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;
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// Add hidden field
if ($hidden) {
$query->addSelect('cte_f.hidden');
}
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// JOIN with mimetypes to get the mimetype
$query->join('f', 'mimetypes', 'mimetypes', $query->expr()->eq('f.mimetype', 'mimetypes.id'));
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// Filter by dayid unless wildcard
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if (null !== $day_ids) {
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$query->andWhere($query->expr()->in('m.dayid', $query->createNamedParameter($day_ids, IQueryBuilder::PARAM_INT_ARRAY)));
} else {
// Limit wildcard to 100 results
$query->setMaxResults(100);
}
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// Add favorite field
$this->addFavoriteTag($query);
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// Group and sort by date taken
$query->orderBy('m.datetaken', 'DESC');
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$query->addOrderBy('m.fileid', 'DESC'); // tie-breaker
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// Apply all transformations
$this->applyAllTransforms($queryTransforms, $query, false);
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// JOIN with filecache for existing files
$query = $this->joinFilecache($query, null, $recursive, $archive, $hidden);
// FETCH all photos in this day
$day = $this->executeQueryWithCTEs($query)->fetchAll();
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// Post process the day in-place
foreach ($day as &$photo) {
$this->processDayPhoto($photo);
}
return $day;
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}
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public function executeQueryWithCTEs(IQueryBuilder $query, string $psql = '')
{
$sql = empty($psql) ? $query->getSQL() : $psql;
$params = $query->getParameters();
$types = $query->getParameterTypes();
// Get SQL
$CTE_SQL = \array_key_exists('cteFoldersArchive', $params)
? self::CTE_FOLDERS_ARCHIVE()
: self::CTE_FOLDERS(\array_key_exists('cteIncludeHidden', $params));
// Add WITH clause if needed
if (false !== strpos($sql, 'cte_folders')) {
$sql = $CTE_SQL.' '.$sql;
}
return $this->connection->executeQuery($sql, $params, $types);
}
/**
* Inner join with oc_filecache.
*
* @param IQueryBuilder $query Query builder
* @param TimelineRoot $root Either the top folder or null for all
* @param bool $recursive Whether to get the days recursively
* @param bool $archive Whether to get the days only from the archive folder
* @param bool $hidden Whether to include hidden files
*/
public function joinFilecache(
IQueryBuilder $query,
?TimelineRoot $root = null,
bool $recursive = true,
bool $archive = false,
bool $hidden = false
): IQueryBuilder {
// This will throw if the root is illegally empty
$root = $this->root($root);
// Join with memories
$baseOp = $query->expr()->eq('f.fileid', 'm.fileid');
if ($root->isEmpty()) {
return $query->innerJoin('m', 'filecache', 'f', $baseOp);
}
// Filter by folder (recursive or otherwise)
$pathOp = null;
if ($recursive) {
// Join with folders CTE
$this->addSubfolderJoinParams($query, $root, $archive, $hidden);
$query->innerJoin('f', 'cte_folders', 'cte_f', $query->expr()->eq('f.parent', 'cte_f.fileid'));
} else {
// If getting non-recursively folder only check for parent
$pathOp = $query->expr()->eq('f.parent', $query->createNamedParameter($root->getOneId(), IQueryBuilder::PARAM_INT));
}
return $query->innerJoin('m', 'filecache', 'f', $query->expr()->andX(
$baseOp,
$pathOp,
));
}
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/**
* Process the days response.
*
* @param array $days
*/
private function processDays($days)
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{
foreach ($days as &$row) {
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$row['dayid'] = (int) $row['dayid'];
$row['count'] = (int) $row['count'];
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}
return $days;
}
/**
* Process the single day response.
*/
private function processDayPhoto(array &$row)
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{
// Convert field types
$row['fileid'] = (int) $row['fileid'];
$row['isvideo'] = (int) $row['isvideo'];
$row['video_duration'] = (int) $row['video_duration'];
$row['dayid'] = (int) $row['dayid'];
$row['w'] = (int) $row['w'];
$row['h'] = (int) $row['h'];
// Optional fields
if (!$row['isvideo']) {
unset($row['isvideo'], $row['video_duration']);
}
if (!$row['liveid']) {
unset($row['liveid']);
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}
// Favorite field, may not be present
if (\array_key_exists('categoryid', $row) && $row['categoryid']) {
$row['isfavorite'] = 1;
}
unset($row['categoryid']);
// Get hidden field if present
if (\array_key_exists('hidden', $row) && $row['hidden']) {
$row['ishidden'] = 1;
}
unset($row['hidden']);
// All cluster transformations
ClustersBackend\Manager::applyDayPostTransforms($this->request, $row);
// This field is only required due to the GROUP BY clause
unset($row['datetaken']);
// Calculate the AUID if we can
if (\array_key_exists('epoch', $row) && \array_key_exists('size', $row)
&& ($epoch = (int) $row['epoch']) && ($size = (int) $row['size'])) {
// compute AUID and discard size
// epoch is used for ordering, so we keep it
$row['auid'] = Exif::getAUID($epoch, $size);
unset($row['size']);
}
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}
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/**
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* Get all folders inside a top folder.
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*/
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private function addSubfolderJoinParams(
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IQueryBuilder &$query,
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TimelineRoot &$root,
bool $archive,
bool $hidden
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) {
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// Add query parameters
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$query->setParameter('topFolderIds', $root->getIds(), IQueryBuilder::PARAM_INT_ARRAY);
if ($archive) {
$query->setParameter('cteFoldersArchive', true, IQueryBuilder::PARAM_BOOL);
}
if ($hidden) {
$query->setParameter('cteIncludeHidden', true, IQueryBuilder::PARAM_BOOL);
}
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}
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}