121 lines
3.9 KiB
PHP
121 lines
3.9 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2022 Varun Patil <radialapps@gmail.com>
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* @author Varun Patil <radialapps@gmail.com>
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* @license AGPL-3.0-or-later
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace OCA\Memories\ClustersBackend;
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use OCA\Memories\Db\TimelineQuery;
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use OCA\Memories\Util;
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use OCP\DB\QueryBuilder\IQueryBuilder;
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use OCP\IRequest;
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class PlacesBackend extends Backend
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{
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protected TimelineQuery $tq;
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protected IRequest $request;
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public function __construct(TimelineQuery $tq, IRequest $request)
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{
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$this->tq = $tq;
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$this->request = $request;
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}
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public function appName(): string
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{
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return 'Places';
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}
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public function isEnabled(): bool
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{
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return Util::placesGISType() > 0;
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}
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public function transformDays(IQueryBuilder &$query, bool $aggregate): void
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{
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$locationId = (int) $this->request->getParam('places');
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$query->innerJoin('m', 'memories_places', 'mp', $query->expr()->andX(
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$query->expr()->eq('mp.fileid', 'm.fileid'),
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$query->expr()->eq('mp.osm_id', $query->createNamedParameter($locationId)),
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));
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}
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public function getClusters(): array
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{
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$query = $this->tq->getBuilder();
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// SELECT location name and count of photos
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$count = $query->func()->count($query->createFunction('DISTINCT m.fileid'), 'count');
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$query->select('e.osm_id', 'e.name', $count)->from('memories_planet', 'e');
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// WHERE there are items with this osm_id
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$query->innerJoin('e', 'memories_places', 'mp', $query->expr()->eq('mp.osm_id', 'e.osm_id'));
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// WHERE these items are memories indexed photos
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$query->innerJoin('mp', 'memories', 'm', $query->expr()->eq('m.fileid', 'mp.fileid'));
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// WHERE these photos are in the user's requested folder recursively
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$query = $this->tq->joinFilecache($query);
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// GROUP and ORDER by tag name
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$query->groupBy('e.osm_id', 'e.name');
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$query->orderBy($query->createFunction('LOWER(e.name)'), 'ASC');
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$query->addOrderBy('e.osm_id'); // tie-breaker
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// FETCH all tags
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$cursor = $this->tq->executeQueryWithCTEs($query);
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$places = $cursor->fetchAll();
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// Post process
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foreach ($places as &$row) {
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$row['osm_id'] = (int) $row['osm_id'];
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$row['count'] = (int) $row['count'];
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}
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return $places;
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}
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public function getPhotos(string $name, ?int $limit = null): array
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{
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$query = $this->tq->getBuilder();
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// SELECT all photos with this tag
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$query->select('f.fileid', 'f.etag')->from('memories_places', 'mp')
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->where($query->expr()->eq('mp.osm_id', $query->createNamedParameter((int) $name)))
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;
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// WHERE these items are memories indexed photos
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$query->innerJoin('mp', 'memories', 'm', $query->expr()->eq('m.fileid', 'mp.fileid'));
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// WHERE these photos are in the user's requested folder recursively
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$query = $this->tq->joinFilecache($query);
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// MAX number of photos
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if (null !== $limit) {
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$query->setMaxResults($limit);
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}
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// FETCH tag photos
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return $this->tq->executeQueryWithCTEs($query)->fetchAll() ?: [];
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}
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}
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