andWhere( $query->expr()->andX( $query->expr()->gte($latCol, $query->createNamedParameter($bounds[0], IQueryBuilder::PARAM_STR)), $query->expr()->lte($latCol, $query->createNamedParameter($bounds[1], IQueryBuilder::PARAM_STR)), $query->expr()->gte($lonCol, $query->createNamedParameter($bounds[2], IQueryBuilder::PARAM_STR)), $query->expr()->lte($lonCol, $query->createNamedParameter($bounds[3], IQueryBuilder::PARAM_STR)), ), ); } public function getMapClusters(float $gridLen, string $bounds): array { $query = $this->connection->getQueryBuilder(); // Get the average location of each cluster $query->selectAlias($query->createFunction('MAX(c.id)'), 'id') ->selectAlias($query->createFunction('COUNT(m.fileid)'), 'count') ->selectAlias($query->createFunction('AVG(c.lat)'), 'lat') ->selectAlias($query->createFunction('AVG(c.lon)'), 'lon') ->from('memories_mapclusters', 'c') ; // Coarse grouping $gridParam = $query->createNamedParameter($gridLen, IQueryBuilder::PARAM_STR); $query->addGroupBy($query->createFunction("FLOOR(c.lat / {$gridParam})")) ->addGroupBy($query->createFunction("FLOOR(c.lon / {$gridParam})")) ; // JOIN with memories for files from the current user $query->innerJoin('c', 'memories', 'm', $query->expr()->eq('c.id', 'm.mapcluster')); // JOIN with filecache for existing files $query = $this->joinFilecache($query); // Bound the query to the map bounds $this->transformMapBoundsFilter($query, false, $bounds, 'c'); // Execute query $res = $this->executeQueryWithCTEs($query)->fetchAll(); // Post-process results $clusters = []; foreach ($res as &$cluster) { $c = [ 'center' => [ (float) $cluster['lat'], (float) $cluster['lon'], ], 'count' => (float) $cluster['count'], ]; if (\array_key_exists('id', $cluster)) { $c['id'] = (int) $cluster['id']; } $clusters[] = $c; } return $clusters; } /** * Gets previews for a list of map clusters. * * @param int[] $clusterIds */ public function getMapClusterPreviews(array $clusterIds): array { $query = $this->connection->getQueryBuilder(); // SELECT all photos with this tag $query->selectAlias($query->createFunction('MAX(m.fileid)'), 'fileid') ->from('memories', 'm') ->where($query->expr()->in('m.mapcluster', $query->createNamedParameter( $clusterIds, IQueryBuilder::PARAM_INT_ARRAY, ))) ; // WHERE these photos are in the user's requested folder recursively $query = $this->joinFilecache($query); // GROUP BY the cluster $query->groupBy('m.mapcluster'); // Get the fileIds $cursor = $this->executeQueryWithCTEs($query); $fileIds = $cursor->fetchAll(\PDO::FETCH_COLUMN); // SELECT these files from the filecache $query = $this->connection->getQueryBuilder(); $query->select('m.fileid', 'm.dayid', 'm.mapcluster', 'm.h', 'm.w', 'f.etag') ->from('memories', 'm') ->innerJoin('m', 'filecache', 'f', $query->expr()->eq('m.fileid', 'f.fileid')) ->where($query->expr()->in('m.fileid', $query->createNamedParameter($fileIds, IQueryBuilder::PARAM_INT_ARRAY))) ; $files = $query->executeQuery()->fetchAll(); // Post-process foreach ($files as &$row) { $row['fileid'] = (int) $row['fileid']; $row['mapcluster'] = (int) $row['mapcluster']; $row['dayid'] = (int) $row['dayid']; $row['h'] = (int) $row['h']; $row['w'] = (int) $row['w']; } return $files; } /** * Gets the suggested initial coordinates for the map. * Uses the coordinates of the newest photo (by date). * * @psalm-return array{lat: float, lon: float}|null */ public function getMapInitialPosition(): ?array { $query = $this->connection->getQueryBuilder(); // SELECT coordinates $query->select('m.lat', 'm.lon')->from('memories', 'm'); // WHERE this photo is in the user's requested folder recursively $query = $this->joinFilecache($query); // WHERE this photo has coordinates $query->where($query->expr()->andX( $query->expr()->isNotNull('m.lat'), $query->expr()->isNotNull('m.lon'), )); // ORDER BY datetaken DESC $query->orderBy('m.datetaken', 'DESC'); // LIMIT 1 $query->setMaxResults(1); // FETCH coordinates $coords = $this->executeQueryWithCTEs($query)->fetch(); return $coords ?: null; } }