SubsonicAPI: optimized search for albums

This commit is contained in:
emeric
2023-11-04 16:15:39 +01:00
parent 4089f07c16
commit c4d2d20447
14 changed files with 735 additions and 718 deletions
+152 -127
View File
@@ -34,152 +34,170 @@
namespace Database
{
Wt::Dbo::Query<ReleaseId> createQuery(Session& session, const Release::FindParameters& params)
namespace
{
auto query{ session.getDboSession().query<ReleaseId>("SELECT DISTINCT r.id from release r") };
if (params.sortMethod == ReleaseSortMethod::LastWritten
|| params.sortMethod == ReleaseSortMethod::Date
|| params.sortMethod == ReleaseSortMethod::OriginalDate
|| params.sortMethod == ReleaseSortMethod::OriginalDateDesc
|| params.writtenAfter.isValid()
|| params.dateRange
|| params.artist.isValid()
|| params.clusters.size() == 1)
template <typename ResultType>
Wt::Dbo::Query<ResultType> createQuery(Session& session, std::string_view itemToSelect, const Release::FindParameters& params)
{
query.join("track t ON t.release_id = r.id");
}
auto query{ session.getDboSession().query<ResultType>("SELECT DISTINCT " + std::string{ itemToSelect } + " from release r") };
if (params.writtenAfter.isValid())
query.where("t.file_last_write > ?").bind(params.writtenAfter);
if (params.dateRange)
{
query.where("t.date >= ?").bind(params.dateRange->begin);
query.where("t.date <= ?").bind(params.dateRange->end);
}
for (std::string_view keyword : params.keywords)
query.where("r.name LIKE ? ESCAPE '" ESCAPE_CHAR_STR "'").bind("%" + Utils::escapeLikeKeyword(keyword) + "%");
if (params.starringUser.isValid())
{
assert(params.feedbackBackend);
query.join("starred_release s_r ON s_r.release_id = r.id")
.where("s_r.user_id = ?").bind(params.starringUser)
.where("s_r.backend = ?").bind(*params.feedbackBackend)
.where("s_r.sync_state <> ?").bind(SyncState::PendingRemove);
}
if (params.artist.isValid())
{
query.join("artist a ON a.id = t_a_l.artist_id")
.join("track_artist_link t_a_l ON t_a_l.track_id = t.id")
.where("a.id = ?").bind(params.artist);
if (!params.trackArtistLinkTypes.empty())
if (params.sortMethod == ReleaseSortMethod::LastWritten
|| params.sortMethod == ReleaseSortMethod::Date
|| params.sortMethod == ReleaseSortMethod::OriginalDate
|| params.sortMethod == ReleaseSortMethod::OriginalDateDesc
|| params.writtenAfter.isValid()
|| params.dateRange
|| params.artist.isValid()
|| params.clusters.size() == 1)
{
std::ostringstream oss;
bool first{ true };
for (TrackArtistLinkType linkType : params.trackArtistLinkTypes)
{
if (!first)
oss << " OR ";
oss << "t_a_l.type = ?";
query.bind(linkType);
first = false;
}
query.where(oss.str());
query.join("track t ON t.release_id = r.id");
}
if (!params.excludedTrackArtistLinkTypes.empty())
if (params.writtenAfter.isValid())
query.where("t.file_last_write > ?").bind(params.writtenAfter);
if (params.dateRange)
{
query.where("t.date >= ?").bind(params.dateRange->begin);
query.where("t.date <= ?").bind(params.dateRange->end);
}
for (std::string_view keyword : params.keywords)
query.where("r.name LIKE ? ESCAPE '" ESCAPE_CHAR_STR "'").bind("%" + Utils::escapeLikeKeyword(keyword) + "%");
if (params.starringUser.isValid())
{
assert(params.feedbackBackend);
query.join("starred_release s_r ON s_r.release_id = r.id")
.where("s_r.user_id = ?").bind(params.starringUser)
.where("s_r.backend = ?").bind(*params.feedbackBackend)
.where("s_r.sync_state <> ?").bind(SyncState::PendingRemove);
}
if (params.artist.isValid())
{
query.join("artist a ON a.id = t_a_l.artist_id")
.join("track_artist_link t_a_l ON t_a_l.track_id = t.id")
.where("a.id = ?").bind(params.artist);
if (!params.trackArtistLinkTypes.empty())
{
std::ostringstream oss;
bool first{ true };
for (TrackArtistLinkType linkType : params.trackArtistLinkTypes)
{
if (!first)
oss << " OR ";
oss << "t_a_l.type = ?";
query.bind(linkType);
first = false;
}
query.where(oss.str());
}
if (!params.excludedTrackArtistLinkTypes.empty())
{
std::ostringstream oss;
oss << "r.id NOT IN (SELECT DISTINCT r.id FROM release r"
" INNER JOIN artist a ON a.id = t_a_l.artist_id"
" INNER JOIN track_artist_link t_a_l ON t_a_l.track_id = t.id"
" INNER JOIN track t ON t.release_id = r.id"
" WHERE (a.id = ? AND (";
query.bind(params.artist);
bool first{ true };
for (const TrackArtistLinkType linkType : params.excludedTrackArtistLinkTypes)
{
if (!first)
oss << " OR ";
oss << "t_a_l.type = ?";
query.bind(linkType);
first = false;
}
oss << ")))";
query.where(oss.str());
}
}
if (params.clusters.size() == 1)
{
query.join("track_cluster t_c ON t_c.track_id = t.id")
.where("t_c.cluster_id = ?").bind(params.clusters.front());
}
else if (params.clusters.size() > 1)
{
std::ostringstream oss;
oss << "r.id NOT IN (SELECT DISTINCT r.id FROM release r"
" INNER JOIN artist a ON a.id = t_a_l.artist_id"
" INNER JOIN track_artist_link t_a_l ON t_a_l.track_id = t.id"
oss << "r.id IN (SELECT DISTINCT r.id FROM release r"
" INNER JOIN track t ON t.release_id = r.id"
" WHERE (a.id = ? AND (";
" INNER JOIN track_cluster t_c ON t_c.track_id = t.id";
query.bind(params.artist);
bool first{ true };
for (const TrackArtistLinkType linkType : params.excludedTrackArtistLinkTypes)
WhereClause clusterClause;
for (const ClusterId clusterId : params.clusters)
{
if (!first)
oss << " OR ";
oss << "t_a_l.type = ?";
query.bind(linkType);
first = false;
clusterClause.Or(WhereClause("t_c.cluster_id = ?"));
query.bind(clusterId);
}
oss << ")))";
oss << " " << clusterClause.get();
oss << " GROUP BY t.id HAVING COUNT(*) = " << params.clusters.size() << ")";
query.where(oss.str());
}
}
if (params.clusters.size() == 1)
{
query.join("track_cluster t_c ON t_c.track_id = t.id")
.where("t_c.cluster_id = ?").bind(params.clusters.front());
}
else if (params.clusters.size() > 1)
{
std::ostringstream oss;
oss << "r.id IN (SELECT DISTINCT r.id FROM release r"
" INNER JOIN track t ON t.release_id = r.id"
" INNER JOIN track_cluster t_c ON t_c.track_id = t.id";
if (params.primaryType)
query.where("primary_type = ?").bind(*params.primaryType);
if (!params.secondaryTypes.empty())
query.where("secondary_type = ?").bind(params.secondaryTypes);
WhereClause clusterClause;
for (const ClusterId clusterId : params.clusters)
switch (params.sortMethod)
{
clusterClause.Or(WhereClause("t_c.cluster_id = ?"));
query.bind(clusterId);
case ReleaseSortMethod::None:
break;
case ReleaseSortMethod::Name:
query.orderBy("r.name COLLATE NOCASE");
break;
case ReleaseSortMethod::Random:
query.orderBy("RANDOM()");
break;
case ReleaseSortMethod::LastWritten:
query.orderBy("t.file_last_write DESC");
break;
case ReleaseSortMethod::Date:
query.orderBy("t.date, r.name COLLATE NOCASE");
break;
case ReleaseSortMethod::OriginalDate:
query.orderBy("CASE WHEN t.original_date IS NULL THEN t.date ELSE t.original_date END, t.date, r.name COLLATE NOCASE");
break;
case ReleaseSortMethod::OriginalDateDesc:
query.orderBy("CASE WHEN t.original_date IS NULL THEN t.date ELSE t.original_date END DESC, t.date, r.name COLLATE NOCASE");
break;
case ReleaseSortMethod::StarredDateDesc:
assert(params.starringUser.isValid());
query.orderBy("s_r.date_time DESC");
break;
}
oss << " " << clusterClause.get();
oss << " GROUP BY t.id HAVING COUNT(*) = " << params.clusters.size() << ")";
query.where(oss.str());
return query;
}
if (params.primaryType)
query.where("primary_type = ?").bind(*params.primaryType);
if (!params.secondaryTypes.empty())
query.where("secondary_type = ?").bind(params.secondaryTypes);
switch (params.sortMethod)
template <typename ResultType>
Wt::Dbo::Query<ResultType> createQuery(Session& session, const Release::FindParameters& params)
{
case ReleaseSortMethod::None:
break;
case ReleaseSortMethod::Name:
query.orderBy("r.name COLLATE NOCASE");
break;
case ReleaseSortMethod::Random:
query.orderBy("RANDOM()");
break;
case ReleaseSortMethod::LastWritten:
query.orderBy("t.file_last_write DESC");
break;
case ReleaseSortMethod::Date:
query.orderBy("t.date, r.name COLLATE NOCASE");
break;
case ReleaseSortMethod::OriginalDate:
query.orderBy("CASE WHEN t.original_date IS NULL THEN t.date ELSE t.original_date END, t.date, r.name COLLATE NOCASE");
break;
case ReleaseSortMethod::OriginalDateDesc:
query.orderBy("CASE WHEN t.original_date IS NULL THEN t.date ELSE t.original_date END DESC, t.date, r.name COLLATE NOCASE");
break;
case ReleaseSortMethod::StarredDateDesc:
assert(params.starringUser.isValid());
query.orderBy("s_r.date_time DESC");
break;
}
std::string_view itemToSelect;
if constexpr (std::is_same_v<ResultType, ReleaseId>)
itemToSelect = "r.id";
else if constexpr (std::is_same_v<ResultType, Wt::Dbo::ptr<Release>>)
itemToSelect = "r";
else
static_assert("Unhandled type");
return query;
return createQuery<ResultType>(session, itemToSelect, params);
}
}
Release::Release(const std::string& name, const std::optional<UUID>& MBID)
@@ -238,7 +256,7 @@ namespace Database
return session.getDboSession().query<int>("SELECT COUNT(*) FROM release");
}
RangeResults<ReleaseId> Release::findOrderedByArtist(Session& session, Range range)
RangeResults<ReleaseId> Release::findIdsOrderedByArtist(Session& session, Range range)
{
session.checkSharedLocked();
@@ -253,7 +271,7 @@ namespace Database
return Utils::execQuery(query, range);
}
RangeResults<ReleaseId> Release::findOrphans(Session& session, Range range)
RangeResults<ReleaseId> Release::findOrphanIds(Session& session, Range range)
{
session.checkSharedLocked();
@@ -261,12 +279,19 @@ namespace Database
return Utils::execQuery(query, range);
}
RangeResults<ReleaseId> Release::find(Session& session, const FindParameters& params)
RangeResults<Release::pointer> Release::find(Session& session, const FindParameters& params)
{
session.checkSharedLocked();
auto query{ createQuery(session, params) };
auto query{ createQuery<Wt::Dbo::ptr<Release>>(session, params) };
return Utils::execQuery(query, params.range);
}
RangeResults<ReleaseId> Release::findIds(Session& session, const FindParameters& params)
{
session.checkSharedLocked();
auto query{ createQuery<ReleaseId>(session, params) };
return Utils::execQuery(query, params.range);
}
@@ -88,9 +88,10 @@ namespace Database
static pointer find(Session& session, const UUID& MBID);
static std::vector<pointer> find(Session& session, const std::string& name);
static pointer find(Session& session, ReleaseId id);
static RangeResults<ReleaseId> find(Session& session, const FindParameters& parameters);
static RangeResults<ReleaseId> findOrphans(Session& session, Range range); // no track related
static RangeResults<ReleaseId> findOrderedByArtist(Session& session, Range range);
static RangeResults<pointer> find(Session& session, const FindParameters& parameters);
static RangeResults<ReleaseId> findIds(Session& session, const FindParameters& parameters);
static RangeResults<ReleaseId> findOrphanIds(Session& session, Range range); // not track related
static RangeResults<ReleaseId> findIdsOrderedByArtist(Session& session, Range range);
// Get the cluster of the tracks that belong to this release
// Each clusters are grouped by cluster type, sorted by the number of occurence (max to min)
+9 -9
View File
@@ -374,7 +374,7 @@ TEST_F(DatabaseFixture, Cluster_singleTrackSingleReleaseSingleCluster)
{
auto transaction{ session.createSharedTransaction() };
auto releases{ Release::find(session, Release::FindParameters {}.setClusters({cluster.getId()})) };
const auto releases{ Release::findIds(session, Release::FindParameters {}.setClusters({cluster.getId()})) };
ASSERT_EQ(releases.results.size(), 1);
EXPECT_EQ(releases.results.front(), release.getId());
}
@@ -382,7 +382,7 @@ TEST_F(DatabaseFixture, Cluster_singleTrackSingleReleaseSingleCluster)
{
auto transaction{ session.createSharedTransaction() };
auto releases{ Release::find(session, Release::FindParameters {}.setClusters({unusedCluster.getId()})) };
const auto releases{ Release::findIds(session, Release::FindParameters {}.setClusters({unusedCluster.getId()})) };
EXPECT_EQ(releases.results.size(), 0);
}
@@ -415,7 +415,7 @@ TEST_F(DatabaseFixture, SingleTrackSingleArtistMultiClusters)
auto transaction{ session.createSharedTransaction() };
EXPECT_TRUE(ClusterType::findOrphans(session, Range{}).results.empty());
EXPECT_EQ(Cluster::findOrphans(session, Range{}).results.size(), 2);
EXPECT_TRUE(Release::findOrphans(session, Range{}).results.empty());
EXPECT_TRUE(Release::findOrphanIds(session, Range{}).results.empty());
EXPECT_TRUE(Artist::findAllOrphans(session, Range{}).results.empty());
}
@@ -475,7 +475,7 @@ TEST_F(DatabaseFixture, SingleTrackSingleArtistMultiRolesMultiClusters)
{
auto transaction{ session.createSharedTransaction() };
EXPECT_TRUE(Cluster::findOrphans(session, Range{}).results.empty());
EXPECT_TRUE(Release::findOrphans(session, Range{}).results.empty());
EXPECT_TRUE(Release::findOrphanIds(session, Range{}).results.empty());
EXPECT_TRUE(Artist::findAllOrphans(session, Range{}).results.empty());
}
@@ -628,7 +628,7 @@ TEST_F(DatabaseFixture, SingleTrackSingleReleaseSingleArtistSingleCluster)
EXPECT_TRUE(Cluster::findOrphans(session, Range{}).results.empty());
EXPECT_TRUE(ClusterType::findOrphans(session, Range{}).results.empty());
EXPECT_TRUE(Artist::findAllOrphans(session, Range{}).results.empty());
EXPECT_TRUE(Release::findOrphans(session, Range{}).results.empty());
EXPECT_TRUE(Release::findOrphanIds(session, Range{}).results.empty());
}
{
@@ -638,11 +638,11 @@ TEST_F(DatabaseFixture, SingleTrackSingleReleaseSingleArtistSingleCluster)
ASSERT_EQ(artists.results.size(), 1);
EXPECT_EQ(artists.results.front(), artist.getId());
auto releases{ Release::find(session, Release::FindParameters {}.setArtist(artist.getId())) };
auto releases{ Release::findIds(session, Release::FindParameters {}.setArtist(artist.getId())) };
ASSERT_EQ(releases.results.size(), 1);
EXPECT_EQ(releases.results.front(), release.getId());
releases = Release::find(session, Release::FindParameters{}.setArtist(artist.getId()).setClusters({ cluster.getId() }));
releases = Release::findIds(session, Release::FindParameters{}.setArtist(artist.getId()).setClusters({ cluster.getId() }));
ASSERT_EQ(releases.results.size(), 1);
EXPECT_EQ(releases.results.front(), release.getId());
}
@@ -669,11 +669,11 @@ TEST_F(DatabaseFixture, SingleTrackSingleReleaseSingleArtistMultiClusters)
{
auto transaction{ session.createSharedTransaction() };
auto releases{ Release::find(session, Release::FindParameters {}.setArtist(artist.getId())) };
auto releases{ Release::findIds(session, Release::FindParameters {}.setArtist(artist.getId())) };
ASSERT_EQ(releases.results.size(), 1);
EXPECT_EQ(releases.results.front(), release.getId());
releases = Release::find(session, Release::FindParameters{}.setArtist(artist.getId()).setClusters({ cluster1.getId(), cluster2.getId() }));
releases = Release::findIds(session, Release::FindParameters{}.setArtist(artist.getId()).setClusters({ cluster1.getId(), cluster2.getId() }));
ASSERT_EQ(releases.results.size(), 1);
EXPECT_EQ(releases.results.front(), release.getId());
}
@@ -42,14 +42,14 @@ TEST_F(DatabaseFixture, MultiTracksSingleArtistSingleRelease)
{
auto transaction {session.createSharedTransaction()};
EXPECT_TRUE(Release::findOrphans(session, Range {}).results.empty());
EXPECT_TRUE(Release::findOrphanIds(session, Range {}).results.empty());
EXPECT_TRUE(Artist::findAllOrphans(session, Range {}).results.empty());
}
{
auto transaction {session.createSharedTransaction()};
auto releases {Release::find(session, Release::FindParameters {}.setArtist(artist.getId()))};
auto releases {Release::findIds(session, Release::FindParameters {}.setArtist(artist.getId()))};
ASSERT_EQ(releases.results.size(), 1);
EXPECT_EQ(releases.results.front(), release.getId());
@@ -74,7 +74,7 @@ TEST_F(DatabaseFixture, SingleTrackSingleReleaseSingleArtist)
{
auto transaction {session.createUniqueTransaction()};
auto releases {Release::find(session, Release::FindParameters {}.setArtist(artist.getId()))};
auto releases {Release::findIds(session, Release::FindParameters {}.setArtist(artist.getId()))};
ASSERT_EQ(releases.results.size(), 1);
EXPECT_EQ(releases.results.front(), release.getId());
File diff suppressed because it is too large Load Diff
@@ -96,7 +96,7 @@ TEST_F(DatabaseFixture, StarredRelease_dateTime)
{
auto transaction{ session.createSharedTransaction() };
auto releases{ Release::find(session, Release::FindParameters {}.setStarringUser(user.getId(), FeedbackBackend::Internal)) };
auto releases{ Release::findIds(session, Release::FindParameters {}.setStarringUser(user.getId(), FeedbackBackend::Internal)) };
EXPECT_EQ(releases.results.size(), 2);
}
@@ -106,7 +106,7 @@ TEST_F(DatabaseFixture, StarredRelease_dateTime)
starredRelease1.get().modify()->setDateTime(dateTime);
starredRelease2.get().modify()->setDateTime(dateTime.addSecs(-1));
auto releases{ Release::find(session, Release::FindParameters {}.setStarringUser(user.getId(), FeedbackBackend::Internal).setSortMethod(ReleaseSortMethod::StarredDateDesc)) };
auto releases{ Release::findIds(session, Release::FindParameters {}.setStarringUser(user.getId(), FeedbackBackend::Internal).setSortMethod(ReleaseSortMethod::StarredDateDesc)) };
ASSERT_EQ(releases.results.size(), 2);
EXPECT_EQ(releases.results[0], starredRelease1->getRelease()->getId());
EXPECT_EQ(releases.results[1], starredRelease2->getRelease()->getId());
@@ -117,7 +117,7 @@ TEST_F(DatabaseFixture, StarredRelease_dateTime)
starredRelease1.get().modify()->setDateTime(dateTime);
starredRelease2.get().modify()->setDateTime(dateTime.addSecs(1));
auto releases{ Release::find(session, Release::FindParameters {}.setStarringUser(user.getId(), FeedbackBackend::Internal).setSortMethod(ReleaseSortMethod::StarredDateDesc)) };
auto releases{ Release::findIds(session, Release::FindParameters {}.setStarringUser(user.getId(), FeedbackBackend::Internal).setSortMethod(ReleaseSortMethod::StarredDateDesc)) };
ASSERT_EQ(releases.results.size(), 2);
EXPECT_EQ(releases.results[0], starredRelease2->getRelease()->getId());
EXPECT_EQ(releases.results[1], starredRelease1->getRelease()->getId());
@@ -141,7 +141,7 @@ namespace Feedback
Session& session{ _db.getTLSSession() };
auto transaction{ session.createSharedTransaction() };
return Release::find(session, params);
return Release::findIds(session, params);
}
void FeedbackService::star(UserId userId, TrackId trackId)
@@ -153,10 +153,11 @@ namespace Scanner
LMS_LOG(DBUPDATER, DEBUG) << "Checking orphan releases...";
// TODO, by batch
Session& session {_db.getTLSSession()};
auto transaction {session.createUniqueTransaction()};
auto releases {Release::findOrphans(session, Range {})};
auto releases {Release::findOrphanIds(session, Range {})};
for (const ReleaseId releaseId : releases.results)
{
Release::pointer release {Release::find(session, releaseId)};
@@ -66,11 +66,11 @@ namespace API::Subsonic
params.setSortMethod(ReleaseSortMethod::Name);
params.setRange(range);
releases = Release::find(context.dbSession, params);
releases = Release::findIds(context.dbSession, params);
}
else if (type == "alphabeticalByArtist")
{
releases = Release::findOrderedByArtist(context.dbSession, range);
releases = Release::findIdsOrderedByArtist(context.dbSession, range);
}
else if (type == "byGenre")
{
@@ -86,7 +86,7 @@ namespace API::Subsonic
params.setSortMethod(ReleaseSortMethod::Name);
params.setRange(range);
releases = Release::find(context.dbSession, params);
releases = Release::findIds(context.dbSession, params);
}
}
}
@@ -100,7 +100,7 @@ namespace API::Subsonic
params.setRange(range);
params.setDateRange(DateRange::fromYearRange(fromYear, toYear));
releases = Release::find(context.dbSession, params);
releases = Release::findIds(context.dbSession, params);
}
else if (type == "frequent")
{
@@ -112,7 +112,7 @@ namespace API::Subsonic
params.setSortMethod(ReleaseSortMethod::LastWritten);
params.setRange(range);
releases = Release::find(context.dbSession, params);
releases = Release::findIds(context.dbSession, params);
}
else if (type == "random")
{
@@ -122,7 +122,7 @@ namespace API::Subsonic
params.setSortMethod(ReleaseSortMethod::Random);
params.setRange({ 0, size });
releases = Release::find(context.dbSession, params);
releases = Release::findIds(context.dbSession, params);
}
else if (type == "recent")
{
@@ -335,11 +335,8 @@ namespace API::Subsonic
directoryNode.setAttribute("name", Utils::makeNameFilesystemCompatible(artist->getName()));
const auto artistReleases{ Release::find(context.dbSession, Release::FindParameters {}.setArtist(*artistId)) };
for (const ReleaseId artistReleaseId : artistReleases.results)
{
const Release::pointer release{ Release::find(context.dbSession, artistReleaseId) };
for (const Release::pointer& release : artistReleases.results)
directoryNode.addArrayChild("child", createAlbumNode(context, release, user, false /* no id3 */));
}
}
else if (releaseId)
{
@@ -408,11 +405,8 @@ namespace API::Subsonic
Response::Node artistNode{ createArtistNode(context, artist, user, true /* id3 */) };
const auto releases{ Release::find(context.dbSession, Release::FindParameters {}.setArtist(artist->getId())) };
for (const ReleaseId releaseId : releases.results)
{
const Release::pointer release{ Release::find(context.dbSession, releaseId) };
for (const Release::pointer& release : releases.results)
artistNode.addArrayChild("album", createAlbumNode(context, release, user, true /* id3 */));
}
response.addNode("artist", std::move(artistNode));
@@ -70,7 +70,6 @@ namespace API::Subsonic
{
Artist::FindParameters params;
params.setKeywords(keywords);
params.setSortMethod(ArtistSortMethod::BySortName);
params.setRange({ artistOffset, artistCount });
RangeResults<ArtistId> artistIds{ Artist::find(context.dbSession, params) };
@@ -85,15 +84,11 @@ namespace API::Subsonic
{
Release::FindParameters params;
params.setKeywords(keywords);
params.setSortMethod(ReleaseSortMethod::Name);
params.setRange({ albumOffset, albumCount });
RangeResults<ReleaseId> releaseIds{ Release::find(context.dbSession, params) };
for (const ReleaseId releaseId : releaseIds.results)
{
const auto release{ Release::find(context.dbSession, releaseId) };
RangeResults<Release::pointer> releases{ Release::find(context.dbSession, params) };
for (const Release::pointer& release : releases.results)
searchResult2Node.addArrayChild("album", createAlbumNode(context, release, user, id3));
}
}
if (songCount > 0)