Adding tags in the releases view

approot/releases.xml

@@ -33,6 +33,7 @@
 			<h4 class="media-heading">${release-name}</h4>
 			${<if-has-artist>}${artist-name}${</if-has-artist>}
 		</div>
+		${clusters}
 		${play-btn}${add-btn}
 	</div>
 </message>

src/database/Release.cpp

@@ -240,7 +240,7 @@ Release::getClusterGroups(std::vector<ClusterType::pointer> clusterTypes, std::s
 
 	std::ostringstream oss;
 
-	oss << "SELECT c from cluster c INNER JOIN track t ON c.id = t_c.cluster_id INNER JOIN track_cluster t_c ON t_c.track_id = t.id INNER JOIN cluster_type c_type ON c.cluster_type_id = c_type.id INNER JOIN release r ON t.release_id = r.id";
+	oss << "SELECT c from cluster c INNER JOIN track t ON c.id = t_c.cluster_id INNER JOIN track_cluster t_c ON t_c.track_id = t.id INNER JOIN cluster_type c_type ON c.cluster_type_id = c_type.id INNER JOIN release r ON t.release_id = r.id ";
 
 	where.And(WhereClause("r.id = ?")).bind(std::to_string(self()->id()));
 	{
@@ -250,7 +250,7 @@ Release::getClusterGroups(std::vector<ClusterType::pointer> clusterTypes, std::s
 		where.And(clusterClause);
 	}
 	oss << " " << where.get();
-	oss << "GROUP BY c.id ORDER BY COUNT(c.id) DESC";
+	oss << " GROUP BY c.id ORDER BY COUNT(c.id) DESC";
 
 	Wt::Dbo::Query<Cluster::pointer> query = session()->query<Cluster::pointer>( oss.str() );
 

src/ui/explore/ReleasesView.cpp

@@ -26,6 +26,7 @@
 #include <Wt/WTemplate.h>
 
 #include "database/Release.hpp"
+#include "database/Setting.hpp"
 
 #include "utils/Logger.hpp"
 #include "utils/Utils.hpp"
@@ -35,14 +36,43 @@
 #include "LmsApplication.hpp"
 #include "Filters.hpp"
 
-namespace UserInterface {
-
 using namespace Database;
 
+namespace {
+
+const std::string releasesClusterTypesSetting = "releases_cluster_types";
+const std::vector<std::string> defaultReleasesClusterTypes =
+{
+	"GENRE",
+	"ALBUMGROUPING",
+};
+
+std::vector<ClusterType::pointer> getReleasesClusterTypes(Wt::Dbo::Session& session)
+{
+	Wt::Dbo::Transaction transaction(session);
+
+	std::vector<ClusterType::pointer> res;
+	for (auto clusterTypeName : splitString(Setting::getString(session, releasesClusterTypesSetting), " "))
+	{
+		auto clusterType = ClusterType::getByName(session, clusterTypeName);
+		if (clusterType)
+			res.push_back(clusterType);
+	}
+
+	return res;
+}
+
+} // namespace
+
+namespace UserInterface {
+
 Releases::Releases(Filters* filters)
 : Wt::WTemplate(Wt::WString::tr("Lms.Explore.Releases.template")),
 _filters(filters)
 {
+	if (!Setting::exists(LmsApp->getDboSession(), releasesClusterTypesSetting))
+		Setting::setString(LmsApp->getDboSession(), releasesClusterTypesSetting, joinStrings(defaultReleasesClusterTypes, " "));
+
 	addFunction("tr", &Wt::WTemplate::Functions::tr);
 
 	_search = bindNew<Wt::WLineEdit>("search");
@@ -108,6 +138,25 @@ Releases::addSome()
 			entry->bindWidget("artist-name", LmsApplication::createArtistAnchor(artists.front()));
 		}
 
+		Wt::WContainerWidget* clusterContainers = entry->bindNew<Wt::WContainerWidget>("clusters");
+		{
+			auto clusterTypes = getReleasesClusterTypes(LmsApp->getDboSession());
+			auto clusterGroups = release->getClusterGroups(clusterTypes, 1);
+
+			for (auto clusters : clusterGroups)
+			{
+				for (auto cluster : clusters)
+				{
+					auto clusterId = cluster.id();
+					auto entry = clusterContainers->addWidget(LmsApp->createCluster(cluster));
+					entry->clicked().connect([=]
+					{
+						_filters->add(clusterId);
+					});
+				}
+			}
+		}
+
 		Wt::WText* playBtn = entry->bindNew<Wt::WText>("play-btn", Wt::WString::tr("Lms.Explore.Releases.play"), Wt::TextFormat::XHTML);
 		playBtn->clicked().connect(std::bind([=]
 		{