Added recently added releases feature

src/database/Artist.cpp

@@ -18,6 +18,8 @@
  */
 #include "Artist.hpp"
 
+#include <Wt/Dbo/WtSqlTraits.h>
+
 #include "utils/Logger.hpp"
 
 #include "Cluster.hpp"
@@ -140,6 +142,18 @@ Artist::getByFilter(Wt::Dbo::Session& session,
 	return res;
 }
 
+std::vector<Artist::pointer>
+Artist::getLastAdded(Wt::Dbo::Session& session, Wt::WDateTime after, int limit)
+{
+	Wt::Dbo::collection<Artist::pointer> res = session.query<Artist::pointer>("SELECT a from artist a INNER JOIN track t ON a.id = t.artist_id")
+		.where("t.file_added > ?").bind(after)
+		.groupBy("a.id")
+		.orderBy("t.file_added DESC")
+		.limit(limit);
+
+	return std::vector<pointer>(res.begin(), res.end());
+}
+
 std::vector<Wt::Dbo::ptr<Release>>
 Artist::getReleases(const std::set<IdType>& clusterIds) const
 {

src/database/Artist.hpp

@@ -22,6 +22,7 @@
 #include <string>
 #include <vector>
 
+#include <Wt/WDateTime.h>
 #include <Wt/Dbo/Dbo.h>
 
 #include "Types.hpp"
@@ -56,6 +57,7 @@ class Artist : public Wt::Dbo::Dbo<Artist>
 
 		static std::vector<pointer>	getAll(Wt::Dbo::Session& session, int offset = -1, int size = -1);
 		static std::vector<pointer>	getAllOrphans(Wt::Dbo::Session& session); // No track related
+		static std::vector<pointer>	getLastAdded(Wt::Dbo::Session& session, Wt::WDateTime after, int size = 1);
 
 		// Accessors
 		std::string getName(void) const { return _name; }

src/database/Release.cpp

@@ -74,6 +74,18 @@ Release::getAllOrphans(Wt::Dbo::Session& session)
 	return std::vector<pointer>(res.begin(), res.end());
 }
 
+std::vector<Release::pointer>
+Release::getLastAdded(Wt::Dbo::Session& session, Wt::WDateTime after, int limit)
+{
+	Wt::Dbo::collection<Release::pointer> res = session.query<Release::pointer>("SELECT r from release r INNER JOIN track t ON r.id = t.release_id")
+		.where("t.file_added > ?").bind(after)
+		.groupBy("r.id")
+		.orderBy("t.file_added DESC")
+		.limit(limit);
+
+	return std::vector<pointer>(res.begin(), res.end());
+}
+
 static
 Wt::Dbo::Query<Release::pointer>
 getQuery(Wt::Dbo::Session& session,

src/database/Release.hpp

@@ -21,7 +21,7 @@
 
 #include <boost/optional.hpp>
 
-#include <Wt/Dbo/Dbo.h>
+#include <Wt/Dbo/WtSqlTraits.h>
 
 #include "Types.hpp"
 
@@ -49,6 +49,7 @@ class Release : public Wt::Dbo::Dbo<Release>
 		static pointer			getById(Wt::Dbo::Session& session, IdType id);
 		static std::vector<pointer>	getAllOrphans(Wt::Dbo::Session& session); // no track related
 		static std::vector<pointer>	getAll(Wt::Dbo::Session& session, int offset, int size);
+		static std::vector<pointer>	getLastAdded(Wt::Dbo::Session& session, Wt::WDateTime after, int size = 1);
 
 		static std::vector<pointer>	getByFilter(Wt::Dbo::Session& session,
 							const std::set<IdType>& clusters,           // at least one track that belongs to these clusters