Implemented Subsonic's user rating for tracks, albums and artists, fixes #511

src/libs/database/impl/RatedRelease.cpp

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2021 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "database/RatedRelease.hpp"
+
+#include <Wt/Dbo/WtSqlTraits.h>
+
+#include "database/Release.hpp"
+#include "database/Session.hpp"
+#include "database/User.hpp"
+
+#include "IdTypeTraits.hpp"
+#include "Utils.hpp"
+
+namespace lms::db
+{
+    RatedRelease::RatedRelease(ObjectPtr<Release> release, ObjectPtr<User> user)
+        : _release{ getDboPtr(release) }
+        , _user{ getDboPtr(user) }
+    {
+    }
+
+    RatedRelease::pointer RatedRelease::create(Session& session, ObjectPtr<Release> release, ObjectPtr<User> user)
+    {
+        return session.getDboSession()->add(std::unique_ptr<RatedRelease>{ new RatedRelease{ release, user } });
+    }
+
+    std::size_t RatedRelease::getCount(Session& session)
+    {
+        session.checkReadTransaction();
+        return utils::fetchQuerySingleResult(session.getDboSession()->query<int>("SELECT COUNT(*) FROM rated_release"));
+    }
+
+    RatedRelease::pointer RatedRelease::find(Session& session, RatedReleaseId id)
+    {
+        session.checkReadTransaction();
+        return utils::fetchQuerySingleResult(session.getDboSession()->find<RatedRelease>().where("id = ?").bind(id));
+    }
+
+    RatedRelease::pointer RatedRelease::find(Session& session, ReleaseId releaseId, UserId userId)
+    {
+        session.checkReadTransaction();
+        return utils::fetchQuerySingleResult(session.getDboSession()->find<RatedRelease>().where("release_id = ?").bind(releaseId).where("user_id = ?").bind(userId));
+    }
+
+    void RatedRelease::find(Session& session, const FindParameters& params, std::function<void(const pointer&)> func)
+    {
+        session.checkReadTransaction();
+
+        auto query{ session.getDboSession()->query<Wt::Dbo::ptr<RatedRelease>>("SELECT r_r FROM rated_release r_r") };
+
+        if (params.user.isValid())
+            query.where("r_r.user_id = ?").bind(params.user);
+
+        utils::forEachQueryRangeResult(query, params.range, func);
+    }
+
+    void RatedRelease::setLastUpdated(const Wt::WDateTime& lastUpdated)
+    {
+        _lastUpdated = utils::normalizeDateTime(lastUpdated);
+    }
+} // namespace lms::db