72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
/*
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* Copyright (C) 2018 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <string>
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#include <unordered_map>
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#include <unordered_set>
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#include <vector>
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#include <Wt/Dbo/Dbo.h>
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#include "Types.hpp"
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namespace Database {
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class Session;
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class Track;
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using FeatureName = std::string;
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using FeatureValues = std::vector<double>;
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using FeatureValuesMap = std::unordered_map<FeatureName, FeatureValues>;
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class TrackFeatures : public Wt::Dbo::Dbo<TrackFeatures>
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{
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public:
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using pointer = Wt::Dbo::ptr<TrackFeatures>;
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TrackFeatures() = default;
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TrackFeatures(Wt::Dbo::ptr<Track> track, const std::string& jsonEncodedFeatures);
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// Create utility
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static pointer create(Session& session, Wt::Dbo::ptr<Track> track, const std::string& jsonEncodedFeatures);
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FeatureValues getFeatureValues(const FeatureName& feature) const;
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FeatureValuesMap getFeatureValuesMap(const std::unordered_set<FeatureName>& featureNames) const;
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template<class Action>
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void persist(Action& a)
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{
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Wt::Dbo::field(a, _data, "data");
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Wt::Dbo::belongsTo(a, _track, "track", Wt::Dbo::OnDeleteCascade);
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}
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private:
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std::string _data;
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Wt::Dbo::ptr<Track> _track;
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};
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} // namespace database
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