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Improved response time of database queries

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This commit is contained in:
emeric
2019-07-03 13:32:02 +02:00
parent 78579f2456
commit ea3e453aa1
11 changed files with 74 additions and 45 deletions
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src/database/Cluster.cpp
+13 -2
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@@ -74,7 +74,7 @@ Cluster::addTrack(Wt::Dbo::ptr<Track> track)
std::vector<Wt::Dbo::ptr<Track>>
Cluster::getTracks(int offset, int limit) const
{
Wt::Dbo::collection<Track::pointer> res = session()->query<Track::pointer>("select t from track t INNER JOIN cluster c ON c.id = t_c.cluster_id INNER JOIN track_cluster t_c ON t_c.track_id = t.id")
Wt::Dbo::collection<Track::pointer> res = session()->query<Track::pointer>("SELECT t FROM track t INNER JOIN cluster c ON c.id = t_c.cluster_id INNER JOIN track_cluster t_c ON t_c.track_id = t.id")
.where("c.id = ?").bind(self()->id())
.offset(offset)
.limit(limit);
@@ -88,13 +88,24 @@ Cluster::getTrackIds() const
assert(session());
assert(IdIsValid(self()->id()));
Wt::Dbo::collection<IdType> res = session()->query<IdType>("SELECT t_c.track_id from track_cluster t_c INNER JOIN cluster c ON c.id = t_c.cluster_id")
Wt::Dbo::collection<IdType> res = session()->query<IdType>("SELECT t_c.track_id FROM track_cluster t_c INNER JOIN cluster c ON c.id = t_c.cluster_id")
.where("c.id = ?").bind(self()->id());
return std::set<IdType>(res.begin(), res.end());
}
std::size_t
Cluster::getReleasesCount() const
{
assert(session());
assert(IdIsValid(self()->id()));
return session()->query<int>("SELECT COUNT(DISTINCT r.id) FROM release r INNER JOIN track t on t.release_id = r.id INNER JOIN cluster c ON c.id = t_c.cluster_id INNER JOIN track_cluster t_c ON t_c.track_id = t.id")
.where("c.id = ?").bind(self()->id());
}
ClusterType::ClusterType(std::string name)
: _name(name)