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[Remote] Added genre filter on artist searches

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This commit is contained in:
emeric
2014-10-10 23:11:49 +02:00
parent 0d3e86ead3
commit eb5f8ea9e3
4 changed files with 116 additions and 47 deletions
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src/database/Artist.cpp
+39
View File
@@ -17,8 +17,12 @@
* along with LMS. If not, see <http://www.gnu.org/licenses/>.
*/
#include <boost/foreach.hpp>
#include "AudioTypes.hpp"
#include "SqlQuery.hpp"
namespace Database
{
@@ -63,5 +67,40 @@ Artist::getAllOrphans(Wt::Dbo::Session& session)
return session.query< Wt::Dbo::ptr<Artist> >("select a from artist a LEFT OUTER JOIN Track t ON a.id = t.artist_id WHERE t.id IS NULL");
}
Wt::Dbo::collection<Artist::pointer>
Artist::getAll(Wt::Dbo::Session& session,
const std::vector<Genre::id_type>& genreIds,
int offset, int size)
{
std::string sqlQuery = "SELECT a FROM artist a";
if (!genreIds.empty())
{
sqlQuery += " INNER JOIN genre g ON g.id = t_g.genre_id";
sqlQuery += " INNER JOIN track t ON t.id = t_g.track_id AND t.artist_id = a.id";
sqlQuery += " INNER JOIN track_genre t_g ON t_g.track_id = t.id AND t_g.genre_id = g.id";
}
WhereClause where;
{
WhereClause genreWhere;
for (std::size_t i = 0; i < genreIds.size(); ++i)
genreWhere.Or( WhereClause("g.id = ?") );
where.And(genreWhere);
}
Wt::Dbo::Query<Artist::pointer> query = session.query<Artist::pointer>( sqlQuery + " " + where.get() ).offset(offset).limit(size);
BOOST_FOREACH(const Genre::id_type genreId, genreIds)
query.bind(genreId);
query.groupBy("a");
return query;
}
} // namespace Database
src/database/AudioTypes.hpp
+41 -37
View File
@@ -36,6 +36,44 @@ class Track;
class Release;
class Artist;
class Genre
{
public:
typedef Wt::Dbo::ptr<Genre> pointer;
typedef Wt::Dbo::dbo_traits<Genre>::IdType id_type;
Genre();
Genre(const std::string& name);
// Find utility
static pointer getByName(Wt::Dbo::Session& session, const std::string& name);
static pointer getNone(Wt::Dbo::Session& session);
static Wt::Dbo::collection<pointer> getAll(Wt::Dbo::Session& session, std::size_t offset = -1, std::size_t size = -1);
// Create utility
static pointer create(Wt::Dbo::Session& session, const std::string& name);
// Accessors
const std::string& getName(void) const { return _name; }
bool isNone(void) const;
const Wt::Dbo::collection< Wt::Dbo::ptr<Track> >& getTracks() const { return _tracks;}
template<class Action>
void persist(Action& a)
{
Wt::Dbo::field(a, _name, "name");
Wt::Dbo::hasMany(a, _tracks, Wt::Dbo::ManyToMany, "track_genre", "", Wt::Dbo::OnDeleteCascade);
}
private:
static const std::size_t _maxNameLength = 128;
std::string _name;
Wt::Dbo::collection< Wt::Dbo::ptr<Track> > _tracks;
};
class Artist
{
public:
@@ -50,6 +88,9 @@ class Artist
static pointer getByName(Wt::Dbo::Session& session, const std::string& name);
static pointer getNone(Wt::Dbo::Session& session);
static Wt::Dbo::collection<pointer> getAll(Wt::Dbo::Session& session, int offset = -1, int size = -1);
static Wt::Dbo::collection<pointer> getAll(Wt::Dbo::Session& session,
const std::vector<Genre::id_type>& genreIds,
int offset = -1, int size = -1);
static Wt::Dbo::collection<pointer> getAllOrphans(Wt::Dbo::Session& session);
const std::string& getName(void) const { return _name; }
@@ -122,43 +163,6 @@ class Release
};
class Genre
{
public:
typedef Wt::Dbo::ptr<Genre> pointer;
typedef Wt::Dbo::dbo_traits<Genre>::IdType id_type;
Genre();
Genre(const std::string& name);
// Find utility
static pointer getByName(Wt::Dbo::Session& session, const std::string& name);
static pointer getNone(Wt::Dbo::Session& session);
static Wt::Dbo::collection<pointer> getAll(Wt::Dbo::Session& session, std::size_t offset = -1, std::size_t size = -1);
// Create utility
static pointer create(Wt::Dbo::Session& session, const std::string& name);
// Accessors
const std::string& getName(void) const { return _name; }
bool isNone(void) const;
const Wt::Dbo::collection< Wt::Dbo::ptr<Track> >& getTracks() const { return _tracks;}
template<class Action>
void persist(Action& a)
{
Wt::Dbo::field(a, _name, "name");
Wt::Dbo::hasMany(a, _tracks, Wt::Dbo::ManyToMany, "track_genre", "", Wt::Dbo::OnDeleteCascade);
}
private:
static const std::size_t _maxNameLength = 128;
std::string _name;
Wt::Dbo::collection< Wt::Dbo::ptr<Track> > _tracks;
};
class Track
{
public:
src/remote/server/AudioCollectionRequestHandler.cpp
+6 -1
View File
@@ -164,11 +164,16 @@ AudioCollectionRequestHandler::processGetArtists(const AudioCollectionRequest::G
size = _maxListArtists;
size = std::min(size, _maxListArtists);
// Get filters
std::vector<Database::Artist::id_type> genreIds;
for (int id = 0; id < request.genre_id_size(); ++id)
genreIds.push_back( request.genre_id(id) );
// Now fetch requested data...
Wt::Dbo::Transaction transaction( _db.getSession() );
Wt::Dbo::collection<Database::Artist::pointer> artists = Database::Artist::getAll( _db.getSession(), request.batch_parameter().offset(), static_cast<int>(size) );
Wt::Dbo::collection<Database::Artist::pointer> artists = Database::Artist::getAll( _db.getSession(), genreIds, request.batch_parameter().offset(), static_cast<int>(size) );
typedef Wt::Dbo::collection< Database::Artist::pointer > Artists;