5 using namespace SomePlayer::Storage;
6 using namespace SomePlayer::DataObjects;
8 DbStorage::DbStorage(QString path) {
9 QString dbname = path+_DATABASE_NAME_;
10 db = QSqlDatabase::addDatabase("QSQLITE");
11 db.setDatabaseName(dbname);
13 // throw big exception
15 // create database structure
16 _create_database_structure();
20 void DbStorage::_prepare_queries() {
21 _get_artists_query = new QSqlQuery(db);
22 _get_artists_query->prepare("SELECT name FROM artist");
24 _get_albums_for_artist_query = new QSqlQuery(db);
25 _get_albums_for_artist_query->prepare("SELECT name FROM album WHERE artist_id in (SELECT id from artist WHERE name = :name);");
27 _get_tracks_for_album_query = new QSqlQuery(db);
28 _get_tracks_for_album_query->prepare("SELECT id, title, source, count FROM tracks WHERE artist_id IN "
29 "(SELECT id FROM artist WHERE name = :artist_name) AND album_id IN "
30 "(SELECT id FROM album WHERE name =: album_name);");
32 _get_favorites_query = new QSqlQuery(db);
33 _get_favorites_query->prepare("SELECT track_id as id, title, artist, album.name as album, source, count FROM "
34 "(SELECT tracks.id AS track_id, artist.name AS artist, title, count, source, tracks.album_id FROM "
35 "tracks JOIN artist ON tracks.artist_id = artist.id) "
36 "JOIN album ON album_id = album.id WHERE track_id IN "
37 "(SELECT track_id FROM favorites);");
39 _get_most_played_query = new QSqlQuery(db);
40 _get_most_played_query->prepare("SELECT track_id as id, title, artist, album.name as album, source, count FROM "
41 "(SELECT tracks.id AS track_id, artist.name AS artist, title, count, source, tracks.album_id FROM "
42 "tracks JOIN artist ON tracks.artist_id = artist.id) "
43 "JOIN album ON album_id = album.id ORDER BY count DESC "
46 _get_never_played_query = new QSqlQuery(db);
47 _get_never_played_query->prepare("SELECT track_id as id, title, artist, album.name as album, source, count FROM "
48 "(SELECT tracks.id AS track_id, artist.name AS artist, title, count, source, tracks.album_id FROM "
49 "tracks JOIN artist ON tracks.artist_id = artist.id) "
50 "JOIN album ON album_id = album.id "
53 _get_recently_added_query = new QSqlQuery(db);
54 _get_recently_added_query->prepare("SELECT track_id as id, title, artist, album.name as album, source, count FROM "
55 "(SELECT tracks.id AS track_id, artist.name AS artist, title, count, source, tracks.album_id FROM "
56 "tracks JOIN artist ON tracks.artist_id = artist.id) "
57 "JOIN album ON album_id = album.id "
59 "(SELECT track_id FROM adding_date ORDER BY date DESC LIMIT 0, :max)");
60 _check_artist_query = new QSqlQuery(db);
61 _check_artist_query->prepare("SELECT id FROM artist WHERE name = :name");
63 _check_album_query = new QSqlQuery(db);
64 _check_album_query->prepare("SELECT id FROM album WHERE name = :name AND artist_id = :artist_id");
66 _check_track_query = new QSqlQuery(db);
67 _check_track_query->prepare("SELECT id FROM tracks WHERE source = :source");
69 _insert_artist_query = new QSqlQuery(db);
70 _insert_artist_query->prepare("INSERT INTO artist (name) values (:name)");
72 _insert_album_query = new QSqlQuery(db);
73 _insert_album_query->prepare("INSERT INTO album (name, artist_id) values (:name, :artist_id)");
75 _insert_track_query = new QSqlQuery(db);
76 _insert_track_query->prepare("INSERT INTO tracks (title, artist_id, album_id, source) values (:title, :artist_id, :album_id, :source)");
78 _insert_date_query = new QSqlQuery(db);
79 _insert_date_query->prepare("INSERT INTO adding_date (track_id, date) values (:track_id, strftime('%s', 'now'))");
82 void DbStorage::_create_database_structure() {
83 QSqlQuery *query = new QSqlQuery(db);
84 query->exec("create table artist (id integer primary key, "
87 query->exec("create table album (id integer primary key, "
90 "foreign key(artist_id) references arist(id) "
92 query->exec("create table tracks (id integer primary key, "
97 "count integer default 0, "
98 "foreign key(artist_id) references artist(id), "
99 "foreign key(album_id) references album(id) "
101 query->exec("create table favorites (track_id integer, "
102 "foreign key(track_id) references tracks(id) "
104 query->exec("create table adding_date (track_id integer, "
106 "foreign key(track_id) references tracks(id) "
110 DbStorage::~DbStorage() {
111 delete _get_albums_for_artist_query;
112 delete _get_artists_query;
113 delete _get_favorites_query;
114 delete _get_most_played_query;
115 delete _get_never_played_query;
116 delete _get_recently_added_query;
117 delete _get_tracks_for_album_query;
121 QList<QString> DbStorage::getArtists() {
122 QList<QString> artists;
123 QSqlQuery *query = _get_artists_query;
125 while (query->next()) {
126 QString name = query->value(0).toString();
127 artists.append(name);
132 QList<QString> DbStorage::getAlbumsForArtist(QString artist) {
133 QList<QString> albums;
134 QSqlQuery *query = _get_albums_for_artist_query;
135 query->bindValue(":name", artist);
137 while (query->next()) {
138 QString name = query->value(0).toString();
144 QList<Track> DbStorage::getTracksForAlbum(QString album, QString artist) {
146 QSqlQuery *query = _get_tracks_for_album_query;
147 query->bindValue(":artist_name", artist);
148 query->bindValue(":album_name", album);
151 while (query->next()) {
152 int id = query->value(0).toInt();
153 QString title = query->value(1).toString();
154 QString source = query->value(2).toString();
155 int count = query->value(3).toInt();
156 TrackMetadata meta (title, artist, album);
157 Track track(id, meta, source);
158 track.setCount(count);
159 tracks.append(track);
165 Playlist DbStorage::getFavorites() {
167 QSqlQuery *query = _get_favorites_query;
169 while(query->next()) {
170 int id = query->value(0).toInt();
171 QString title = query->value(1).toString();
172 QString artist = query->value(2).toString();
173 QString album = query->value(3).toString();
174 QString source = query->value(4).toString();
175 int count = query->value(5).toInt();
176 TrackMetadata meta(title, artist, album);
177 Track track(id, meta, source);
178 track.setCount(count);
179 playlist.addTrack(track);
180 playlist.setName("Favorites");
185 Playlist DbStorage::getMostPlayed() {
187 QSqlQuery *query = _get_most_played_query;
188 query->bindValue(":max", _DYNAMIC_PLAYLIST_MAX_COUNT_);
190 while (query->next()) {
191 int id = query->value(0).toInt();
192 QString title = query->value(1).toString();
193 QString artist = query->value(2).toString();
194 QString album = query->value(3).toString();
195 QString source = query->value(4).toString();
196 int count = query->value(5).toInt();
197 TrackMetadata meta(title, artist, album);
198 Track track(id, meta, source);
199 track.setCount(count);
200 playlist.addTrack(track);
201 playlist.setName("Most popular");
206 Playlist DbStorage::getNeverPlayed() {
208 QSqlQuery *query = _get_never_played_query;
209 query->bindValue(":max", _DYNAMIC_PLAYLIST_MAX_COUNT_);
211 while (query->next()) {
212 int id = query->value(0).toInt();
213 QString title = query->value(1).toString();
214 QString artist = query->value(2).toString();
215 QString album = query->value(3).toString();
216 QString source = query->value(4).toString();
217 int count = query->value(5).toInt();
218 TrackMetadata meta(title, artist, album);
219 Track track(id, meta, source);
220 track.setCount(count);
221 playlist.addTrack(track);
222 playlist.setName("Never played");
227 Playlist DbStorage::getRecentlyAdded() {
229 QSqlQuery *query = _get_recently_added_query;
230 query->bindValue(":max", _DYNAMIC_PLAYLIST_MAX_COUNT_);
232 while (query->next()) {
233 int id = query->value(0).toInt();
234 QString title = query->value(1).toString();
235 QString artist = query->value(2).toString();
236 QString album = query->value(3).toString();
237 QString source = query->value(4).toString();
238 int count = query->value(5).toInt();
239 TrackMetadata meta(title, artist, album);
240 Track track(id, meta, source);
241 track.setCount(count);
242 playlist.addTrack(track);
243 playlist.setName("Recently added");
248 void DbStorage::removeTrack(Track track) {
250 QSqlQuery *query = new QSqlQuery(db);
251 query->prepare("DELETE FROM tracks WHERE id = :id;");
252 query->bindValue(":id", id);
254 query->prepare("DELETE FROM favorites WHERE track_id = :id;");
255 query->bindValue(":id", id);
257 query->prepare("DELETE FROM adding_date WHERE id = :id;");
258 query->bindValue(":id", id);
262 void DbStorage::addTrack(Track track) {
263 QString title = track.metadata().title();
264 QString artist = track.metadata().artist();
265 QString album = track.metadata().album();
266 QString source = track.source();
267 int artist_id = _check_add_artist(artist);
268 int album_id = _check_add_album(album, artist_id);
269 if (artist_id == -1 || album_id == -1) {
273 QSqlQuery* query = _insert_track_query;
274 query->bindValue(":title", title);
275 query->bindValue(":artist_id", artist_id);
276 query->bindValue(":album_id", album_id);
277 query->bindValue(":source", source);
280 query = _check_track_query;
281 query->bindValue(":source", source);
284 int id = query->value(0).toInt();
285 query = _insert_date_query;
286 query->bindValue(":track_id", id);
300 void DbStorage::addToFavorites(Track) {
303 void DbStorage::updateTrack(Track) {
306 int DbStorage::_check_add_artist(QString artist) {
307 QSqlQuery *query = _check_artist_query;
308 query->bindValue(":name", artist);
311 int id = query->value(0).toInt();
314 query = _insert_artist_query;
315 query->bindValue(":name", artist);
317 return _check_add_artist(artist);
325 int DbStorage::_check_add_album(QString album, int artist_id) {
326 QSqlQuery *query = _check_album_query;
327 query->bindValue(":name", album);
328 query->bindValue(":artist_id", artist_id);
331 int id = query->value(0).toInt();
334 query = _insert_album_query;
335 query->bindValue(":name", album);
336 query->bindValue(":artist_id", artist_id);
338 return _check_add_album(album, artist_id);