void AutoDJCratesDAO::slotCrateTrackRemoved(int crateId, int trackId) {
// Skip this if it's not an auto-DJ crate.
if (!m_rCrateDAO.isCrateInAutoDj(crateId))
return;
// Remove a crate-reference from this track.
ScopedTransaction oTransaction(m_rDatabase);
QSqlQuery oQuery(m_rDatabase);
// UPDATE temp_autodj_crates SET craterefs = craterefs - 1 WHERE track_id = :track_id;
oQuery.prepare("UPDATE " AUTODJCRATES_TABLE " SET "
AUTODJCRATESTABLE_CRATEREFS " = " AUTODJCRATESTABLE_CRATEREFS
" - 1 WHERE " AUTODJCRATESTABLE_TRACKID " = :track_id");
oQuery.bindValue(":track_id", trackId);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
// Remove the track if it no longer has a crate reference.
//DELETE FROM temp_autodj_crates WHERE track_id = :track_id AND craterefs = 0;
oQuery.prepare("DELETE FROM "AUTODJCRATES_TABLE " WHERE "
AUTODJCRATESTABLE_TRACKID " = :track_id AND "
AUTODJCRATESTABLE_CRATEREFS " = 0");
oQuery.bindValue(":track_id", trackId);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
// The transaction was successful.
oTransaction.commit();
}
// Update the last-played date/time for each track in the auto-DJ-crates
// database.
bool AutoDJCratesDAO::updateLastPlayedDateTime() {
QSqlQuery oQuery(m_rDatabase);
// Rebuild the auto-DJ-playlist last-played date/time.
// INSERT OR REPLACE INTO temp_autodj_crates (track_id, craterefs, timesplayed, autodjrefs, lastplayed) SELECT * FROM (SELECT PlaylistTracks.track_id, craterefs, timesplayed, autodjrefs, MAX(pl_datetime_added) AS newlastplayed FROM PlaylistTracks, temp_autodj_crates WHERE PlaylistTracks.playlist_id IN (SELECT id FROM Playlists WHERE hidden = 2) AND PlaylistTracks.track_id = temp_autodj_crates.track_id GROUP BY PlaylistTracks.track_id) WHERE newlastplayed != "";
QString strSetLog;
strSetLog.setNum(PlaylistDAO::PLHT_SET_LOG);
QString strQuery(QString ("INSERT OR REPLACE INTO " AUTODJCRATES_TABLE
" (" AUTODJCRATESTABLE_TRACKID ", " AUTODJCRATESTABLE_CRATEREFS ", "
AUTODJCRATESTABLE_TIMESPLAYED ", " AUTODJCRATESTABLE_AUTODJREFS ", "
AUTODJCRATESTABLE_LASTPLAYED ")"
" SELECT * FROM (SELECT " PLAYLIST_TRACKS_TABLE ".%1, "
AUTODJCRATESTABLE_CRATEREFS ", " AUTODJCRATESTABLE_TIMESPLAYED ", "
AUTODJCRATESTABLE_AUTODJREFS ", MAX(%3) AS new"
AUTODJCRATESTABLE_LASTPLAYED " FROM " PLAYLIST_TRACKS_TABLE ", "
AUTODJCRATES_TABLE " WHERE " PLAYLIST_TRACKS_TABLE
".%2 IN (SELECT %4 FROM " PLAYLIST_TABLE " WHERE %5 = %6) AND "
PLAYLIST_TRACKS_TABLE ".%1 = " AUTODJCRATES_TABLE "."
AUTODJCRATESTABLE_TRACKID " GROUP BY " PLAYLIST_TRACKS_TABLE
".%1) WHERE new" AUTODJCRATESTABLE_LASTPLAYED " != \"\"")
.arg(PLAYLISTTRACKSTABLE_TRACKID, // %1
PLAYLISTTRACKSTABLE_PLAYLISTID, // %2
PLAYLISTTRACKSTABLE_DATETIMEADDED, // %3
PLAYLISTTABLE_ID, // %4
PLAYLISTTABLE_HIDDEN, // %5
strSetLog)); // %6
oQuery.prepare(strQuery);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return false;
}
return true;
}
// Signaled by the track DAO when a track's information is updated.
void AutoDJCratesDAO::slotTrackDirty(int trackId) {
// Update our record of the number of times played, if that changed.
TrackPointer pTrack = m_rTrackDAO.getTrack(trackId);
if (pTrack == NULL) {
return;
}
int iPlayed = pTrack->getTimesPlayed();
if (iPlayed == 0) {
return;
}
// Update our record of how many times this track has been played.
// UPDATE temp_autodj_crates SET timesplayed = :newplayed WHERE track_id = :track_id AND timesplayed = :oldplayed;
QSqlQuery oQuery(m_rDatabase);
oQuery.prepare("UPDATE " AUTODJCRATES_TABLE " SET "
AUTODJCRATESTABLE_TIMESPLAYED " = :newplayed WHERE "
AUTODJCRATESTABLE_TRACKID " = :track_id AND "
AUTODJCRATESTABLE_TIMESPLAYED " = :oldplayed");
oQuery.bindValue(":track_id", trackId);
oQuery.bindValue(":oldplayed", iPlayed - 1);
oQuery.bindValue(":newplayed", iPlayed);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
}
// Signaled by the PlayerInfo singleton when a track is loaded to a deck.
void AutoDJCratesDAO::slotPlayerInfoTrackLoaded(QString a_strGroup,
TrackPointer a_pTrack) {
// This gets called with a null track during an unload. Filter that out.
if (a_pTrack == NULL) {
return;
}
// This counts as an auto-DJ reference. The idea is to prevent tracks that
// are loaded into a deck from being randomly chosen.
int iTrackId = a_pTrack->getId();
unsigned int numDecks = PlayerManager::numDecks();
for (unsigned int i = 0; i < numDecks; ++i) {
if (a_strGroup == PlayerManager::groupForDeck(i)) {
// Update the number of auto-DJ-playlist references to this track.
QSqlQuery oQuery(m_rDatabase);
// UPDATE temp_autodj_crates SET autodjrefs = autodjrefs + 1 WHERE track_id = :track_id;
oQuery.prepare("UPDATE " AUTODJCRATES_TABLE " SET "
AUTODJCRATESTABLE_AUTODJREFS " = " AUTODJCRATESTABLE_AUTODJREFS
" + 1 WHERE " AUTODJCRATESTABLE_TRACKID " = :track_id");
oQuery.bindValue(":track_id", iTrackId);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
return;
}
}
}
// Update the number of auto-DJ-playlist references to the given track in the
// auto-DJ-crates database.
bool AutoDJCratesDAO::updateAutoDjPlaylistReferencesForTrack(int trackId) {
QSqlQuery oQuery(m_rDatabase);
// INSERT OR REPLACE INTO temp_autodj_crates (track_id, craterefs, timesplayed, autodjrefs) SELECT * FROM (SELECT :track_id AS new_track_id, craterefs, timesplayed, COUNT (*) AS newautodjrefs FROM PlaylistTracks, temp_autodj_crates WHERE PlaylistTracks.playlist_id IN (SELECT id FROM Playlists WHERE hidden = 1) AND PlaylistTracks.track_id = :track_id AND temp_autodj_crates.track_id = :track_id GROUP BY new_track_id) WHERE newautodjrefs > 0;
QString strHidden;
strHidden.setNum(PlaylistDAO::PLHT_AUTO_DJ);
oQuery.prepare(QString("INSERT OR REPLACE INTO " AUTODJCRATES_TABLE " ("
AUTODJCRATESTABLE_TRACKID ", " AUTODJCRATESTABLE_CRATEREFS ", "
AUTODJCRATESTABLE_TIMESPLAYED ", " AUTODJCRATESTABLE_AUTODJREFS
") SELECT * FROM (SELECT :track_id_1 AS new_track_id, "
AUTODJCRATESTABLE_CRATEREFS ", " AUTODJCRATESTABLE_TIMESPLAYED
", COUNT (*) AS new" AUTODJCRATESTABLE_AUTODJREFS " FROM "
PLAYLIST_TRACKS_TABLE ", " AUTODJCRATES_TABLE " WHERE "
PLAYLIST_TRACKS_TABLE ".%1 IN (SELECT %4 FROM " PLAYLIST_TABLE
" WHERE %2 = %5) AND " PLAYLIST_TRACKS_TABLE ".%3 = :track_id_2 AND "
AUTODJCRATES_TABLE "." AUTODJCRATESTABLE_TRACKID
" = :track_id_3 GROUP BY new_track_id) WHERE new"
AUTODJCRATESTABLE_AUTODJREFS " > 0")
.arg(PLAYLISTTRACKSTABLE_PLAYLISTID, // %1
PLAYLISTTABLE_HIDDEN, // %2
PLAYLISTTRACKSTABLE_TRACKID, // %3
PLAYLISTTABLE_ID, // %4
strHidden)); // %5
oQuery.bindValue(":track_id_1", trackId);
oQuery.bindValue(":track_id_2", trackId);
oQuery.bindValue(":track_id_3", trackId);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return false;
}
// The update was successful.
return true;
}
// Update the number of auto-DJ-playlist references to each track in the
// auto-DJ-crates database.
bool AutoDJCratesDAO::updateAutoDjPlaylistReferences() {
QSqlQuery oQuery(m_rDatabase);
// Rebuild the auto-DJ-playlist reference count.
// INSERT OR REPLACE INTO temp_autodj_crates (track_id, craterefs, timesplayed, autodjrefs) SELECT * FROM (SELECT PlaylistTracks.track_id, craterefs, timesplayed, COUNT (*) AS newautodjrefs FROM PlaylistTracks, temp_autodj_crates WHERE PlaylistTracks.playlist_id IN (SELECT id FROM Playlists WHERE hidden = 1) AND PlaylistTracks.track_id = temp_autodj_crates.track_id GROUP BY PlaylistTracks.track_id) WHERE newautodjrefs > 0;
QString strHidden;
strHidden.setNum(PlaylistDAO::PLHT_AUTO_DJ);
QString strQuery(QString ("INSERT OR REPLACE INTO " AUTODJCRATES_TABLE
" (" AUTODJCRATESTABLE_TRACKID ", " AUTODJCRATESTABLE_CRATEREFS ", "
AUTODJCRATESTABLE_TIMESPLAYED ", " AUTODJCRATESTABLE_AUTODJREFS ")"
" SELECT * FROM (SELECT " PLAYLIST_TRACKS_TABLE ".%1, "
AUTODJCRATESTABLE_CRATEREFS ", " AUTODJCRATESTABLE_TIMESPLAYED
", COUNT (*) AS new" AUTODJCRATESTABLE_AUTODJREFS " FROM "
PLAYLIST_TRACKS_TABLE ", " AUTODJCRATES_TABLE " WHERE "
PLAYLIST_TRACKS_TABLE ".%2 IN (SELECT %3 FROM " PLAYLIST_TABLE
" WHERE %4 = %5) AND " PLAYLIST_TRACKS_TABLE ".%1 = "
AUTODJCRATES_TABLE "." AUTODJCRATESTABLE_TRACKID " GROUP BY "
PLAYLIST_TRACKS_TABLE ".%1) WHERE new" AUTODJCRATESTABLE_AUTODJREFS
" > 0")
.arg(PLAYLISTTRACKSTABLE_TRACKID, // %1
PLAYLISTTRACKSTABLE_PLAYLISTID, // %2
PLAYLISTTABLE_ID, // %3
PLAYLISTTABLE_HIDDEN, // %4
strHidden)); // %5
oQuery.prepare(strQuery);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return false;
}
// Incorporate all tracks loaded into decks.
// Each track has to be done as a separate database query, in case the same
// track is loaded into multiple decks.
int iDecks = (int) PlayerManager::numDecks();
for (int i = 0; i < iDecks; ++i) {
QString group = PlayerManager::groupForDeck(i);
TrackPointer pTrack = PlayerInfo::Instance().getTrackInfo(group);
if (pTrack) {
int iTrackId = pTrack->getId();
// UPDATE temp_autodj_crates SET autodjrefs = autodjrefs + 1 WHERE track_id IN (:track_id);
oQuery.prepare("UPDATE " AUTODJCRATES_TABLE " SET "
AUTODJCRATESTABLE_AUTODJREFS " = " AUTODJCRATESTABLE_AUTODJREFS
" + 1 WHERE " AUTODJCRATESTABLE_TRACKID " IN (:track_id)");
oQuery.bindValue(":track_id", iTrackId);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return false;
}
}
}
return true;
}
// Signaled by the playlist DAO when a track is added to a playlist.
void AutoDJCratesDAO::slotPlaylistTrackAdded(int playlistId, int trackId,
int /* a_iPosition */) {
// Deal with changes to the auto-DJ playlist.
if (playlistId == m_iAutoDjPlaylistId) {
QSqlQuery oQuery(m_rDatabase);
// UPDATE temp_autodj_crates SET autodjrefs = autodjrefs + 1 WHERE track_id = :track_id;
oQuery.prepare("UPDATE " AUTODJCRATES_TABLE " SET "
AUTODJCRATESTABLE_AUTODJREFS " = " AUTODJCRATESTABLE_AUTODJREFS
" + 1 WHERE " AUTODJCRATESTABLE_TRACKID " = :track_id");
oQuery.bindValue(":track_id", trackId);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
} else if (m_lstSetLogPlaylistIds.contains(playlistId)) {
// Deal with changes to set-log playlists.
// If this query doesn't succeed, it'll log a message.
// Do nothing special otherwise -- any change it makes can be part of
// any current transaction.
updateLastPlayedDateTimeForTrack(trackId);
}
}
// Create the active-tracks view.
bool AutoDJCratesDAO::createActiveTracksView (bool a_bUseIgnoreTime) {
// Create the active-tracks view. This is a list of all tracks loaded into
// the auto-DJ-crates database, excluding all tracks already in the auto-DJ
// playlist, sorted by the number of times the track has been played, and
// limited by either the active percentage or by the number of tracks that
// have never been played, whichever is larger.
//
// At one point, I hoped that I could create this table in a single SQL
// statement, with a "limit" clause that dynamically updated the size of the
// view as the state of the system changed. Unfortunately, that limit
// clause is only evaluated once. For posterity, though, here's the monster
// SQL query that attempted to create that version:
//
// CREATE TEMP VIEW temp_autodj_activetracks
// AS SELECT * FROM temp_autodj_crates WHERE autodjrefs = 0
// ORDER BY timesplayed, lastplayed LIMIT (SELECT MAX(count) FROM
// (SELECT COUNT(*) AS count FROM temp_autodj_crates WHERE timesplayed = 0
// UNION ALL SELECT (count * (SELECT value FROM settings WHERE
// name="mixxx.db.model.autodjcrates.active_percentage") / 100) AS count
// FROM (SELECT COUNT(*) AS count FROM temp_autodj_crates)));
// CREATE TEMP VIEW temp_autodj_activetracks AS SELECT * FROM temp_autodj_crates WHERE autodjrefs = 0 ORDER BY timesplayed, lastplayed;
QSqlQuery oQuery(m_rDatabase);
QString strTimesPlayed;
if (!a_bUseIgnoreTime) {
strTimesPlayed = AUTODJCRATESTABLE_TIMESPLAYED ", ";
}
oQuery.prepare(QString("CREATE TEMP VIEW " AUTODJACTIVETRACKS_TABLE
" AS SELECT * FROM " AUTODJCRATES_TABLE " WHERE "
AUTODJCRATESTABLE_AUTODJREFS " = 0 ORDER BY %1"
AUTODJCRATESTABLE_LASTPLAYED)
.arg(strTimesPlayed)); // %1
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return false;
}
return true;
}
// Signaled by the PlayerInfo singleton when a track is unloaded from a deck.
void AutoDJCratesDAO::slotPlayerInfoTrackUnloaded(QString group,
TrackPointer pTrack) {
// This counts as an auto-DJ reference. The idea is to prevent tracks that
// are loaded into a deck from being randomly chosen.
int iTrackId = pTrack->getId();
unsigned int numDecks = PlayerManager::numDecks();
for (unsigned int i = 0; i < numDecks; ++i) {
if (group == PlayerManager::groupForDeck(i)) {
// Get rid of the ID of the track in this deck.
QSqlQuery oQuery(m_rDatabase);
// UPDATE temp_autodj_crates SET autodjrefs = autodjrefs - 1 WHERE track_id = :track_id;
oQuery.prepare("UPDATE " AUTODJCRATES_TABLE " SET "
AUTODJCRATESTABLE_AUTODJREFS " = " AUTODJCRATESTABLE_AUTODJREFS
" - 1 WHERE " AUTODJCRATESTABLE_TRACKID " = :track_id");
oQuery.bindValue(":track_id", iTrackId);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
return;
}
}
}
void AutoDJCratesDAO::slotCrateTrackAdded(int a_iCrateId, int a_iTrackId) {
// Skip this if it's not an auto-DJ crate.
if (!m_rCrateDAO.isCrateInAutoDj(a_iCrateId)) {
return;
}
// Add a crate-reference to this track, if it's already in the
// auto-DJ-crates table (in which case, we're done).
ScopedTransaction oTransaction(m_rDatabase);
QSqlQuery oQuery(m_rDatabase);
// UPDATE temp_autodj_crates SET craterefs = craterefs + 1 WHERE track_id = :track_id;
QString strHidden;
strHidden.setNum(PlaylistDAO::PLHT_AUTO_DJ);
oQuery.prepare("UPDATE " AUTODJCRATES_TABLE " SET "
AUTODJCRATESTABLE_CRATEREFS " = " AUTODJCRATESTABLE_CRATEREFS
" + 1 WHERE " AUTODJCRATESTABLE_TRACKID " = :track_id");
oQuery.bindValue(":track_id", a_iTrackId);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
if (oQuery.numRowsAffected() == 1) {
oTransaction.commit();
return;
}
// Create an entry for the track.
// The number of crate references is known to be 1 for such tracks.
// The number of references to each track in the auto-DJ playlist isn't
// set yet; it defaults to zero.
// If no records were modified by this query (i.e. because the track's
// mixxx_deleted flag is set), then there's no reason to update the number
// of auto-DJ-playlist references to each track.
// INSERT INTO temp_autodj_crates (track_id, craterefs, timesplayed, autodjrefs) SELECT :track_id, 1, library.timesplayed, 0 FROM library WHERE :track_id = library.id AND library.mixxx_deleted = 0;
oQuery.prepare(QString("INSERT INTO " AUTODJCRATES_TABLE " ("
AUTODJCRATESTABLE_TRACKID ", " AUTODJCRATESTABLE_CRATEREFS ", "
AUTODJCRATESTABLE_TIMESPLAYED ", " AUTODJCRATESTABLE_AUTODJREFS
") SELECT :track_id_1, 1, " LIBRARY_TABLE ".%1, 0 FROM " LIBRARY_TABLE
" WHERE :track_id_2 = " LIBRARY_TABLE ".%2 AND " LIBRARY_TABLE
".%3 = 0")
.arg(LIBRARYTABLE_TIMESPLAYED, // %1
LIBRARYTABLE_ID, // %2
LIBRARYTABLE_MIXXXDELETED)); // %3
oQuery.bindValue(":track_id_1", a_iTrackId);
oQuery.bindValue(":track_id_2", a_iTrackId);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
if (oQuery.numRowsAffected() == 0) {
oTransaction.commit();
return;
}
// Update the number of auto-DJ-playlist references to this track.
if (!updateAutoDjPlaylistReferencesForTrack(a_iTrackId)) {
return;
}
// Update the last-played date/time for this track.
if (!updateLastPlayedDateTimeForTrack(a_iTrackId)) {
return;
}
// The transaction was successful.
oTransaction.commit();
}
void AutoDJCratesDAO::slotCrateAutoDjChanged(int crateId, bool added) {
// Handle a crate that's entered the auto-DJ queue differently than one that
// is leaving it. (Obviously.)
ScopedTransaction oTransaction(m_rDatabase);
if (added) {
// Add a crate-reference to every track in this crate, if that track is
// already in the auto-DJ-crates table.
QSqlQuery oQuery(m_rDatabase);
// UPDATE temp_autodj_crates SET craterefs = craterefs + 1 WHERE track_id IN (SELECT temp_autodj_crates.track_id FROM crate_tracks, temp_autodj_crates WHERE crate_tracks.crate_id = :crate_id AND crate_tracks.track_id = temp_autodj_crates.track_id);
oQuery.prepare(QString ("UPDATE " AUTODJCRATES_TABLE " SET "
AUTODJCRATESTABLE_CRATEREFS " = " AUTODJCRATESTABLE_CRATEREFS
" + 1 WHERE " AUTODJCRATESTABLE_TRACKID " IN (SELECT "
AUTODJCRATES_TABLE "." AUTODJCRATESTABLE_TRACKID " FROM "
CRATE_TRACKS_TABLE ", " AUTODJCRATES_TABLE " WHERE "
CRATE_TRACKS_TABLE ".%2 = :crate_id AND " CRATE_TRACKS_TABLE
".%1 = " AUTODJCRATES_TABLE "." AUTODJCRATESTABLE_TRACKID ")")
.arg(CRATETRACKSTABLE_TRACKID, // %1
CRATETRACKSTABLE_CRATEID)); // %2
oQuery.bindValue(":crate_id", crateId);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
// Create an entry for all tracks that weren't in the auto-DJ-crates
// table already.
// The number of crate references is known to be 1 for such tracks.
// The number of references to each track in the auto-DJ playlist isn't
// set yet; it defaults to zero.
// If no records were modified by this query, then there's no reason to
// update the number of auto-DJ-playlist references to each track.
// INSERT INTO temp_autodj_crates (track_id, craterefs, timesplayed, autodjrefs) SELECT crate_tracks.track_id, 1, library.timesplayed, 0 FROM crate_tracks, library WHERE crate_tracks.crate_id = :crate_id AND crate_tracks.track_id NOT IN (SELECT track_id FROM temp_autodj_crates) AND crate_tracks.track_id = library.id AND library.mixxx_deleted = 0;
oQuery.prepare(QString("INSERT INTO " AUTODJCRATES_TABLE " ("
AUTODJCRATESTABLE_TRACKID ", " AUTODJCRATESTABLE_CRATEREFS ", "
AUTODJCRATESTABLE_TIMESPLAYED ", " AUTODJCRATESTABLE_AUTODJREFS
") SELECT " CRATE_TRACKS_TABLE ".%1, 1, " LIBRARY_TABLE
".timesplayed, 0 FROM " CRATE_TRACKS_TABLE ", " LIBRARY_TABLE
" WHERE " CRATE_TRACKS_TABLE ".%2 = :crate_id AND "
CRATE_TRACKS_TABLE ".%1 NOT IN (SELECT " AUTODJCRATESTABLE_TRACKID
" FROM " AUTODJCRATES_TABLE" ) AND " CRATE_TRACKS_TABLE ".%1 = "
LIBRARY_TABLE ".%3 AND " LIBRARY_TABLE ".%4 = 0")
.arg(CRATETRACKSTABLE_TRACKID, // %1
CRATETRACKSTABLE_CRATEID, // %2
LIBRARYTABLE_ID, // %3
LIBRARYTABLE_MIXXXDELETED)); // %4
oQuery.bindValue(":crate_id", crateId);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
if (oQuery.numRowsAffected() == 0) {
oTransaction.commit();
return;
}
// Update the number of auto-DJ-playlist references to each track.
// There's no way to avoid updating the number of references to tracks
// that were already in the database, but the auto-DJ-playlist is likely
// to be small compared to the number of tracks in auto-DJ crates, so
// this isn't so bad.
if (!updateAutoDjPlaylistReferences()) {
return;
}
// Update the last-played date/time for each track.
// Similarly, there's no way to avoid updating the last-played date/time
// of tracks that were already in the database.
if (!updateLastPlayedDateTime()) {
return;
}
// The transaction was successful.
oTransaction.commit();
} else {
// Remove a crate-reference from every track in this crate.
QSqlQuery oQuery(m_rDatabase);
// UPDATE temp_autodj_crates SET craterefs = craterefs - 1 WHERE track_id IN (SELECT track_id FROM crate_tracks WHERE crate_tracks.crate_id = :crate_id);
oQuery.prepare(QString("UPDATE " AUTODJCRATES_TABLE " SET "
AUTODJCRATESTABLE_CRATEREFS " = " AUTODJCRATESTABLE_CRATEREFS
" - 1 WHERE " AUTODJCRATESTABLE_TRACKID " IN (SELECT %1 FROM "
CRATE_TRACKS_TABLE " WHERE " CRATE_TRACKS_TABLE ".%2 = :crate_id)")
.arg(CRATETRACKSTABLE_TRACKID, // %1
CRATETRACKSTABLE_CRATEID)); // %2
oQuery.bindValue(":crate_id", crateId);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
// Remove all tracks that no longer have crate references.
//DELETE FROM temp_autodj_crates WHERE craterefs = 0;
oQuery.prepare("DELETE FROM "AUTODJCRATES_TABLE " WHERE "
AUTODJCRATESTABLE_CRATEREFS " = 0");
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
// The transaction was successful.
oTransaction.commit();
}
}
// Get the ID, i.e. one that references library.id, of a random track.
// Returns -1 if there was an error.
int AutoDJCratesDAO::getRandomTrackId(void) {
// If necessary, create the temporary auto-DJ-crates database.
createAutoDjCratesDatabase();
// Calculate the number of active-tracks that have never been played, and
// the total number of active-tracks.
QSqlQuery oQuery(m_rDatabase);
// SELECT COUNT(*) AS count FROM temp_autodj_activetracks WHERE timesplayed = 0 UNION ALL SELECT COUNT(*) AS count FROM temp_autodj_activetracks;
int iUnplayedTracks = 0, iTotalTracks = 0;
oQuery.prepare("SELECT COUNT(*) AS count FROM " AUTODJACTIVETRACKS_TABLE
" WHERE " AUTODJCRATESTABLE_TIMESPLAYED
" = 0 UNION ALL SELECT COUNT(*) AS count FROM "
AUTODJACTIVETRACKS_TABLE);
if (oQuery.exec()) {
if (oQuery.next()) {
iUnplayedTracks = oQuery.value(0).toInt();
if (oQuery.next())
iTotalTracks = oQuery.value(0).toInt();
}
} else {
LOG_FAILED_QUERY(oQuery);
return -1;
}
// Get the active percentage (default 20%).
int iMinimumAvailable = m_pConfig->getValueString (ConfigKey("[Auto DJ]",
"MinimumAvailable"), "20").toInt();
// Calculate the number of active-tracks. This is either the number of
// auto-DJ-crate tracks that have never been played, or the active
// percentage of the total number of tracks, whichever is larger.
int iMinAvailable = 0;
if (iMinimumAvailable) {
// if minimum is not disabled (= 0), have a min of one at least
iMinAvailable = qMax((iTotalTracks * iMinimumAvailable / 100), 1);
}
int iActiveTracks = qMax(iUnplayedTracks, iMinAvailable);
// The number of active-tracks might also be tracks that haven't been played
// in a while.
if (m_bUseIgnoreTime) {
// Get the current time, in UTC (since that's what sqlite uses).
QDateTime timCurrent = QDateTime::currentDateTimeUtc();
// Subtract the replay age.
QTime timIgnoreTime = (QTime::fromString(m_pConfig->getValueString
(ConfigKey("[Auto DJ]", "IgnoreTime"), "23:59"), "hh:mm"));
timCurrent = timCurrent.addSecs(-(timIgnoreTime.hour() * 3600
+ timIgnoreTime.minute() * 60));
// Convert the time to sqlite's format, which is similar to ISO date,
// but not quite.
QString strDateTime = timCurrent.toString("yyyy-MM-dd hh:mm:ss");
// Count the number of tracks that haven't been played since this time.
// SELECT COUNT(*) FROM temp_autodj_activetracks WHERE lastplayed < :lastplayed;
int iIgnoreTimeTracks = 0;
oQuery.prepare("SELECT COUNT(*) FROM " AUTODJACTIVETRACKS_TABLE
" WHERE " AUTODJCRATESTABLE_LASTPLAYED " < :lastplayed");
oQuery.bindValue (":lastplayed", strDateTime);
if (oQuery.exec()) {
if (oQuery.next()) {
iIgnoreTimeTracks = oQuery.value(0).toInt();
}
} else {
LOG_FAILED_QUERY(oQuery);
return -1;
}
// Allow that to be a new maximum.
iActiveTracks = qMax(iActiveTracks, iIgnoreTimeTracks);
}
// If there are no tracks, let our caller know.
if (iActiveTracks == 0)
return -1;
// Pick a random track.
// SELECT track_id FROM temp_autodj_activetracks LIMIT 1 OFFSET ABS (RANDOM() % :active);
oQuery.prepare("SELECT " AUTODJCRATESTABLE_TRACKID " FROM "
AUTODJACTIVETRACKS_TABLE " LIMIT 1 OFFSET ABS (RANDOM() % :active)");
oQuery.bindValue (":active", iActiveTracks);
if (oQuery.exec()) {
if (oQuery.next()) {
// Give our caller the randomly-selected track.
return oQuery.value(0).toInt();
}
} else {
LOG_FAILED_QUERY(oQuery);
}
// Let our caller know that a random track couldn't be picked.
return -1;
}
OGRErr OGRIDBTableLayer::ISetFeature( OGRFeature *poFeature )
{
OGRErr eErr(OGRERR_FAILURE);
if ( ! bUpdateAccess )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Error update feature. Layer is read only." );
return eErr;
}
if( NULL == poFeature )
{
CPLError( CE_Failure, CPLE_AppDefined,
"NULL pointer to OGRFeature passed to SetFeature()." );
return eErr;
}
if( poFeature->GetFID() == OGRNullFID )
{
CPLError( CE_Failure, CPLE_AppDefined,
"FID required on features given to SetFeature()." );
return eErr;
}
ITStatement oQuery( *poDS->GetConnection() );
int bUpdateGeom = TRUE;
CPLString osGeomFunc;
if ( poFeature->GetGeometryRef() )
{
OGRwkbGeometryType nGeomType = poFeature->GetGeometryRef()->getGeometryType();
switch (nGeomType)
{
case wkbPoint:
osGeomFunc = "ST_PointFromText";
break;
case wkbLineString:
osGeomFunc = "ST_LineFromText";
break;
case wkbPolygon:
osGeomFunc = "ST_PolyFromText";
break;
case wkbMultiPoint:
osGeomFunc = "ST_MPointFromText";
break;
case wkbMultiLineString:
osGeomFunc = "ST_MLineFromText";
break;
case wkbMultiPolygon:
osGeomFunc = "ST_MPolyFromText";
break;
default:
bUpdateGeom = FALSE;
CPLDebug("OGR_IDB", "SetFeature(): Unknown geometry type. Geometry will not be updated.");
}
}
else
bUpdateGeom = FALSE;
// Create query
CPLString osSql;
CPLString osFields;
if ( pszGeomColumn && bUpdateGeom )
{
OGRGeometry * poGeom = poFeature->GetGeometryRef();
char * wkt;
poGeom->exportToWkt( &wkt );
osFields.Printf( "%s = %s( '%s', %d )", pszGeomColumn, osGeomFunc.c_str(), wkt, nSRSId );
CPLFree( wkt );
}
for( int i = 0; i < poFeatureDefn->GetFieldCount(); i++ )
{
const char * pszFieldName = poFeatureDefn->GetFieldDefn(i)->GetNameRef();
// skip fid column from update
if ( EQUAL( pszFIDColumn, pszFieldName ) )
continue;
if ( ! osFields.empty() )
{
osFields += ",";
}
osFields += pszFieldName;
osFields += "=";
if ( ! poFeature->IsFieldSet( i ) )
{
osFields += "NULL";
continue;
}
CPLString osVal;
switch ( poFeatureDefn->GetFieldDefn( i )->GetType() )
{
case OFTInteger:
osVal.Printf( "%d", poFeature->GetFieldAsInteger( i ) );
break;
case OFTReal:
if ( poFeatureDefn->GetFieldDefn( i )->GetPrecision() )
{
// have a decimal format width.precision
CPLString osFormatString;
osFormatString.Printf( "%%%d.%df",
poFeatureDefn->GetFieldDefn( i )->GetWidth(),
poFeatureDefn->GetFieldDefn( i )->GetPrecision() );
osVal.Printf( osFormatString.c_str(), poFeature->GetFieldAsDouble( i ) );
}
else
osVal.Printf( "%f", poFeature->GetFieldAsDouble( i ) );
break;
case OFTIntegerList:
case OFTRealList:
case OFTStringList:
// FIXME Prepare array of values field
//cv->ConvertFrom( poFeature->GetFieldAsStringList( i ) );
//break;
case OFTBinary:
// FIXME Prepare binary field
case OFTString:
case OFTDate:
case OFTTime:
case OFTDateTime:
default:
osVal.Printf( "'%s'", poFeature->GetFieldAsString( i ) );
break;
}
osFields += osVal;
}
osSql.Printf( "UPDATE %s SET %s WHERE %s = %d",
poFeatureDefn->GetName(),
osFields.c_str(),
pszFIDColumn,
poFeature->GetFID() );
if ( ! oQuery.Prepare( osSql.c_str() ) )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Error prepare SQL.\n%s",osSql.c_str() );
return eErr;
}
CPLDebug( "OGR_IDB", "Exec(%s)", oQuery.QueryText().Data() );
if( !oQuery.Exec() )
{
CPLError( CE_Failure, CPLE_AppDefined, "Error update Feature.");
return eErr;
}
return OGRERR_NONE;
}
int AutoDJCratesDAO::getRandomTrackIdFromLibrary(const int iPlaylistId) {
if(kLeastPreferredPercent >= 50 || kLeastPreferredPercent < 0){
qDebug() << "Unacceptable value for kLeastPreferedPercent";
return -1;
}
// getRandomTrackId() would have already created the temporary auto-DJ-crates database.
QSqlQuery oQuery(m_rDatabase);
// We ignore tracks from [0,ignoreIndex1] and [ignoreIndex2+1,most_played_Track]
int iTrackId = -1, iTotalTracks = 0, beginIndex = 0, offset = 0, iIgnoreIndex1 = 0, iIgnoreIndex2 = 0;
oQuery.prepare(" SELECT COUNT(*)"
" FROM library"
" WHERE id NOT IN"
" ( SELECT track_id "
" FROM PlaylistTracks"
" WHERE playlist_id = :id )"
" AND location NOT IN"
" ( SELECT id FROM track_locations"
" WHERE fs_deleted == 1 )"
" AND mixxx_deleted != 1" );
oQuery.bindValue(":id",iPlaylistId);
if (oQuery.exec()) {
if (oQuery.next()) {
iTotalTracks = oQuery.value(0).toInt();
}
} else {
LOG_FAILED_QUERY(oQuery);
return -1;
}
//qDebug() << "Total Tracks: "<<iTotalTracks;
if(iTotalTracks == 0) return -1;
if(kLeastPreferredPercent != 0){
// Least Preferred is not disabled
iIgnoreIndex1 = (kLeastPreferredPercent * iTotalTracks) / 100;
iIgnoreIndex2 = iTotalTracks - iIgnoreIndex1;
int iRandomNo = qrand() % 16 ;
if(iRandomNo == 0 && iIgnoreIndex1 != 0) {
// Select a track from the first [1, iIgnoredIndex1]
beginIndex = 0;
offset = qrand() % iIgnoreIndex1 + 1 ;
} else if(iRandomNo == 1 && iTotalTracks > iIgnoreIndex2){
// Select from [iIgnoredIndex2 + 1, iTotalTracks];
beginIndex = iIgnoreIndex2;
// We need a number between [1, Total - iIgnoreIndex2]
offset = qrand() % (iTotalTracks - iIgnoreIndex2) + 1;
} else {
// Select from [iIgnoreIndex1 + 1, iIgnoreIndex2];
beginIndex = iIgnoreIndex1;
// We need a number between [1, iIgnoreIndex2 - iIgnoreIndex1]
offset = qrand() % (iIgnoreIndex2 - iIgnoreIndex1) + 1;
}
offset = beginIndex + offset;
// Incase we end up doing a qRand()%1 above
if( offset >= iTotalTracks)
offset= 0 ;
}
// Select tracks from library not in autoDJ playlist. Return track at the random offset
oQuery.prepare(" SELECT id"
" FROM library"
" WHERE id NOT IN"
" ( SELECT track_id "
" FROM PlaylistTracks"
" WHERE playlist_id = :id )"
" AND location NOT IN"
" ( SELECT id FROM track_locations"
" WHERE fs_deleted == 1 )"
" AND mixxx_deleted != 1"
" ORDER BY timesplayed"
" LIMIT 1"
" OFFSET :offset");
oQuery.bindValue(":id",iPlaylistId);
oQuery.bindValue(":offset",offset);
if (oQuery.exec()) {
if (oQuery.next()) {
//Get the trackId
iTrackId = oQuery.value(0).toInt();
}
} else {
LOG_FAILED_QUERY(oQuery);
}
return iTrackId;
}
OGRErr OGRIDBTableLayer::ICreateFeature( OGRFeature *poFeature )
{
OGRErr eErr(OGRERR_FAILURE);
if ( ! bUpdateAccess )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Error create feature. Layer is read only." );
return eErr;
}
if( NULL == poFeature )
{
CPLError( CE_Failure, CPLE_AppDefined,
"NULL pointer to OGRFeature passed to CreateFeature()." );
return eErr;
}
if( poFeature->GetFID() != OGRNullFID && pszFIDColumn == NULL )
{
CPLError( CE_Failure, CPLE_AppDefined,
"FID ignored on feature given to CreateFeature(). Unknown FID column." );
return eErr;
}
int bUpdateGeom = TRUE;
CPLString osGeomFunc;
if ( poFeature->GetGeometryRef() )
{
OGRwkbGeometryType nGeomType = poFeature->GetGeometryRef()->getGeometryType();
switch (nGeomType)
{
case wkbPoint:
osGeomFunc = "ST_PointFromText";
break;
case wkbLineString:
osGeomFunc = "ST_LineFromText";
break;
case wkbPolygon:
osGeomFunc = "ST_PolyFromText";
break;
case wkbMultiPoint:
osGeomFunc = "ST_MPointFromText";
break;
case wkbMultiLineString:
osGeomFunc = "ST_MLineFromText";
break;
case wkbMultiPolygon:
osGeomFunc = "ST_MPolyFromText";
break;
default:
bUpdateGeom = FALSE;
CPLDebug("OGR_IDB", "SetFeature(): Unknown geometry type. Geometry will not be updated.");
}
}
else
bUpdateGeom = FALSE;
// Create query
CPLString osSql;
CPLString osFields;
CPLString osValues;
if ( pszGeomColumn && bUpdateGeom )
{
OGRGeometry * poGeom = poFeature->GetGeometryRef();
char * wkt;
poGeom->exportToWkt( &wkt );
osFields += pszGeomColumn;
osValues.Printf( "%s( '%s', %d )", osGeomFunc.c_str(), wkt, nSRSId );
CPLFree( wkt );
}
for( int i = 0; i < poFeatureDefn->GetFieldCount(); i++ )
{
const char * pszFieldName = poFeatureDefn->GetFieldDefn(i)->GetNameRef();
// Skip NULL fields
if ( ! poFeature->IsFieldSet( i ) )
{
continue;
}
if ( ! osFields.empty() )
{
osFields += ",";
osValues += ",";
}
osFields += pszFieldName;
CPLString osVal;
switch ( poFeatureDefn->GetFieldDefn( i )->GetType() )
{
case OFTInteger:
osVal.Printf( "%d", poFeature->GetFieldAsInteger( i ) );
break;
case OFTReal:
if ( poFeatureDefn->GetFieldDefn( i )->GetPrecision() )
{
// have a decimal format width.precision
CPLString osFormatString;
osFormatString.Printf( "%%%d.%df",
poFeatureDefn->GetFieldDefn( i )->GetWidth(),
poFeatureDefn->GetFieldDefn( i )->GetPrecision() );
osVal.Printf( osFormatString.c_str(), poFeature->GetFieldAsDouble( i ) );
}
else
osVal.Printf( "%f", poFeature->GetFieldAsDouble( i ) );
break;
case OFTIntegerList:
case OFTRealList:
case OFTStringList:
// FIXME Prepare array of values field
//cv->ConvertFrom( poFeature->GetFieldAsStringList( i ) );
//break;
case OFTBinary:
// FIXME Prepare binary field
case OFTString:
case OFTDate:
case OFTTime:
case OFTDateTime:
default:
osVal.Printf( "'%s'", poFeature->GetFieldAsString( i ) );
break;
}
osValues += osVal;
}
osSql.Printf( "INSERT INTO %s (%s) VALUES (%s)",
poFeatureDefn->GetName(),
osFields.c_str(),
osValues.c_str() );
ITStatement oQuery( *poDS->GetConnection() );
if ( ! oQuery.Prepare( osSql.c_str() ) )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Error prepare SQL.\n%s",osSql.c_str() );
return eErr;
}
CPLDebug( "OGR_IDB", "Exec(%s)", oQuery.QueryText().Data() );
if( !oQuery.Exec() )
{
CPLError( CE_Failure, CPLE_AppDefined, "Error create Feature.");
return eErr;
}
ITQuery oFidQuery( *poDS->GetConnection() );
osSql.Printf( "SELECT MAX(%s) from %s", pszFIDColumn, poFeatureDefn->GetName() );
CPLDebug( "OGR_IDB", "Exec(%s)", osSql.c_str() );
ITRow * row = oFidQuery.ExecOneRow( osSql.c_str() );
if( ! row || row->NumColumns() < 1 )
{
CPLError( CE_Failure, CPLE_AppDefined, "Error create Feature.");
return eErr;
}
int fid = atoi( row->Column(0)->Printable() );
if ( fid > 0 )
poFeature->SetFID( fid );
else
{
CPLError( CE_Failure, CPLE_AppDefined, "Error create Feature. Unable to get new fid" );
return eErr;
}
return OGRERR_NONE;
}
// Create the temporary auto-DJ-crates table.
// Done the first time it's used, since the user might not even make
// use of this feature.
void AutoDJCratesDAO::createAutoDjCratesDatabase() {
// If the use of tracks that haven't been played in a while has changed,
// then the active-tracks view must be recreated.
bool bUseIgnoreTime = (bool) m_pConfig->getValueString(
ConfigKey("[Auto DJ]", "UseIgnoreTime"), "0").toInt();
if (m_bAutoDjCratesDbCreated) {
if (m_bUseIgnoreTime != bUseIgnoreTime) {
// Do all this in a single transaction.
ScopedTransaction oTransaction(m_rDatabase);
// Get rid of the old active-tracks view.
QSqlQuery oQuery(m_rDatabase);
oQuery.exec ("DROP VIEW IF EXISTS " AUTODJACTIVETRACKS_TABLE);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
// Create the new active-tracks view.
if (!createActiveTracksView (bUseIgnoreTime)) {
return;
}
// Remember the new setting.
m_bUseIgnoreTime = bUseIgnoreTime;
// Commit these changes.
oTransaction.commit();
}
} else {
m_bUseIgnoreTime = bUseIgnoreTime;
}
// If this database has already been created, skip this.
if (m_bAutoDjCratesDbCreated) {
return;
}
// Do all of this in a single transaction.
ScopedTransaction oTransaction(m_rDatabase);
// The auto-DJ-crates table contains the track ID, the number of references
// to that track ID in all of the auto-DJ crates, the number of times that
// track has been played, and the number of references to the track in the
// auto-DJ playlist (or in loaded decks). It filters out tracks that have
// been deleted from the database (i.e. "hidden" tracks).
// Create an empty table.
QSqlQuery oQuery(m_rDatabase);
// CREATE TEMP TABLE temp_autodj_crates (track_id INTEGER UNIQUE, craterefs INTEGER, timesplayed INTEGER, autodjrefs INTEGER, lastplayed DATETIME);
//oQuery.exec ("DROP TABLE IF EXISTS " AUTODJCRATES_TABLE);
QString strQuery("CREATE TEMP TABLE " AUTODJCRATES_TABLE
" (" AUTODJCRATESTABLE_TRACKID " INTEGER UNIQUE, "
AUTODJCRATESTABLE_CRATEREFS " INTEGER, "
AUTODJCRATESTABLE_TIMESPLAYED " INTEGER, "
AUTODJCRATESTABLE_AUTODJREFS " INTEGER, "
AUTODJCRATESTABLE_LASTPLAYED " DATETIME)");
oQuery.prepare(strQuery);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
// Fill out the first three columns.
// Supply default values for the last two.
// INSERT INTO temp_autodj_crates (track_id, craterefs, timesplayed, autodjrefs, lastplayed) SELECT crate_tracks.track_id, COUNT (*), library.timesplayed, 0, "" FROM crate_tracks, library WHERE crate_tracks.crate_id IN (SELECT id FROM crates WHERE autodj = 1) AND crate_tracks.track_id = library.id AND library.mixxx_deleted = 0 GROUP BY crate_tracks.track_id, library.timesplayed;
strQuery = QString("INSERT INTO " AUTODJCRATES_TABLE
" (" AUTODJCRATESTABLE_TRACKID ", " AUTODJCRATESTABLE_CRATEREFS ", "
AUTODJCRATESTABLE_TIMESPLAYED ", " AUTODJCRATESTABLE_AUTODJREFS ", "
AUTODJCRATESTABLE_LASTPLAYED ") SELECT " CRATE_TRACKS_TABLE
".%1 , COUNT (*), " LIBRARY_TABLE ".%2, 0, \"\" FROM "
CRATE_TRACKS_TABLE ", " LIBRARY_TABLE " WHERE " CRATE_TRACKS_TABLE
".%4 IN (SELECT %5 FROM " CRATE_TABLE " WHERE %6 = 1) AND "
CRATE_TRACKS_TABLE ".%1 = " LIBRARY_TABLE ".%7 AND " LIBRARY_TABLE
".%3 == 0 GROUP BY " CRATE_TRACKS_TABLE ".%1, " LIBRARY_TABLE ".%2")
.arg(CRATETRACKSTABLE_TRACKID, // %1
LIBRARYTABLE_TIMESPLAYED, // %2
LIBRARYTABLE_MIXXXDELETED, // %3
CRATETRACKSTABLE_CRATEID, // %4
CRATETABLE_ID, // %5
CRATETABLE_AUTODJ_SOURCE, // %6
LIBRARYTABLE_ID); // %7
oQuery.prepare(strQuery);
if (!oQuery.exec()) {
LOG_FAILED_QUERY(oQuery);
return;
}
// Fill out the number of auto-DJ-playlist references.
if (!updateAutoDjPlaylistReferences()) {
return;
}
// Fill out the last-played date/time.
if (!updateLastPlayedDateTime()) {
return;
}
// Create the active-tracks view.
//oQuery.exec ("DROP VIEW IF EXISTS " AUTODJACTIVETRACKS_TABLE);
if (!createActiveTracksView (m_bUseIgnoreTime)) {
return;
}
// Make a list of the IDs of every set-log playlist.
// SELECT id FROM Playlists WHERE hidden = 2;
oQuery.prepare(QString("SELECT %1 FROM " PLAYLIST_TABLE " WHERE %2 = %3")
.arg(PLAYLISTTABLE_ID, // %1
PLAYLISTTABLE_HIDDEN, // %2
QString::number(PlaylistDAO::PLHT_SET_LOG))); // %3
if (oQuery.exec()) {
while (oQuery.next())
m_lstSetLogPlaylistIds.append(oQuery.value(0).toInt());
} else {
LOG_FAILED_QUERY(oQuery);
return;
}
// Now the auto-DJ crates database is initialized.
// Externally-driven updates to the database from now on are driven by
// signals.
oTransaction.commit();
// Be notified when a track is modified.
// We only care when the number of times it's been played changes.
connect(&m_rTrackDAO, SIGNAL(trackDirty(int)),
this, SLOT(slotTrackDirty(int)));
// Be notified when the status of crates changes.
// We only care about the crates labeled as auto-DJ, and tracks added to,
// and removed from, such crates.
connect(&m_rCrateDAO, SIGNAL(added(int)),
this, SLOT(slotCrateAdded(int)));
connect(&m_rCrateDAO, SIGNAL(deleted(int)),
this, SLOT(slotCrateDeleted(int)));
connect(&m_rCrateDAO, SIGNAL(autoDjChanged(int,bool)),
this, SLOT(slotCrateAutoDjChanged(int,bool)));
connect(&m_rCrateDAO, SIGNAL(trackAdded(int,int)),
this, SLOT(slotCrateTrackAdded(int,int)));
connect(&m_rCrateDAO, SIGNAL(trackRemoved(int,int)),
this, SLOT(slotCrateTrackRemoved(int,int)));
// Be notified when playlists are added/removed.
// We only care about set-log playlists.
connect(&m_rPlaylistDAO, SIGNAL(added(int)),
this, SLOT(slotPlaylistAdded(int)));
connect(&m_rPlaylistDAO, SIGNAL(deleted(int)),
this, SLOT(slotPlaylistDeleted(int)));
// Be notified when tracks are added/removed from playlists.
// We only care about the auto-DJ playlist and the set-log playlists.
connect(&m_rPlaylistDAO, SIGNAL(trackAdded(int,int,int)),
this, SLOT(slotPlaylistTrackAdded(int,int,int)));
connect(&m_rPlaylistDAO, SIGNAL(trackRemoved(int,int,int)),
this, SLOT(slotPlaylistTrackRemoved(int,int,int)));
// Be notified when tracks are loaded to, or unloaded from, a deck.
// These count as auto-DJ references, i.e. prevent the track from being
// selected randomly.
connect(&PlayerInfo::Instance(), SIGNAL(trackLoaded(QString,TrackPointer)),
this, SLOT(slotPlayerInfoTrackLoaded(QString,TrackPointer)));
connect(&PlayerInfo::Instance(),
SIGNAL(trackUnloaded(QString,TrackPointer)),
this, SLOT(slotPlayerInfoTrackUnloaded(QString,TrackPointer)));
// Remember that the auto-DJ-crates database has been created.
m_bAutoDjCratesDbCreated = true;
}
OGRErr OGRIDBTableLayer::ISetFeature( OGRFeature *poFeature )
{
OGRErr eErr(OGRERR_FAILURE);
if ( ! bUpdateAccess )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Error update feature. Layer is read only." );
return eErr;
}
if( NULL == poFeature )
{
CPLError( CE_Failure, CPLE_AppDefined,
"NULL pointer to OGRFeature passed to SetFeature()." );
return eErr;
}
if( poFeature->GetFID() == OGRNullFID )
{
CPLError( CE_Failure, CPLE_AppDefined,
"FID required on features given to SetFeature()." );
return eErr;
}
ITStatement oQuery( *poDS->GetConnection() );
int bUpdateGeom = TRUE;
OGRwkbGeometryType nGeomType = poFeature->GetGeometryRef()->getGeometryType();
CPLString osGeomFunc;
int nSrid = 0; // FIXME Obtain geometry SRID
switch (nGeomType)
{
case wkbPoint:
osGeomFunc = "ST_PointFromText";
break;
case wkbLineString:
osGeomFunc = "ST_LineFromText";
break;
case wkbPolygon:
osGeomFunc = "ST_PolyFromText";
break;
case wkbMultiPoint:
osGeomFunc = "ST_MPointFromText";
break;
case wkbMultiLineString:
osGeomFunc = "ST_MLineFromText";
break;
case wkbMultiPolygon:
osGeomFunc = "ST_MPolyFromText";
break;
default:
bUpdateGeom = FALSE;
CPLDebug("OGR_IDB", "SetFeature(): Unknown geometry type. Geometry will not be updated.");
}
// Create query
CPLString osSql;
CPLString osFields;
if ( pszGeomColumn && bUpdateGeom )
{
osFields.Printf( "%s = %s( ?, %d )", pszGeomColumn, osGeomFunc.c_str(), nSrid );
}
for( int i = 0; i < poFeatureDefn->GetFieldCount(); i++ )
{
const char * pszFieldName = poFeatureDefn->GetFieldDefn(i)->GetNameRef();
// skip fid column from update
if ( EQUAL( pszFIDColumn, pszFieldName ) )
continue;
if ( ! osFields.empty() )
{
osFields += ",";
}
osFields += pszFieldName;
osFields += "=?";
}
osSql.Printf( "UPDATE %s SET %s WHERE %s = %d",
poFeatureDefn->GetName(),
osFields.c_str(),
pszFIDColumn,
poFeature->GetFID() );
if ( ! oQuery.Prepare( osSql.c_str() ) )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Error prepare SQL.\n%s",osSql.c_str() );
return eErr;
}
int iParam = 0;
if ( pszGeomColumn && bUpdateGeom )
{
ITValue * par = oQuery.Param( iParam ); // it should be a geom value
if ( ! par )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Error prepare geom param");
return eErr;
}
OGRGeometry * poGeom = poFeature->GetGeometryRef();
char * wkt;
poGeom->exportToWkt( &wkt );
if( ! par->FromPrintable( wkt ) )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Error prepare geom param");
par->Release();
return eErr;
}
CPLFree( wkt );
par->Release();
iParam++;
}
for ( int i = 0; i < poFeatureDefn->GetFieldCount(); i++ )
{
ITValue * par = oQuery.Param( iParam );
if ( ! par )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Error prepare param %d", iParam);
return eErr;
}
if ( ! poFeature->IsFieldSet( i ) )
{
if ( ! par->SetNull() )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Error set param %d to NULL", iParam);
par->Release();
return eErr;
}
par->Release();
continue;
}
ITConversions * cv = 0;
bool res = FALSE;
if ( par->QueryInterface( ITConversionsIID, (void **) &cv) !=
IT_QUERYINTERFACE_SUCCESS )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Error prepare param %d", iParam);
par->Release();
return eErr;
}
switch ( poFeatureDefn->GetFieldDefn( i )->GetType() )
{
case OFTInteger:
res = cv->ConvertFrom( poFeature->GetFieldAsInteger( i ) );
break;
case OFTReal:
res = cv->ConvertFrom( poFeature->GetFieldAsDouble( i ) );
break;
case OFTIntegerList:
case OFTRealList:
case OFTStringList:
// FIXME Prepare array of values field
//cv->ConvertFrom( poFeature->GetFieldAsStringList( i ) );
//break;
case OFTBinary:
// FIXME Prepare binary field
case OFTString:
case OFTDate:
case OFTTime:
case OFTDateTime:
res = cv->ConvertFrom( poFeature->GetFieldAsString( i ) );
break;
default:
CPLError( CE_Failure, CPLE_AppDefined,
"Error prepare param %d. Unknown data type.", iParam);
cv->Release();
par->Release();
return eErr;
}
if ( res != TRUE )
CPLError( CE_Failure, CPLE_AppDefined,
"Error prepare param.");
cv->Release();
par->Release();
}
CPLDebug( "OGR_IDB", "ExecuteSQL(%s)", oQuery.QueryText().Data() );
if( !oQuery.Exec() )
{
CPLError( CE_Failure, CPLE_AppDefined, "Error update Feature.");
return eErr;
}
return OGRERR_NONE;
}