mirror of
https://github.com/QuasarApp/SoundBand.git
synced 2025-04-28 16:24:32 +00:00
388 lines
10 KiB
C++
388 lines
10 KiB
C++
#include "mysql.h"
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#include <QSqlQuery>
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#include <QtSql>
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#include "exaptions.h"
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namespace syncLib{
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MySql::MySql(const QString &databasename):
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db(nullptr),
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qyery(nullptr)
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{
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initDB(databasename);
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}
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bool MySql::exec(QSqlQuery *sq,const QString& sqlFile){
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QFile f(sqlFile);
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bool result=true;
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if(f.open(QIODevice::ReadOnly)){
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QString temp,delimiter=";";
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QTextStream stream(&f);
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stream.setCodec("UTF8");
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while(!stream.atEnd()){
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temp+=stream.readLine();
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if(temp.lastIndexOf("delimiter",-1,Qt::CaseInsensitive)>-1){
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temp.remove("delimiter",Qt::CaseInsensitive);
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int last=temp.indexOf(QRegularExpression("[^ \f\n\r\t\v]"))+1;
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int begin=temp.lastIndexOf(QRegularExpression("[^ \f\n\r\t\v]"));
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delimiter=temp.mid(begin,last-begin);
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temp="";
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}else{
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if(temp.lastIndexOf(delimiter)>-1){
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temp.remove(delimiter);
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(result=result&&sq->exec(temp));
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temp="";
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}
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}
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}
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return result;
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}
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return false;
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}
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void MySql::initDB(const QString &database){
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if(db) return;
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dataBaseName = database;
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db = new QSqlDatabase();
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*db = QSqlDatabase::addDatabase("QSQLITE", database);
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QDir d(QString("./%0").arg(dataBaseName));
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db->setDatabaseName(d.absolutePath());
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if(db->open()){
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qyery = new QSqlQuery(*db);
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QString qyer = QString("CREATE TABLE IF NOT EXISTS songs("
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"id INTEGER PRIMARY KEY AUTOINCREMENT, "
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"name VARCHAR(100), "
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"size INT NOT NULL, "
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"data BLOB NOT NULL "
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")");
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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throw InitDBError();
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delete db;
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return;
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}
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qyer = QString("CREATE UNIQUE INDEX IF NOT EXISTS isongs ON songs(name,size)");
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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throw InitDBError();
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delete db;
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return;
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}
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qyer = QString("CREATE TABLE IF NOT EXISTS playlists("
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"id INTEGER PRIMARY KEY AUTOINCREMENT, "
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"name VARCHAR(50) NOT NULL UNIQUE, "
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"description VARCHAR(1000) DEFAULT 'without description', "
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"image BLOB "
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")");
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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throw InitDBError();
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delete db;
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return;
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}
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qyer = QString("CREATE TABLE IF NOT EXISTS playlistsdata("
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"playlist INT NOT NULL,"
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"song INT NOT NULL,"
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"FOREIGN KEY(playlist) REFERENCES playlists(id)"
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" ON UPDATE CASCADE"
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" ON DELETE CASCADE,"
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"FOREIGN KEY(song) REFERENCES songs(id)"
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" ON UPDATE CASCADE"
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" ON DELETE CASCADE"
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")");
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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throw InitDBError();
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delete db;
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return;
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}
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qyer = QString("CREATE UNIQUE INDEX IF NOT EXISTS iplaylistsdata ON playlistsdata(playlist,song)");
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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throw InitDBError();
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delete db;
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return;
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}
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}
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}
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void MySql::sqlErrorLog(const QString &qyery){
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#ifdef QT_DEBUG
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qDebug()<< qyery << ": fail:\n " <<this->qyery->lastError();
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#endif
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}
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int MySql::save(const Song &song){
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QString qyer = QString("SELECT id from songs where name='%0' and size=%1").arg(song.name,
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QString::number(song.size));
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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return -1;
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}
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if(qyery->next()){
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return qyery->value(0).toInt();
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}
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qyer = QString("INSERT INTO songs (name,size,data) VALUES"
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"('%0',%1,:val)").arg(song.name,
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QString::number(song.size));
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if(!qyery->prepare(qyer)){
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sqlErrorLog(qyer + " prepare error");
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return -1;
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}
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qyery->bindValue(":val",song.source);
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if(!qyery->exec()){
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sqlErrorLog(qyer);
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return -1;
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}
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if(!qyery->exec(QString("SELECT MAX(id) from songs"))){
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sqlErrorLog(qyer);
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return -1;
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}
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if(!qyery->next())
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return -1;
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int result = qyery->value(0).toInt();
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return result;
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}
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int MySql::save(const QString &url){
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QFile f(url);
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if(!f.open(QIODevice::ReadOnly)){
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return -1;
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}
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QByteArray bytes = f.readAll();
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f.close();
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QString name = url.right(url.lastIndexOf(QRegularExpression("[\\/]"))); // meby [[\\\/]]
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Song song;
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song.name = name;
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song.size = bytes.size();
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song.source = bytes;
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if(!song.isNameValid()){
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return -1;
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}
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return save(song);
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}
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bool MySql::load(const SongHeader &song,Song &result){
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result.clear();
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if(song.id > -1){
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QString qyer = QString("SELECT * from songs where id=%0").arg(song.id);
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if(!qyery->exec(qyer)){
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return false;
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}
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}else if(!song.name.isEmpty() && song.size > 0){
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QString qyer = QString("SELECT * from songs where name='%0' and size=%1").arg(song.name).arg(song.size);
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if(!qyery->exec(qyer)){
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return false;
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}
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}else {
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return false;
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}
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if(!qyery->next()){
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return false;
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}
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result.id = qyery->value(0).toInt();
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result.name = qyery->value(1).toString();
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result.size = qyery->value(2).toInt();
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result.source = qyery->value(3).toByteArray();
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return true;
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}
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bool MySql::updateAvailableSongs(QList<SongHeader>& list, const QString& playList){
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QString qyer;
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if(playList.isEmpty()){
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qyer = QString("SELECT id,name,size from songs");
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}else{
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qyer = QString("SELECT id,name,size from songs where "
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"id = (select song from playlistsdata where playlist='%0')").arg(playList);
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}
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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return false;
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}
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list.clear();
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while(qyery->next()){
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SongHeader song;
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song.id = qyery->value(0).toInt();
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song.name = qyery->value(1).toString();
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song.size = qyery->value(2).toInt();
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list.push_back(song);
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}
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return true;
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}
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bool MySql::updateAvailableSongs(QStringList& list, const QString& playList){
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QList<SongHeader> tempList;
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if(!updateAvailableSongs(tempList, playList))
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return false;
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for(SongHeader &header : tempList){
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list.push_back(header.name);
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}
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return true;
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}
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bool MySql::removeSong(const SongHeader &header){
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if(header.id > -1){
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QString qyer = QString("DELETE from songs where id=%0").arg(header.id);
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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return false;
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}
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}else if(!header.name.isEmpty() && header.size > 0){
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QString qyer = QString("DELETE from songs where name='%0' and size=%1").arg(header.name).arg(header.size);
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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return false;
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}
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}else {
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return false;
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}
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return true;
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}
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bool MySql::addPlayList(const QString &newPlayList, const QString& desc){
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if(newPlayList == ALL_SONGS_LIST)
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return false;
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QString qyer = QString("INSERT INTO playlists(name, description) VALUES('%0', '%1')").arg(newPlayList, desc);
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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return false;
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}
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return true;
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}
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bool MySql::addToPlayList(const SongHeader &header, const QString &newPlaylist){
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if(newPlaylist == ALL_SONGS_LIST)
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return false;
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if(header.id > -1){
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QString qyer = QString("INSERT INTO playlistsdata(song, playlist) VALUES(%0,'%1')").arg(header.id).arg(newPlaylist);
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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return false;
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}
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}else if(!header.name.isEmpty() && header.size > 0){
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QString qyer = QString("INSERT INTO playlistsdata(song, playlist) "
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"VALUES((SELECT id from songs where name='%0' and size='%1'),'%2')")
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.arg(header.name).arg(header.size).arg(newPlaylist);
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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return false;
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}
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}else {
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return false;
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}
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return true;
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}
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bool MySql::removeFromPlayList(const SongHeader &header, const QString &playList){
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if(playList == ALL_SONGS_LIST)
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return false;
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if(header.id > -1){
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QString qyer = QString("DELETE from playlistsdata where song=%0 and playlist='%1'").arg(header.id).arg(playList);
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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return false;
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}
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}else if(!header.name.isEmpty() && header.size > 0){
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QString qyer = QString("DELETE from playlistsdata where "
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"song=(SELECT id from songs where name='%0' and size='%1') and playlist='%2'")
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.arg(header.name).arg(header.size).arg(playList);
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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return false;
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}
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}else {
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return false;
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}
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return true;
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}
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bool MySql::removePlayList(const QString &playList){
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if(playList == ALL_SONGS_LIST)
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return false;
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QString qyer = QString("DELETE from playlists where name='%0'").arg(playList);
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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return false;
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}
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return true;
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}
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bool MySql::getPlayLists(QStringList &list){
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QString qyer = QString("SELECT name from playlists");
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if(!qyery->exec(qyer)){
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sqlErrorLog(qyer);
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return false;
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}
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list.clear();
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list.push_back(ALL_SONGS_LIST);
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while(qyery->next()){
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list.push_back(qyery->value(0).toString());
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}
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return true;
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}
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int MySql::getSongId(const QString &name){
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if(name.isEmpty()){
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return -1;
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}
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QString qyer = QString("SELECT id from songs where name='%0'").arg(name);
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if(!qyery->exec(qyer)){
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return -1;
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}
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if(qyery->size() != 1){
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throw DataBaseError();
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}
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if(!qyery->next()){
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return -1;
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}
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return qyery->value(0).toInt();;
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}
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void MySql::clear(){
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qyery->exec("vacuum");
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}
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MySql::~MySql(){
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delete db;
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QSqlDatabase::removeDatabase(dataBaseName);
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}
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}
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