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/*
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* Copyright (C) 2015 Christian Ehringfeld <c.ehringfeld@t-online.de>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "database.h"
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using namespace CuteEntityManager;
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Database::Database(QSqlDatabase database) {
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this->database = database;
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this->init();
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this->connectionName = this->database.connectionName();
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}
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Database::Database(QString databaseType, QString connectionName,
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QString databasename) {
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this->database = QSqlDatabase::addDatabase(databaseType, connectionName);
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this->connectionName = connectionName;
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this->database.setDatabaseName(databasename);
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this->init();
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}
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Database::Database(QString databaseType, QString connectionName,
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QString hostname,
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QString databasename,
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QString username, QString password, qint64 port) {
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this->database = QSqlDatabase::addDatabase(databaseType, connectionName);
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this->connectionName = connectionName;
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this->database.setHostName(hostname);
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this->database.setDatabaseName(databasename);
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this->database.setUserName(username);
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this->database.setPassword(password);
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this->database.setPort(port);
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this->init();
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}
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void Database::init() {
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this->database.open();
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this->supportTransactions = this->database.driver()->hasFeature(
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QSqlDriver::Transactions);
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}
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Database::~Database() {
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if (this->database.isOpen()) {
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this->database.close();
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}
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QSqlDatabase::removeDatabase(this->connectionName);
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}
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QString Database::getConnectionName() {
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return this->connectionName;
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}
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bool Database::transaction(const QString &query) {
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bool rc = false;
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if (supportTransactions) {
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this->startTransaction();
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QSqlQuery sqlquery = QSqlQuery(this->database);
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sqlquery.exec(query);
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this->commitTransaction();
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} else {
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rc = this->exec(query);
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}
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qDebug() << "Executed Query:" << query;
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return rc;
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}
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QSqlQuery Database::getQuery() {
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return QSqlQuery(this->database);
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}
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QSqlQuery Database::getQuery(const QString &prepare) {
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QSqlQuery q = QSqlQuery(this->database);
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q.prepare(prepare);
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return q;
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}
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bool Database::transaction(const QStringList &queries) {
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bool ok = false;
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if (this->supportTransactions) {
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this->database.transaction();
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QSqlQuery sqlquery = QSqlQuery(this->database);
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for (int var = 0; var < queries.size(); ++var) {
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sqlquery.exec(queries.at(var));
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}
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ok = this->commitTransaction();
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} else {
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ok = this->exec(queries);
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}
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return ok;
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}
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bool Database::transaction(QSqlQuery &query) {
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this->startTransaction();
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query.exec();
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this->debugQuery(query);
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return this->commitTransaction();
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}
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bool Database::transaction(QList<QSqlQuery> &queries) {
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this->startTransaction();
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QSqlQuery q;
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for (int var = 0; var < queries.size(); ++var) {
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q = queries.at(var);
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q.exec();
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this->debugQuery(q);
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}
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return this->commitTransaction();
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}
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bool Database::commitTransaction() {
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return this->supportTransactions && this->database.commit();
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}
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bool Database::rollbackTransaction() {
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qDebug() << "Transaction rolled back!" << this->database.lastError().text();
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return supportTransactions && this->database.rollback();
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}
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DatabaseType Database::getDatabaseType(QString s) {
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if (s == "qmysql") {
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return DatabaseType::MYSQL;
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} else if (s == "qpgsql") {
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return DatabaseType::PGSQL;
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} else {
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return DatabaseType::SQLITE;
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}
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}
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QSharedPointer<Schema> Database::getSchema(DatabaseType db,
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QSharedPointer<Database> database) {
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switch (db) {
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case DatabaseType::SQLITE:
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return QSharedPointer<Schema>(new SqliteSchema(database));;
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break;
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// case PGSQL:
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// return QSharedPointer<Schema>(new PgSqlSchema());
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// break;
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// case MYSQL:
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// return QSharedPointer<Schema>(new MysqlSchema());
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// break;
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default:
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return QSharedPointer<Schema>(new SqliteSchema(database));
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break;
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}
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}
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bool Database::exec(const QString &query) {
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QSqlQuery q = QSqlQuery(this->database);
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bool ok = q.exec(query);
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this->debugQuery(q);
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return ok;
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}
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bool Database::exec(QStringList queries) {
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QSqlQuery q = QSqlQuery(this->database);
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bool ok = true;
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for (int var = 0; var < queries.size() && ok; ++var) {
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ok = q.exec(queries.at(var));
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this->debugQuery(q);
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if (!ok) {
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break;
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}
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}
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return ok;
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}
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bool Database::exec(QSqlQuery &query) {
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bool ok = query.exec();
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this->debugQuery(query);
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return ok;
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}
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bool Database::exec(QList<QSqlQuery> queries) {
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bool ok = true;
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QSqlQuery q = QSqlQuery(this->database);
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for (int var = 0; var < queries.size() && ok; ++var) {
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q = queries.at(var);
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ok = q.exec();
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this->debugQuery(q);
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if (!ok) {
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break;
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}
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}
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return ok;
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}
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void Database::debugQuery(const QSqlQuery &query) const {
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qDebug() << query.executedQuery();
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}
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bool Database::select(QSqlQuery &query) {
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query.setForwardOnly(true);
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bool ok = query.exec();
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this->debugQuery(query);
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return ok;
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}
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QSqlQuery Database::select(const QString &query) {
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QSqlQuery q = QSqlQuery(this->database);
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q.exec(query);
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this->debugQuery(q);
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return q;
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}
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void Database::startTransaction() {
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this->database.transaction();
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}
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QSqlDatabase Database::getDatabase() {
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return this->database;
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}
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