qsql_psql.h

Go to the documentation of this file.
00001 /****************************************************************************
00002 **
00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
00004 ** All rights reserved.
00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
00006 **
00007 ** This file is part of the QtSql module of the Qt Toolkit.
00008 **
00009 ** $QT_BEGIN_LICENSE:LGPL$
00010 ** Commercial Usage
00011 ** Licensees holding valid Qt Commercial licenses may use this file in
00012 ** accordance with the Qt Commercial License Agreement provided with the
00013 ** Software or, alternatively, in accordance with the terms contained in
00014 ** a written agreement between you and Nokia.
00015 **
00016 ** GNU Lesser General Public License Usage
00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
00018 ** General Public License version 2.1 as published by the Free Software
00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
00020 ** packaging of this file.  Please review the following information to
00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
00023 **
00024 ** In addition, as a special exception, Nokia gives you certain additional
00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
00027 **
00028 ** GNU General Public License Usage
00029 ** Alternatively, this file may be used under the terms of the GNU
00030 ** General Public License version 3.0 as published by the Free Software
00031 ** Foundation and appearing in the file LICENSE.GPL included in the
00032 ** packaging of this file.  Please review the following information to
00033 ** ensure the GNU General Public License version 3.0 requirements will be
00034 ** met: http://www.gnu.org/copyleft/gpl.html.
00035 **
00036 ** If you have questions regarding the use of this file, please contact
00037 ** Nokia at qt-info@nokia.com.
00038 ** $QT_END_LICENSE$
00039 **
00040 ****************************************************************************/
00041 
00042 #ifndef QSQL_PSQL_H
00043 #define QSQL_PSQL_H
00044 
00045 #include <QtSql/qsqlresult.h>
00046 #include <QtSql/qsqldriver.h>
00047 
00048 #ifdef QT_PLUGIN
00049 #define Q_EXPORT_SQLDRIVER_PSQL
00050 #else
00051 #define Q_EXPORT_SQLDRIVER_PSQL Q_SQL_EXPORT
00052 #endif
00053 
00054 QT_BEGIN_HEADER
00055 
00056 typedef struct pg_conn PGconn;
00057 typedef struct pg_result PGresult;
00058 
00059 QT_BEGIN_NAMESPACE
00060 
00061 class QPSQLResultPrivate;
00062 class QPSQLDriverPrivate;
00063 class QPSQLDriver;
00064 class QSqlRecordInfo;
00065 
00066 class QPSQLResult : public QSqlResult
00067 {
00068     friend class QPSQLResultPrivate;
00069 public:
00070     QPSQLResult(const QPSQLDriver* db, const QPSQLDriverPrivate* p);
00071     ~QPSQLResult();
00072 
00073     QVariant handle() const;
00074     void virtual_hook(int id, void *data);
00075 
00076 protected:
00077     void cleanup();
00078     bool fetch(int i);
00079     bool fetchFirst();
00080     bool fetchLast();
00081     QVariant data(int i);
00082     bool isNull(int field);
00083     bool reset (const QString& query);
00084     int size();
00085     int numRowsAffected();
00086     QSqlRecord record() const;
00087     QVariant lastInsertId() const;
00088     bool prepare(const QString& query);
00089     bool exec();
00090 
00091 private:
00092     QPSQLResultPrivate *d;
00093 };
00094 
00095 class Q_EXPORT_SQLDRIVER_PSQL QPSQLDriver : public QSqlDriver
00096 {
00097     Q_OBJECT
00098 public:
00099     enum Protocol {
00100         Version6 = 6,
00101         Version7 = 7,
00102         Version71 = 8,
00103         Version73 = 9,
00104         Version74 = 10,
00105         Version8 = 11,
00106         Version81 = 12,
00107         Version82 = 13
00108     };
00109 
00110     explicit QPSQLDriver(QObject *parent=0);
00111     explicit QPSQLDriver(PGconn *conn, QObject *parent=0);
00112     ~QPSQLDriver();
00113     bool hasFeature(DriverFeature f) const;
00114     bool open(const QString & db,
00115               const QString & user,
00116               const QString & password,
00117               const QString & host,
00118               int port,
00119               const QString& connOpts);
00120     bool isOpen() const;
00121     void close();
00122     QSqlResult *createResult() const;
00123     QStringList tables(QSql::TableType) const;
00124     QSqlIndex primaryIndex(const QString& tablename) const;
00125     QSqlRecord record(const QString& tablename) const;
00126 
00127     Protocol protocol() const;
00128     QVariant handle() const;
00129 
00130     QString escapeIdentifier(const QString &identifier, IdentifierType type) const;
00131     QString formatValue(const QSqlField &field, bool trimStrings) const;
00132 
00133 protected:
00134     bool beginTransaction();
00135     bool commitTransaction();
00136     bool rollbackTransaction();
00137 
00138 protected Q_SLOTS:
00139     bool subscribeToNotificationImplementation(const QString &name);
00140     bool unsubscribeFromNotificationImplementation(const QString &name);
00141     QStringList subscribedToNotificationsImplementation() const;
00142 
00143 private Q_SLOTS:
00144     void _q_handleNotification(int);
00145 
00146 private:
00147     void init();
00148     QPSQLDriverPrivate *d;
00149 };
00150 
00151 QT_END_NAMESPACE
00152 
00153 QT_END_HEADER
00154 
00155 #endif // QSQL_PSQL_H