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****************************************************************************/

#ifndef QSQL_PSQL_H

#define QSQL_PSQL_H

#include <QtSql/qsqlresult.h>

#include <QtSql/qsqldriver.h>

#ifdef QT_PLUGIN

#define Q_EXPORT_SQLDRIVER_PSQL

#else

#define Q_EXPORT_SQLDRIVER_PSQL Q_SQL_EXPORT

#endif

QT_BEGIN_HEADER

typedef struct pg_conn PGconn;

typedef struct pg_result PGresult;

QT_BEGIN_NAMESPACE

class QPSQLResultPrivate;

class QPSQLDriverPrivate;

class QPSQLDriver;

class QSqlRecordInfo;

class QPSQLResult : public QSqlResult

{

    friend class QPSQLResultPrivate;

public:

    QPSQLResult(const QPSQLDriver* db, const QPSQLDriverPrivate* p);

    ~QPSQLResult();

    QVariant handle() const;

    void virtual_hook(int id, void *data);

protected:

    void cleanup();

    bool fetch(int i);

    bool fetchFirst();

    bool fetchLast();

    QVariant data(int i);

    bool isNull(int field);

    bool reset (const QString& query);

    int size();

    int numRowsAffected();

    QSqlRecord record() const;

    QVariant lastInsertId() const;

    bool prepare(const QString& query);

    bool exec();

private:

    QPSQLResultPrivate *d;

};

class Q_EXPORT_SQLDRIVER_PSQL QPSQLDriver : public QSqlDriver

{

    Q_OBJECT

public:

    enum Protocol {

        Version6 = 6,

        Version7 = 7,

        Version71 = 8,

        Version73 = 9,

        Version74 = 10,

        Version8 = 11,

        Version81 = 12,

        Version82 = 13

    };

    explicit QPSQLDriver(QObject *parent=0);

    explicit QPSQLDriver(PGconn *conn, QObject *parent=0);

    ~QPSQLDriver();

    bool hasFeature(DriverFeature f) const;

    bool open(const QString & db,

              const QString & user,

              const QString & password,

              const QString & host,

              int port,

              const QString& connOpts);

    bool isOpen() const;

    void close();

    QSqlResult *createResult() const;

    QStringList tables(QSql::TableType) const;

    QSqlIndex primaryIndex(const QString& tablename) const;

    QSqlRecord record(const QString& tablename) const;

    Protocol protocol() const;

    QVariant handle() const;

    QString escapeIdentifier(const QString &identifier, IdentifierType type) const;

    QString formatValue(const QSqlField &field, bool trimStrings) const;

protected:

    bool beginTransaction();

    bool commitTransaction();

    bool rollbackTransaction();

protected Q_SLOTS:

    bool subscribeToNotificationImplementation(const QString &name);

    bool unsubscribeFromNotificationImplementation(const QString &name);

    QStringList subscribedToNotificationsImplementation() const;

private Q_SLOTS:

    void _q_handleNotification(int);

private:

    void init();

    QPSQLDriverPrivate *d;

};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QSQL_PSQL_H