| /**************************************************************************** |
| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtSql module of the Qt Toolkit. |
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| ** $QT_BEGIN_LICENSE:LGPL21$ |
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| ** GNU Lesser General Public License Usage |
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| ****************************************************************************/ |
| |
| #ifndef QSQLNULLDRIVER_P_H |
| #define QSQLNULLDRIVER_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. This header file may |
| // change from version to version without notice, or even be |
| // removed. |
| // |
| // We mean it. |
| // |
| |
| #include "QtCore/qvariant.h" |
| #include "QtSql/qsqldriver.h" |
| #include "QtSql/qsqlerror.h" |
| #include "QtSql/qsqlresult.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QSqlNullResult : public QSqlResult |
| { |
| public: |
| inline explicit QSqlNullResult(const QSqlDriver* d): QSqlResult(d) |
| { QSqlResult::setLastError( |
| QSqlError(QLatin1String("Driver not loaded"), QLatin1String("Driver not loaded"), QSqlError::ConnectionError)); } |
| protected: |
| inline QVariant data(int) { return QVariant(); } |
| inline bool reset (const QString&) { return false; } |
| inline bool fetch(int) { return false; } |
| inline bool fetchFirst() { return false; } |
| inline bool fetchLast() { return false; } |
| inline bool isNull(int) { return false; } |
| inline int size() { return -1; } |
| inline int numRowsAffected() { return 0; } |
| |
| inline void setAt(int) {} |
| inline void setActive(bool) {} |
| inline void setLastError(const QSqlError&) {} |
| inline void setQuery(const QString&) {} |
| inline void setSelect(bool) {} |
| inline void setForwardOnly(bool) {} |
| |
| inline bool exec() { return false; } |
| inline bool prepare(const QString&) { return false; } |
| inline bool savePrepare(const QString&) { return false; } |
| inline void bindValue(int, const QVariant&, QSql::ParamType) {} |
| inline void bindValue(const QString&, const QVariant&, QSql::ParamType) {} |
| }; |
| |
| class QSqlNullDriver : public QSqlDriver |
| { |
| public: |
| inline QSqlNullDriver(): QSqlDriver() |
| { QSqlDriver::setLastError( |
| QSqlError(QLatin1String("Driver not loaded"), QLatin1String("Driver not loaded"), QSqlError::ConnectionError)); } |
| inline bool hasFeature(DriverFeature) const { return false; } |
| inline bool open(const QString &, const QString & , const QString & , |
| const QString &, int, const QString&) |
| { return false; } |
| inline void close() {} |
| inline QSqlResult *createResult() const { return new QSqlNullResult(this); } |
| |
| protected: |
| inline void setOpen(bool) {} |
| inline void setOpenError(bool) {} |
| inline void setLastError(const QSqlError&) {} |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QSQLNULLDRIVER_P_H |