1 | // Copyright (C) 2016 The Qt Company Ltd. |
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
3 | |
4 | #ifndef QSQLNULLDRIVER_P_H |
5 | #define QSQLNULLDRIVER_P_H |
6 | |
7 | // |
8 | // W A R N I N G |
9 | // ------------- |
10 | // |
11 | // This file is not part of the Qt API. This header file may |
12 | // change from version to version without notice, or even be |
13 | // removed. |
14 | // |
15 | // We mean it. |
16 | // |
17 | |
18 | #include <QtSql/private/qtsqlglobal_p.h> |
19 | #include "QtCore/qvariant.h" |
20 | #include "QtSql/qsqldriver.h" |
21 | #include "QtSql/qsqlerror.h" |
22 | #include "QtSql/qsqlresult.h" |
23 | |
24 | QT_BEGIN_NAMESPACE |
25 | |
26 | class QSqlNullResult : public QSqlResult |
27 | { |
28 | public: |
29 | inline explicit QSqlNullResult(const QSqlDriver* d): QSqlResult(d) |
30 | { QSqlResult::setLastError( |
31 | QSqlError(QLatin1StringView("Driver not loaded" ), QLatin1StringView("Driver not loaded" ), QSqlError::ConnectionError)); } |
32 | protected: |
33 | inline QVariant data(int) override { return QVariant(); } |
34 | inline bool reset (const QString&) override { return false; } |
35 | inline bool fetch(int) override { return false; } |
36 | inline bool fetchFirst() override { return false; } |
37 | inline bool fetchLast() override { return false; } |
38 | inline bool isNull(int) override { return false; } |
39 | inline int size() override { return -1; } |
40 | inline int numRowsAffected() override { return 0; } |
41 | |
42 | inline void setAt(int) override {} |
43 | inline void setActive(bool) override {} |
44 | inline void setLastError(const QSqlError&) override {} |
45 | inline void setQuery(const QString&) override {} |
46 | inline void setSelect(bool) override {} |
47 | inline void setForwardOnly(bool) override {} |
48 | |
49 | inline bool exec() override { return false; } |
50 | inline bool prepare(const QString&) override { return false; } |
51 | inline bool savePrepare(const QString&) override { return false; } |
52 | inline void bindValue(int, const QVariant&, QSql::ParamType) override {} |
53 | inline void bindValue(const QString&, const QVariant&, QSql::ParamType) override {} |
54 | }; |
55 | |
56 | class QSqlNullDriver : public QSqlDriver |
57 | { |
58 | public: |
59 | inline QSqlNullDriver(): QSqlDriver() |
60 | { QSqlDriver::setLastError( |
61 | QSqlError(QLatin1StringView("Driver not loaded" ), QLatin1StringView("Driver not loaded" ), QSqlError::ConnectionError)); } |
62 | inline bool hasFeature(DriverFeature) const override { return false; } |
63 | inline bool open(const QString &, const QString &, const QString &, const QString &, int, const QString&) override |
64 | { return false; } |
65 | inline void close() override {} |
66 | inline QSqlResult *createResult() const override { return new QSqlNullResult(this); } |
67 | |
68 | protected: |
69 | inline void setOpen(bool) override {} |
70 | inline void setOpenError(bool) override {} |
71 | inline void setLastError(const QSqlError&) override {} |
72 | }; |
73 | |
74 | QT_END_NAMESPACE |
75 | |
76 | #endif // QSQLNULLDRIVER_P_H |
77 | |