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 QSQLRESULT_P_H
5#define QSQLRESULT_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists for the convenience
12// of qsql*model.h . This header file may change from version to version
13// without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <QtSql/private/qtsqlglobal_p.h>
19#include <QtCore/qpointer.h>
20#include <QtCore/qhash.h>
21#include "qsqlerror.h"
22#include "qsqlresult.h"
23#include "qsqldriver.h"
24
25QT_BEGIN_NAMESPACE
26
27// convenience method Q*ResultPrivate::drv_d_func() returns pointer to private driver. Compare to Q_DECLARE_PRIVATE in qglobal.h.
28#define Q_DECLARE_SQLDRIVER_PRIVATE(Class) \
29 inline const Class##Private* drv_d_func() const { return !sqldriver ? nullptr : reinterpret_cast<const Class *>(static_cast<const QSqlDriver*>(sqldriver))->d_func(); } \
30 inline Class##Private* drv_d_func() { return !sqldriver ? nullptr : reinterpret_cast<Class *>(static_cast<QSqlDriver*>(sqldriver))->d_func(); }
31
32struct QHolder {
33 QHolder(const QString &hldr = QString(), qsizetype index = -1): holderName(hldr), holderPos(index) { }
34 bool operator==(const QHolder &h) const { return h.holderPos == holderPos && h.holderName == holderName; }
35 bool operator!=(const QHolder &h) const { return h.holderPos != holderPos || h.holderName != holderName; }
36 QString holderName;
37 qsizetype holderPos;
38};
39
40class Q_SQL_EXPORT QSqlResultPrivate
41{
42 Q_DECLARE_PUBLIC(QSqlResult)
43
44public:
45 QSqlResultPrivate(QSqlResult *q, const QSqlDriver *drv)
46 : q_ptr(q),
47 sqldriver(const_cast<QSqlDriver *>(drv))
48 { }
49 virtual ~QSqlResultPrivate() = default;
50
51 void clearValues()
52 {
53 values.clear();
54 bindCount = 0;
55 }
56
57 void resetBindCount()
58 {
59 bindCount = 0;
60 }
61
62 void clearIndex()
63 {
64 indexes.clear();
65 holders.clear();
66 types.clear();
67 }
68
69 void clear()
70 {
71 clearValues();
72 clearIndex();
73 }
74
75 virtual QString fieldSerial(qsizetype) const;
76 QString positionalToNamedBinding(const QString &query) const;
77 QString namedToPositionalBinding(const QString &query);
78 QString holderAt(int index) const;
79
80 QSqlResult *q_ptr = nullptr;
81 QPointer<QSqlDriver> sqldriver;
82 QString sql;
83 QSqlError error;
84
85 QString executedQuery;
86 QHash<int, QSql::ParamType> types;
87 QList<QVariant> values;
88 using IndexMap = QHash<QString, QList<int>>;
89 IndexMap indexes;
90
91 using QHolderVector = QList<QHolder>;
92 QHolderVector holders;
93
94 QSqlResult::BindingSyntax binds = QSqlResult::PositionalBinding;
95 QSql::NumericalPrecisionPolicy precisionPolicy = QSql::LowPrecisionDouble;
96 int idx = QSql::BeforeFirstRow;
97 int bindCount = 0;
98 bool active = false;
99 bool isSel = false;
100 bool forwardOnly = false;
101 bool positionalBindingEnabled = true;
102
103 static bool isVariantNull(const QVariant &variant);
104};
105
106QT_END_NAMESPACE
107
108#endif // QSQLRESULT_P_H
109

source code of qtbase/src/sql/kernel/qsqlresult_p.h