1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtSql module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QSQLRESULT_H 41 #define QSQLRESULT_H 42 43 #include <QtSql/qtsqlglobal.h> 44 #include <QtCore/qvariant.h> 45 #include <QtCore/qvector.h> 46 47 // for testing: 48 class tst_QSqlQuery; 49 50 QT_BEGIN_NAMESPACE 51 52 53 class QString; 54 class QSqlRecord; 55 template <typename T> class QVector; 56 class QVariant; 57 class QSqlDriver; 58 class QSqlError; 59 class QSqlResultPrivate; 60 61 class Q_SQL_EXPORT QSqlResult 62 { 63 Q_DECLARE_PRIVATE(QSqlResult) 64 friend class QSqlQuery; 65 friend class QSqlTableModelPrivate; 66 // for testing: 67 friend class ::tst_QSqlQuery; 68 69 public: 70 virtual ~QSqlResult(); 71 virtual QVariant handle() const; 72 73 protected: 74 enum BindingSyntax { 75 PositionalBinding, 76 NamedBinding 77 }; 78 79 explicit QSqlResult(const QSqlDriver * db); 80 QSqlResult(QSqlResultPrivate &dd); 81 int at() const; 82 QString lastQuery() const; 83 QSqlError lastError() const; 84 bool isValid() const; 85 bool isActive() const; 86 bool isSelect() const; 87 bool isForwardOnly() const; 88 const QSqlDriver* driver() const; 89 virtual void setAt(int at); 90 virtual void setActive(bool a); 91 virtual void setLastError(const QSqlError& e); 92 virtual void setQuery(const QString& query); 93 virtual void setSelect(bool s); 94 virtual void setForwardOnly(bool forward); 95 96 // prepared query support 97 virtual bool exec(); 98 virtual bool prepare(const QString& query); 99 virtual bool savePrepare(const QString& sqlquery); 100 virtual void bindValue(int pos, const QVariant& val, QSql::ParamType type); 101 virtual void bindValue(const QString& placeholder, const QVariant& val, 102 QSql::ParamType type); 103 void addBindValue(const QVariant& val, QSql::ParamType type); 104 QVariant boundValue(const QString& placeholder) const; 105 QVariant boundValue(int pos) const; 106 QSql::ParamType bindValueType(const QString& placeholder) const; 107 QSql::ParamType bindValueType(int pos) const; 108 int boundValueCount() const; 109 QVector<QVariant>& boundValues() const; 110 QString executedQuery() const; 111 QString boundValueName(int pos) const; 112 void clear(); 113 bool hasOutValues() const; 114 115 BindingSyntax bindingSyntax() const; 116 117 virtual QVariant data(int i) = 0; 118 virtual bool isNull(int i) = 0; 119 virtual bool reset(const QString& sqlquery) = 0; 120 virtual bool fetch(int i) = 0; 121 virtual bool fetchNext(); 122 virtual bool fetchPrevious(); 123 virtual bool fetchFirst() = 0; 124 virtual bool fetchLast() = 0; 125 virtual int size() = 0; 126 virtual int numRowsAffected() = 0; 127 virtual QSqlRecord record() const; 128 virtual QVariant lastInsertId() const; 129 130 enum VirtualHookOperation { }; 131 virtual void virtual_hook(int id, void *data); 132 virtual bool execBatch(bool arrayBind = false); 133 virtual void detachFromResultSet(); 134 virtual void setNumericalPrecisionPolicy(QSql::NumericalPrecisionPolicy policy); 135 QSql::NumericalPrecisionPolicy numericalPrecisionPolicy() const; 136 virtual bool nextResult(); 137 void resetBindCount(); // HACK 138 139 QSqlResultPrivate *d_ptr; 140 141 private: 142 Q_DISABLE_COPY(QSqlResult) 143 }; 144 145 QT_END_NAMESPACE 146 147 #endif // QSQLRESULT_H 148