Qt 6.x
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qsqlfield.h
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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 QSQLFIELD_H
5#define QSQLFIELD_H
6
7#include <QtSql/qtsqlglobal.h>
8#include <QtCore/qshareddata.h>
9#include <QtCore/qvariant.h>
10#include <QtCore/qstring.h>
11
12QT_BEGIN_NAMESPACE
13
14
15class QSqlFieldPrivate;
16QT_DECLARE_QESDP_SPECIALIZATION_DTOR_WITH_EXPORT(QSqlFieldPrivate, Q_SQL_EXPORT)
17
18class Q_SQL_EXPORT QSqlField
19{
20public:
21 enum RequiredStatus { Unknown = -1, Optional = 0, Required = 1 };
22
23 explicit QSqlField(const QString& fieldName = QString(), QMetaType type = QMetaType(), const QString &tableName = QString());
24
25 QSqlField(const QSqlField& other);
26 QSqlField& operator=(const QSqlField& other);
27 QSqlField(QSqlField &&other) noexcept = default;
28 QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QSqlField)
29 ~QSqlField();
30
31 void swap(QSqlField &other) noexcept { val.swap(other.val); d.swap(other.d); }
32
33 bool operator==(const QSqlField& other) const;
34 inline bool operator!=(const QSqlField &other) const { return !operator==(other); }
35
36 void setValue(const QVariant& value);
37 inline QVariant value() const
38 { return val; }
39 void setName(const QString& name);
40 QString name() const;
41 void setTableName(const QString &tableName);
42 QString tableName() const;
43 bool isNull() const;
44 void setReadOnly(bool readOnly);
45 bool isReadOnly() const;
46 void clear();
47 bool isAutoValue() const;
48
49 QMetaType metaType() const;
50 void setMetaType(QMetaType type);
51
52#if QT_DEPRECATED_SINCE(6, 0)
53 QT_WARNING_PUSH
54 QT_WARNING_DISABLE_DEPRECATED
55 QT_DEPRECATED_VERSION_X_6_0("Use the constructor using a QMetaType instead")
56 QSqlField(const QString& fieldName, QVariant::Type type, const QString &tableName = QString())
57 : QSqlField(fieldName, QMetaType(type), tableName)
58 {}
59 QT_DEPRECATED_VERSION_X_6_0("Use metaType() instead")
60 QVariant::Type type() const { return QVariant::Type(metaType().id()); };
61 QT_DEPRECATED_VERSION_X_6_0("Use setMetaType() instead")
62 void setType(QVariant::Type type) { setMetaType(QMetaType(int(type))); }
63 QT_WARNING_POP
64#endif
65
66 void setRequiredStatus(RequiredStatus status);
67 inline void setRequired(bool required)
68 { setRequiredStatus(required ? Required : Optional); }
69 void setLength(int fieldLength);
70 void setPrecision(int precision);
71 void setDefaultValue(const QVariant &value);
72 void setSqlType(int type);
73 void setGenerated(bool gen);
74 void setAutoValue(bool autoVal);
75
76 RequiredStatus requiredStatus() const;
77 int length() const;
78 int precision() const;
79 QVariant defaultValue() const;
80 int typeID() const;
81 bool isGenerated() const;
82 bool isValid() const;
83
84private:
85 void detach();
86 // ### Qt7: move to private class
87 QVariant val;
88 QExplicitlySharedDataPointer<QSqlFieldPrivate> d;
89};
90
91#ifndef QT_NO_DEBUG_STREAM
92Q_SQL_EXPORT QDebug operator<<(QDebug, const QSqlField &);
93#endif
94
95QT_END_NAMESPACE
96
97#endif // QSQLFIELD_H
QDebug
\inmodule QtCore
QMetaType
\inmodule QtCore
Definition qmetatype.h:320
QSqlField
The QSqlField class manipulates the fields in SQL database tables and views.
Definition qsqlfield.h:19
QSqlField::RequiredStatus
RequiredStatus
Specifies whether the field is required or optional.
Definition qsqlfield.h:21
QSqlField::QSqlField
QSqlField(QSqlField &&other) noexcept=default
QSqlField::operator!=
bool operator!=(const QSqlField &other) const
Returns true if the field is unequal to other; otherwise returns false.
Definition qsqlfield.h:34
QSqlField::QSqlField
QSqlField(const QSqlField &other)
Constructs a copy of other.
QSqlField::setRequired
void setRequired(bool required)
Sets the required status of this field to \l Required if required is true; otherwise sets it to \l Op...
Definition qsqlfield.h:67
QSqlField::~QSqlField
~QSqlField()
Destroys the object and frees any allocated resources.
QSqlField::value
QVariant value() const
Returns the value of the field as a QVariant.
Definition qsqlfield.h:37
QSqlField::swap
void swap(QSqlField &other) noexcept
Definition qsqlfield.h:31
QSqlField::operator=
QSqlField & operator=(const QSqlField &other)
Sets the field equal to other.
QString
\macro QT_RESTRICTED_CAST_FROM_ASCII
Definition qstring.h:127
QVariant
\inmodule QtCore
Definition qvariant.h:64
clear
b clear()
setName
employee setName("Richard Schmit")
QT_BEGIN_NAMESPACE
Combined button and popup list for selecting options.
Definition qstandardpaths_haiku.cpp:21
QT_END_NAMESPACE
Definition qsharedpointer.cpp:1545
QT_WARNING_POP
#define QT_WARNING_POP
Definition qcompilerdetection.h:1158
QT_WARNING_DISABLE_DEPRECATED
#define QT_WARNING_DISABLE_DEPRECATED
Definition qcompilerdetection.h:1163
QT_WARNING_PUSH
#define QT_WARNING_PUSH
Definition qcompilerdetection.h:1157
void
DBusConnection const char DBusError DBusBusType DBusError return DBusConnection DBusHandleMessageFunction void DBusFreeFunction return DBusConnection return DBusConnection return const char DBusError return DBusConnection DBusMessage dbus_uint32_t return DBusConnection dbus_bool_t DBusConnection DBusAddWatchFunction DBusRemoveWatchFunction DBusWatchToggledFunction void DBusFreeFunction return DBusConnection DBusDispatchStatusFunction void DBusFreeFunction DBusTimeout return DBusTimeout return DBusWatch return DBusWatch unsigned int return DBusError const DBusError return const DBusMessage return DBusMessage return DBusMessage return DBusMessage return DBusMessage return DBusMessage return DBusMessageIter int const void return DBusMessageIter DBusMessageIter return DBusMessageIter void DBusMessageIter void int return DBusMessage DBusMessageIter return DBusMessageIter return DBusMessageIter DBusMessageIter const char const char const char const char return DBusMessage return DBusMessage const char return DBusMessage dbus_bool_t return DBusMessage dbus_uint32_t return DBusMessage void
Definition qdbus_symbols_p.h:401
value
EGLOutputLayerEXT EGLint EGLAttrib value
[5]
Definition qeglstreamconvenience_p.h:46
Required
@ Required
Definition qmetaobject_p.h:49
length
GLenum GLuint GLenum GLsizei length
Definition qopengles2ext.h:151
type
GLenum type
Definition qopengles2ext.h:150
name
GLuint name
Definition qopengles2ext.h:156
val
GLuint GLfloat * val
Definition qopenglext.h:1513
precision
GLenum GLint GLint * precision
Definition qopenglext.h:1890
operator==
bool operator==(const QRandomGenerator &rng1, const QRandomGenerator &rng2)
Definition qrandom.cpp:1219
QT_DECLARE_QESDP_SPECIALIZATION_DTOR_WITH_EXPORT
#define QT_DECLARE_QESDP_SPECIALIZATION_DTOR_WITH_EXPORT(Class, ExportMacro)
Definition qshareddata.h:290
isAutoValue
static bool isAutoValue(const SQLHANDLE hStmt, int column)
Definition qsql_odbc.cpp:555
operator<<
Q_SQL_EXPORT QDebug operator<<(QDebug, const QSqlField &)
Definition qsqlfield.cpp:491
QT_DEPRECATED_VERSION_X_6_0
#define QT_DEPRECATED_VERSION_X_6_0(text)
Definition qtdeprecationmarkers.h:125
setValue
settings setValue("DataPump/bgcolor", color)
d
double d
Definition src_corelib_text_qlocale.cpp:9
other
QSharedPointer< T > other(t)
[5]
setType
proxy setType(QNetworkProxy::Socks5Proxy)
Type
Definition moc.h:24