QxOrm 1.4.9
C++ Object Relational Mapping library
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construct_null_qvariant.h
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31
32#ifndef _QX_CONSTRUCT_NULL_QVARIANT_H_
33#define _QX_CONSTRUCT_NULL_QVARIANT_H_
34
35#ifdef _MSC_VER
36#pragma once
37#endif
38
46#include <QtCore/qvariant.h>
47
48#include <QxDao/QxDateNeutral.h>
49#include <QxDao/QxTimeNeutral.h>
51
52namespace qx {
53namespace trait {
54
59template <typename T>
60struct construct_null_qvariant { static inline QVariant get() { return QVariant(); } };
61
62template <> struct construct_null_qvariant<QBitArray> { static inline QVariant get() { return QVariant(QVariant::BitArray); } };
63template <> struct construct_null_qvariant<QBitArray &> { static inline QVariant get() { return QVariant(QVariant::BitArray); } };
64template <> struct construct_null_qvariant<const QBitArray> { static inline QVariant get() { return QVariant(QVariant::BitArray); } };
65template <> struct construct_null_qvariant<const QBitArray &> { static inline QVariant get() { return QVariant(QVariant::BitArray); } };
66
67template <> struct construct_null_qvariant<QByteArray> { static inline QVariant get() { return QVariant(QVariant::ByteArray); } };
68template <> struct construct_null_qvariant<QByteArray &> { static inline QVariant get() { return QVariant(QVariant::ByteArray); } };
69template <> struct construct_null_qvariant<const QByteArray> { static inline QVariant get() { return QVariant(QVariant::ByteArray); } };
70template <> struct construct_null_qvariant<const QByteArray &> { static inline QVariant get() { return QVariant(QVariant::ByteArray); } };
71
72template <> struct construct_null_qvariant<bool> { static inline QVariant get() { return QVariant(QVariant::Bool); } };
73template <> struct construct_null_qvariant<bool &> { static inline QVariant get() { return QVariant(QVariant::Bool); } };
74template <> struct construct_null_qvariant<const bool> { static inline QVariant get() { return QVariant(QVariant::Bool); } };
75template <> struct construct_null_qvariant<const bool &> { static inline QVariant get() { return QVariant(QVariant::Bool); } };
76
77template <> struct construct_null_qvariant<short> { static inline QVariant get() { return QVariant(QVariant::Int); } };
78template <> struct construct_null_qvariant<short &> { static inline QVariant get() { return QVariant(QVariant::Int); } };
79template <> struct construct_null_qvariant<const short> { static inline QVariant get() { return QVariant(QVariant::Int); } };
80template <> struct construct_null_qvariant<const short &> { static inline QVariant get() { return QVariant(QVariant::Int); } };
81
82template <> struct construct_null_qvariant<int> { static inline QVariant get() { return QVariant(QVariant::Int); } };
83template <> struct construct_null_qvariant<int &> { static inline QVariant get() { return QVariant(QVariant::Int); } };
84template <> struct construct_null_qvariant<const int> { static inline QVariant get() { return QVariant(QVariant::Int); } };
85template <> struct construct_null_qvariant<const int &> { static inline QVariant get() { return QVariant(QVariant::Int); } };
86
87template <> struct construct_null_qvariant<long> { static inline QVariant get() { return QVariant(QVariant::LongLong); } };
88template <> struct construct_null_qvariant<long &> { static inline QVariant get() { return QVariant(QVariant::LongLong); } };
89template <> struct construct_null_qvariant<const long> { static inline QVariant get() { return QVariant(QVariant::LongLong); } };
90template <> struct construct_null_qvariant<const long &> { static inline QVariant get() { return QVariant(QVariant::LongLong); } };
91
92template <> struct construct_null_qvariant<long long> { static inline QVariant get() { return QVariant(QVariant::LongLong); } };
93template <> struct construct_null_qvariant<long long &> { static inline QVariant get() { return QVariant(QVariant::LongLong); } };
94template <> struct construct_null_qvariant<const long long> { static inline QVariant get() { return QVariant(QVariant::LongLong); } };
95template <> struct construct_null_qvariant<const long long &> { static inline QVariant get() { return QVariant(QVariant::LongLong); } };
96
97template <> struct construct_null_qvariant<float> { static inline QVariant get() { return QVariant(QVariant::Double); } };
98template <> struct construct_null_qvariant<float &> { static inline QVariant get() { return QVariant(QVariant::Double); } };
99template <> struct construct_null_qvariant<const float> { static inline QVariant get() { return QVariant(QVariant::Double); } };
100template <> struct construct_null_qvariant<const float &> { static inline QVariant get() { return QVariant(QVariant::Double); } };
101
102template <> struct construct_null_qvariant<double> { static inline QVariant get() { return QVariant(QVariant::Double); } };
103template <> struct construct_null_qvariant<double &> { static inline QVariant get() { return QVariant(QVariant::Double); } };
104template <> struct construct_null_qvariant<const double> { static inline QVariant get() { return QVariant(QVariant::Double); } };
105template <> struct construct_null_qvariant<const double &> { static inline QVariant get() { return QVariant(QVariant::Double); } };
106
107template <> struct construct_null_qvariant<unsigned short> { static inline QVariant get() { return QVariant(QVariant::UInt); } };
108template <> struct construct_null_qvariant<unsigned short &> { static inline QVariant get() { return QVariant(QVariant::UInt); } };
109template <> struct construct_null_qvariant<const unsigned short> { static inline QVariant get() { return QVariant(QVariant::UInt); } };
110template <> struct construct_null_qvariant<const unsigned short &> { static inline QVariant get() { return QVariant(QVariant::UInt); } };
111
112template <> struct construct_null_qvariant<unsigned int> { static inline QVariant get() { return QVariant(QVariant::UInt); } };
113template <> struct construct_null_qvariant<unsigned int &> { static inline QVariant get() { return QVariant(QVariant::UInt); } };
114template <> struct construct_null_qvariant<const unsigned int> { static inline QVariant get() { return QVariant(QVariant::UInt); } };
115template <> struct construct_null_qvariant<const unsigned int &> { static inline QVariant get() { return QVariant(QVariant::UInt); } };
116
117template <> struct construct_null_qvariant<unsigned long> { static inline QVariant get() { return QVariant(QVariant::ULongLong); } };
118template <> struct construct_null_qvariant<unsigned long &> { static inline QVariant get() { return QVariant(QVariant::ULongLong); } };
119template <> struct construct_null_qvariant<const unsigned long> { static inline QVariant get() { return QVariant(QVariant::ULongLong); } };
120template <> struct construct_null_qvariant<const unsigned long &> { static inline QVariant get() { return QVariant(QVariant::ULongLong); } };
121
122template <> struct construct_null_qvariant<unsigned long long> { static inline QVariant get() { return QVariant(QVariant::ULongLong); } };
123template <> struct construct_null_qvariant<unsigned long long &> { static inline QVariant get() { return QVariant(QVariant::ULongLong); } };
124template <> struct construct_null_qvariant<const unsigned long long> { static inline QVariant get() { return QVariant(QVariant::ULongLong); } };
125template <> struct construct_null_qvariant<const unsigned long long &> { static inline QVariant get() { return QVariant(QVariant::ULongLong); } };
126
127template <> struct construct_null_qvariant<QString> { static inline QVariant get() { return QVariant(QVariant::String); } };
128template <> struct construct_null_qvariant<QString &> { static inline QVariant get() { return QVariant(QVariant::String); } };
129template <> struct construct_null_qvariant<const QString> { static inline QVariant get() { return QVariant(QVariant::String); } };
130template <> struct construct_null_qvariant<const QString &> { static inline QVariant get() { return QVariant(QVariant::String); } };
131
132template <> struct construct_null_qvariant<QStringList> { static inline QVariant get() { return QVariant(QVariant::StringList); } };
133template <> struct construct_null_qvariant<QStringList &> { static inline QVariant get() { return QVariant(QVariant::StringList); } };
134template <> struct construct_null_qvariant<const QStringList> { static inline QVariant get() { return QVariant(QVariant::StringList); } };
135template <> struct construct_null_qvariant<const QStringList &> { static inline QVariant get() { return QVariant(QVariant::StringList); } };
136
137template <> struct construct_null_qvariant<QDate> { static inline QVariant get() { return QVariant(QVariant::Date); } };
138template <> struct construct_null_qvariant<QDate &> { static inline QVariant get() { return QVariant(QVariant::Date); } };
139template <> struct construct_null_qvariant<const QDate> { static inline QVariant get() { return QVariant(QVariant::Date); } };
140template <> struct construct_null_qvariant<const QDate &> { static inline QVariant get() { return QVariant(QVariant::Date); } };
141
142template <> struct construct_null_qvariant<QDateTime> { static inline QVariant get() { return QVariant(QVariant::DateTime); } };
143template <> struct construct_null_qvariant<QDateTime &> { static inline QVariant get() { return QVariant(QVariant::DateTime); } };
144template <> struct construct_null_qvariant<const QDateTime> { static inline QVariant get() { return QVariant(QVariant::DateTime); } };
145template <> struct construct_null_qvariant<const QDateTime &> { static inline QVariant get() { return QVariant(QVariant::DateTime); } };
146
147template <> struct construct_null_qvariant<QTime> { static inline QVariant get() { return QVariant(QVariant::Time); } };
148template <> struct construct_null_qvariant<QTime &> { static inline QVariant get() { return QVariant(QVariant::Time); } };
149template <> struct construct_null_qvariant<const QTime> { static inline QVariant get() { return QVariant(QVariant::Time); } };
150template <> struct construct_null_qvariant<const QTime &> { static inline QVariant get() { return QVariant(QVariant::Time); } };
151
152template <> struct construct_null_qvariant<QUuid> { static inline QVariant get() { return QVariant(QVariant::String); } };
153template <> struct construct_null_qvariant<QUuid &> { static inline QVariant get() { return QVariant(QVariant::String); } };
154template <> struct construct_null_qvariant<const QUuid> { static inline QVariant get() { return QVariant(QVariant::String); } };
155template <> struct construct_null_qvariant<const QUuid &> { static inline QVariant get() { return QVariant(QVariant::String); } };
156
157template <> struct construct_null_qvariant<qx::QxDateNeutral> { static inline QVariant get() { return QVariant(QVariant::String); } };
158template <> struct construct_null_qvariant<qx::QxDateNeutral &> { static inline QVariant get() { return QVariant(QVariant::String); } };
159template <> struct construct_null_qvariant<const qx::QxDateNeutral> { static inline QVariant get() { return QVariant(QVariant::String); } };
160template <> struct construct_null_qvariant<const qx::QxDateNeutral &> { static inline QVariant get() { return QVariant(QVariant::String); } };
161
162template <> struct construct_null_qvariant<qx::QxTimeNeutral> { static inline QVariant get() { return QVariant(QVariant::String); } };
163template <> struct construct_null_qvariant<qx::QxTimeNeutral &> { static inline QVariant get() { return QVariant(QVariant::String); } };
164template <> struct construct_null_qvariant<const qx::QxTimeNeutral> { static inline QVariant get() { return QVariant(QVariant::String); } };
165template <> struct construct_null_qvariant<const qx::QxTimeNeutral &> { static inline QVariant get() { return QVariant(QVariant::String); } };
166
167template <> struct construct_null_qvariant<qx::QxDateTimeNeutral> { static inline QVariant get() { return QVariant(QVariant::String); } };
168template <> struct construct_null_qvariant<qx::QxDateTimeNeutral &> { static inline QVariant get() { return QVariant(QVariant::String); } };
169template <> struct construct_null_qvariant<const qx::QxDateTimeNeutral> { static inline QVariant get() { return QVariant(QVariant::String); } };
170template <> struct construct_null_qvariant<const qx::QxDateTimeNeutral &> { static inline QVariant get() { return QVariant(QVariant::String); } };
171
172template <> struct construct_null_qvariant<std::string> { static inline QVariant get() { return QVariant(QVariant::String); } };
173template <> struct construct_null_qvariant<std::string &> { static inline QVariant get() { return QVariant(QVariant::String); } };
174template <> struct construct_null_qvariant<const std::string> { static inline QVariant get() { return QVariant(QVariant::String); } };
175template <> struct construct_null_qvariant<const std::string &> { static inline QVariant get() { return QVariant(QVariant::String); } };
176
177template <> struct construct_null_qvariant<std::wstring> { static inline QVariant get() { return QVariant(QVariant::String); } };
178template <> struct construct_null_qvariant<std::wstring &> { static inline QVariant get() { return QVariant(QVariant::String); } };
179template <> struct construct_null_qvariant<const std::wstring> { static inline QVariant get() { return QVariant(QVariant::String); } };
180template <> struct construct_null_qvariant<const std::wstring &> { static inline QVariant get() { return QVariant(QVariant::String); } };
181
182#ifdef _QX_ENABLE_QT_GUI
183
184template <> struct construct_null_qvariant<QBrush> { static inline QVariant get() { return QVariant(QVariant::Brush); } };
185template <> struct construct_null_qvariant<QBrush &> { static inline QVariant get() { return QVariant(QVariant::Brush); } };
186template <> struct construct_null_qvariant<const QBrush> { static inline QVariant get() { return QVariant(QVariant::Brush); } };
187template <> struct construct_null_qvariant<const QBrush &> { static inline QVariant get() { return QVariant(QVariant::Brush); } };
188
189template <> struct construct_null_qvariant<QColor> { static inline QVariant get() { return QVariant(QVariant::Color); } };
190template <> struct construct_null_qvariant<QColor &> { static inline QVariant get() { return QVariant(QVariant::Color); } };
191template <> struct construct_null_qvariant<const QColor> { static inline QVariant get() { return QVariant(QVariant::Color); } };
192template <> struct construct_null_qvariant<const QColor &> { static inline QVariant get() { return QVariant(QVariant::Color); } };
193
194template <> struct construct_null_qvariant<QFont> { static inline QVariant get() { return QVariant(QVariant::Font); } };
195template <> struct construct_null_qvariant<QFont &> { static inline QVariant get() { return QVariant(QVariant::Font); } };
196template <> struct construct_null_qvariant<const QFont> { static inline QVariant get() { return QVariant(QVariant::Font); } };
197template <> struct construct_null_qvariant<const QFont &> { static inline QVariant get() { return QVariant(QVariant::Font); } };
198
199#if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
200template <> struct construct_null_qvariant<QMatrix> { static inline QVariant get() { return QVariant(QVariant::Matrix); } };
201template <> struct construct_null_qvariant<QMatrix &> { static inline QVariant get() { return QVariant(QVariant::Matrix); } };
202template <> struct construct_null_qvariant<const QMatrix> { static inline QVariant get() { return QVariant(QVariant::Matrix); } };
203template <> struct construct_null_qvariant<const QMatrix &> { static inline QVariant get() { return QVariant(QVariant::Matrix); } };
204#endif // (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
205
206template <> struct construct_null_qvariant<QRegion> { static inline QVariant get() { return QVariant(QVariant::Region); } };
207template <> struct construct_null_qvariant<QRegion &> { static inline QVariant get() { return QVariant(QVariant::Region); } };
208template <> struct construct_null_qvariant<const QRegion> { static inline QVariant get() { return QVariant(QVariant::Region); } };
209template <> struct construct_null_qvariant<const QRegion &> { static inline QVariant get() { return QVariant(QVariant::Region); } };
210
211template <> struct construct_null_qvariant<QImage> { static inline QVariant get() { return QVariant(QVariant::Image); } };
212template <> struct construct_null_qvariant<QImage &> { static inline QVariant get() { return QVariant(QVariant::Image); } };
213template <> struct construct_null_qvariant<const QImage> { static inline QVariant get() { return QVariant(QVariant::Image); } };
214template <> struct construct_null_qvariant<const QImage &> { static inline QVariant get() { return QVariant(QVariant::Image); } };
215
216template <> struct construct_null_qvariant<QPixmap> { static inline QVariant get() { return QVariant(QVariant::Pixmap); } };
217template <> struct construct_null_qvariant<QPixmap &> { static inline QVariant get() { return QVariant(QVariant::Pixmap); } };
218template <> struct construct_null_qvariant<const QPixmap> { static inline QVariant get() { return QVariant(QVariant::Pixmap); } };
219template <> struct construct_null_qvariant<const QPixmap &> { static inline QVariant get() { return QVariant(QVariant::Pixmap); } };
220
221#endif // _QX_ENABLE_QT_GUI
222
223} // namespace trait
224} // namespace qx
225
226#endif // _QX_CONSTRUCT_NULL_QVARIANT_H_
Helper class to store a date value into database under neutral format (YYYYMMDD) => cross database co...
Helper class to store a date-time value into database under neutral format (YYYYMMDDHHMMSS) => cross ...
Helper class to store a time value into database under neutral format (HHMMSS) => cross database comp...
qx::QxDateNeutral : helper class to store a date value into database under neutral format (YYYYMMDD) ...
qx::QxDateTimeNeutral : helper class to store a date-time value into database under neutral format (Y...
qx::QxTimeNeutral : helper class to store a time value into database under neutral format (HHMMSS) =>...
T get(const QString &sKey)
Return the object of type T associated with key sKey, or return default instance of T() if the key do...
Definition QxCache.h:181
Root namespace for all QxOrm library features.
qx::trait::construct_null_qvariant<T>::get() : create a NULL QVariant which matches QVariant::Type wi...