QxOrm 1.4.9
C++ Object Relational Mapping library
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Support std::optional<T> class (requires a C++17 compiler) to manage NULL database value, this header should be included just after <QxOrm.h> header file (ideally in a precompiled header) More...

#include <optional>
#include <QtCore/qdatastream.h>
#include <QxOrm.h>
#include <QxTraits/construct_null_qvariant.h>

Go to the source code of this file.

Classes

struct  qx::trait::get_sql_type< std::optional< T > >
 
struct  qx::cvt::detail::QxConvert_ToJson< std::optional< T > >
 
struct  qx::cvt::detail::QxConvert_FromJson< std::optional< T > >
 
struct  qx::cvt::detail::QxConvert_ToString< std::optional< T > >
 
struct  qx::cvt::detail::QxConvert_FromString< std::optional< T > >
 
struct  qx::cvt::detail::QxConvert_ToVariant< std::optional< T > >
 
struct  qx::cvt::detail::QxConvert_FromVariant< std::optional< T > >
 

Namespaces

namespace  qx
 Root namespace for all QxOrm library features.
 
namespace  qx::trait
 QxOrm library traits (template metaprogramming) not available in boost::type_traits library.
 
namespace  qx::cvt
 Provide global functions to convert any kind of objects to/from QString and QVariant format.
 
namespace  qx::cvt::detail
 Internal helper tools for qx::cvt namespace.
 

Functions

template<typename T >
QDataStream & operator<< (QDataStream &stream, const std::optional< T > &t)
 
template<typename T >
QDataStream & operator>> (QDataStream &stream, std::optional< T > &t)
 

Detailed Description

Support std::optional<T> class (requires a C++17 compiler) to manage NULL database value, this header should be included just after <QxOrm.h> header file (ideally in a precompiled header)

Author
Lionel Marty

Definition in file QxStdOptional.h.

Function Documentation

◆ operator<<()

template<typename T >
QDataStream & operator<< ( QDataStream & stream,
const std::optional< T > & t )

Definition at line 55 of file QxStdOptional.h.

◆ operator>>()

template<typename T >
QDataStream & operator>> ( QDataStream & stream,
std::optional< T > & t )

Definition at line 64 of file QxStdOptional.h.