register_class doesn't get called

[nmarandi]

I have a code that I compile with GCC 9.4.0 and GCC 7.3.0!

The code has normal behavior with GCC 9.4.0. but with GCC 7.3.0, the register_class function doesn't get called.

If any further information is needed, let me know!

namespace qx
{

template <>
void register_class(QxClass<UserAccount> & t)
{
    qx::IxDataMember * pData = NULL;
    Q_UNUSED(pData);
    qx::IxSqlRelation * pRelation = NULL;
    Q_UNUSED(pRelation);
    qx::IxFunction * pFct = NULL;
    Q_UNUSED(pFct);
    qx::IxValidator * pValidator = NULL;
    Q_UNUSED(pValidator);

    t.setName("mixer_useraccount");

    pData = t.id(& UserAccount::username, "username", 0);

    pData = t.data(& UserAccount::password, "password", 0, true, true);

    qx::QxValidatorX<UserAccount> * pAllValidator = t.getAllValidator();
    Q_UNUSED(pAllValidator);
}

} // namespace qx

[QxOrm] execute sql query failed : SELEC FROM UserAccount
Database error number '
42601' :
QPSQL: Unable to create query
ERROR: syntax error at or near "SELEC"
LINE 1: SELEC FROM UserAccount

[QxOrm]

Hello,

This is strange !
Have you tried to build and execute the sample projects available in the ./test/ directory of QxOrm package ?

[nmarandi]

Hello,

This is strange ! Have you tried to build and execute the sample projects available in the ./test/ directory of QxOrm package ?

I have 20 classes that I want to persist in the database. The strange thing is that 18 of them behave normally.
The difference between classes that work and classes that don't work is that I call the qxorm functions in the member function of the class. In this state, it works normally. But when I call the qxorm function from other classes, it doesn't behave normally.

[QxOrm]

Maybe you could provide some code to help to resolve your issue ?

• a class which works
• a class which doesnt work
• an example of code which doesn't work

You can also try, at the beginning of your main function, to call :
qx::QxClassX::registerAllClasses(true);

[nmarandi]

Maybe you could provide some code to help to resolve your issue ?

• a class which works
• a class which doesnt work
• an example of code which doesn't work

You can also try, at the beginning of your main function, to call : qx::QxClassX::registerAllClasses(true);

this class doesn't work.

#include "QxRegister/QxRegister.h"

struct UserAccountData {
    QString username;
    QString password;
};

QX_REGISTER_PRIMARY_KEY(UserAccountData, QString)
QX_REGISTER_HPP(UserAccountData, qx::trait::no_base_class_defined, 0)


#include <QxOrm.h>

QX_REGISTER_CPP(UserAccountData)

namespace qx
{

template <>
void register_class(QxClass<UserAccountData> & t)
{
    qDebug() << "void register_class(QxClass<UserAccountData> & t)";
    qx::IxDataMember * pData = NULL;
    Q_UNUSED(pData);
    qx::IxSqlRelation * pRelation = NULL;
    Q_UNUSED(pRelation);
    qx::IxFunction * pFct = NULL;
    Q_UNUSED(pFct);
    qx::IxValidator * pValidator = NULL;
    Q_UNUSED(pValidator);

    t.setName("mixer_useraccount");

    pData = t.id(& UserAccountData::username, "username", 0);

    pData = t.data(& UserAccountData::password, "password", 0, true, true);

    qx::QxValidatorX<UserAccountData> * pAllValidator = t.getAllValidator();
    Q_UNUSED(pAllValidator);
}

} // namespace qx

qx::QxClassX::registerAllClasses(true); doesn't work. :(

[QxOrm]

Hello,
I think the issue is that you use the macro QX_REGISTER_HPP / QX_REGISTER_CPP without wrap them correctly in your own macro.
I would recommend :

• try to build some projects samples from ./test/ directory of QxOrm package (for example the qxBlog project)
• if the qxBlog project runs fine, then it could be a starter pack for your project
• or you can also try QxEntityEditor application : you can create a project with 5 classes, and QxEntityEditor will generate the correct C++ code for your persistent classes.

[nmarandi]

Using QX_REGISTER_HPP_EXPORT_DLL and QX_REGISTER_CPP_EXPORT_DLL fix the problem. Thanks

maybe it is better to change it in the manual.

in *.h header file (containing class definition) : use QX_REGISTER_HPP(class_name, base_class, class_version) macro ;
in *.cpp source file (containing class implementation) : use QX_REGISTER_CPP(class_name) macro ;
in *.cpp source file (containing class implementation) : specialize template function : void qx::register_class(qx::QxClass & t).

[qht1003077897]

yes,QX_REGISTER_HPP AND QX_REGISTER_CPP is not available，Using QX_REGISTER_HPP_EXPORT_DLL and QX_REGISTER_CPP_EXPORT_DLL fix the problem